Chapter 16.04
BUILDING CODES Revised 8/24
16.04.000 Chapter Contents
Sections:
Article I. BUILDING CODES
16.04.010 The "Building Code."
16.04.020 Adoption of Referenced Codes -- Purpose. Revised 8/24
16.04.030 General Requirements for all Referenced Codes.
16.04.040 Amendments to the Referenced Codes. Revised 8/24
16.04.050 Duties and Powers of Building Official -- General.
16.04.060 Building Codes, Appeals.
16.04.070 Violations, Penalties and Nuisance.
Article IV. FLOATING BOAT MOORAGE
16.04.160 Purpose of regulations.
16.04.170 Applicability.
16.04.180 Content generally.
16.04.190 Definitions.
16.04.200 Permit required for construction.
16.04.220 Construction materials.
16.04.230 Size, spacing and fire protection requirements.
16.04.240 Fueling facility requirements.
Article VI. MOBILE/MANUFACTURED HOUSING
16.04.390 Definitions.
16.04.400 Incorporation of certain WAC provisions -- Nonconforming housing.
16.04.410 Installation permit required -- Smoke detectors required when.
16.04.430 Electrical connection permit.
16.04.440 Plumbing permit.
16.04.450 Permit expiration -- Extension.
16.04.460 Use of mobile housing for nonresidential purposes.
Article VII. FLOODPLAIN DEVELOPMENT
16.04.500 Floodplain Development.
(Ord. 7389 §3, 2024; Ord. 7026 §1, 2016; Ord. 6722 §1, 2010, repealed Sections 16.04.120, 16.04.480 and 16.04.490; Ord. 6523 §2, 2008, repealed Section 16.04.150 and Sections 16.04.260-16.04.380; Ord. 6310 §1, §2, §3, §6, §15, 2004).
Article I. BUILDING CODES
16.04.010 The "Building Code"
This Chapter shall be known as the "Building Code," may be cited as such, and will be referred to herein as "this code." The codes adopted in this Chapter shall be collectively the "Building Code."
(Ord. 7026 §1, 2016; Ord. 6854 §1, 2013; Ord. 6722 §1, 2010; Ord. 6310 §2, 2004).
16.04.020 Adoption of Referenced Codes -- Purpose Revised 8/24
A. Pursuant to RCW 19.27.031, the City of Olympia hereby adopts the following codes, as amended by the Washington State Building Code Council, and as thereafter amended by the City of Olympia, for the purpose of establishing rules and regulations for the construction, alteration, removal, demolition, use and occupancy, location, and maintenance of buildings and structures, as well as the installation, repair, replacement, or alteration of electrical, mechanical, and plumbing systems along with their associated equipment, appliances, fixtures, fittings, and appurtenances thereto, and providing for the issuance of permits and collection of fees, providing penalties for the violation of such codes and each and all of the regulations, provisions, conditions, and terms of these code standards, rules, and regulations and appendices as noted. The City Clerk shall maintain on file one copy of each code and each code can also be accessed electronically by the following hyperlinks provided within this section.
1. International Building Code Adopted.
The current State adopted edition of the International Building Code, (“IBC”), as adopted by the State Building Code Council in Chapter 51-50 WAC (excluding Chapter 1, Section 101.4.3 “Plumbing”; excluding Chapter 1, Section 105.2 “work exempt from permit”, item 3, “Oil Derricks”; excluding Chapter 1, Section 110.3.5 “Exception”; excluding Chapter 1, Section 113, Board of Appeals), as published by the International Code Council, Inc. (ICC), including ICC A117.1-2017 “Accessible and usable buildings and facilities”, and the following Appendices are hereby adopted:
Appendix E, Supplementary Accessibility Requirements ICC A117. Current State adopted version
Appendix G, Flood resistant construction
Appendix J, Grading
2. International Residential Code Adopted.
The current State adopted edition of the International Residential Code (“IRC”), as published by the International Code Council, Inc., as adopted by the State Building Code Council in Chapter 51-51 WAC (excluding Chapter 1, Section R112, Board of Appeals, Chapter 11, and Chapters 25 through 43), except that Chapter 29, Section P2904 is adopted and the following Appendices are hereby adopted:
Appendix F Passive Radon Gas Controls
Appendix Q, Tiny Houses
Appendix T, Solar-Ready Provisions-Detached One-and Two-Family Dwellings, Multiple Single-Family Dwellings (Townhouses)
Appendix U, Dwelling Unit Fire Sprinkler Systems, with the following amendment:
Section P2904.1.1 Required sprinkler locations. Sprinklers shall be installed to protect all areas of a dwelling unit.
Exceptions. The following do not require sprinklers:
1. Uninhabitable attics, crawl spaces, and normally unoccupied concealed spaces that do not contain fuel-fired appliances. In uninhabitable attics, crawl spaces, and normally unoccupied concealed spaces that contain fuel-fired equipment, a sprinkler must be installed above the equipment; however, sprinklers are not required in the remainder of the space.
2. Clothes closets, linen closets, and pantries not exceeding 24 square feet (2.2 m2) in area, with the smallest dimension not greater than 3 feet (915 mm) and having wall and ceiling surfaces of gypsum board.
3. Bathrooms not more than 55 square feet (5.1 m2) in area.
4. Garages; carports; exterior porches; unheated entry areas, such as mud rooms, that are adjacent to an exterior door; and similar areas.
5. Detached garage conversions to accessory dwelling units and detached accessory dwelling units with utilities served by an existing single-family residence that does not have an existing sprinkler system.
Appendix V, Fire Sprinklers
3. International Mechanical Code Adopted.
The current State adopted edition of the International Mechanical Code (“IMC”), as published by the International Code Council, Inc., as adopted by the State Building Code Council in Chapter 51-52 WAC (excluding Chapter 1, Section 109, Means of Appeals), is hereby adopted, and includes adoption of the 2021 Edition of the ANSI Z223.1/NFPA 54 National Fuel Gas Code and the current State adopted version of the Liquefied Gas Code (NFPA 58) except as otherwise specified by the adoption of referenced Codes.
4. Uniform Plumbing Code Adopted.
The current State adopted edition of the Uniform Plumbing Code (“UPC”), as published by the International Association of Plumbing and Mechanical Officials (IAPMO), as adopted by the State Building Code Council in Chapters 51-56 WAC.
5. International Energy Conservation Code/Washington Residential Energy Codes Adopted.
Washington State Residential Energy Code, Chapter 51-11R WAC, excluding SECTION R109 BOARD OF APPEALS
The current State adopted edition of the Washington State Residential Energy Code and the following Appendices are hereby adopted:
Appendix RA, Optional Energy Efficiency Measures – One Step
Appendix RB, Optional Energy Efficiency Measures – Two Step
Appendix RC, Outdoor Design Temperatures for Washington Proponent Options
6. International Energy Conservation Code/Washington Commercial Energy Codes Adopted.
Washington State Commercial Energy Code, Chapter 51-11C WAC, excluding SECTION R109 BOARD OF APPEALS
The current State adopted Edition of the Washington State Commercial Energy Code and the following Appendices are hereby adopted:
Appendix A, Default Heat Loss Coefficients
Appendix B, Default Internal Load Values and Schedules
Appendix C, Exterior Design Conditions
Appendix D, Calculation of HVAC Total System Performance Ratio
Appendix E, Renewable Energy
Appendix F, Outcome-Based Energy Budget
7. Manufactured Home Standards adopted.
The Manufactured Home Standards established by the State of Washington governing the installation of manufactured homes (as set forth in WAC Chapter 296-150M), are hereby adopted.
8. International Fire Code Adopted.
The current State adopted edition of the International Fire Code (“IFC”), as published by the International Code Council, as adopted by the State Building Code Council in Chapter 51-54 WAC (excluding Chapter 1, Section 108, Board of Appeals), and the following Appendices are hereby adopted:
Appendix B, Fire-Flow requirements for Buildings
Appendix E, Hazard Categories
Appendix F, Hazard Rankings
Appendix G, Cryogenic Fluids-Weight and Volume Equivalents
Appendix H, Hazardous Materials Management Plan (HMMP) and Hazardous Materials Inventory Statement (HMIS) Instructions
Appendix I, Fire Protection Systems-Noncompliant Conditions
9. International Existing Building Code Adopted.
The current State adopted edition of the International Existing Building Code, as published by the International Code Council, Inc. (excluding Chapter 1, Section 112, Board of Appeals), is hereby adopted as the Existing Building Code of the City of Olympia for regulating and governing the repair, alteration, change of occupancy, addition, and relocation of existing buildings, including historic buildings; providing for the issuance of permits and collection of fees therefor; and each and all of the regulations, provisions, conditions, and term of the Existing Building Code, and the following Appendix is hereby adopted:
Appendix A, Guidelines for the Seismic Retrofit of Existing Buildings
10. International Swimming Pool and Spa Code Adopted.
The current State adopted edition of the International Swimming Pool and Spa Code, as published by the International Code Council, Inc. (by reference in the 2021 International Building Code WAC 51.50, Section 3109 and the 2021 International Residential Code WAC 51-51, Section 38), is hereby adopted regulating the installation of pools and spas, including ANSI/APSP/ICC-7 Standards for Suction Entrapment Avoidance.
11. International Fuel Gas Code Adopted.
The current State adopted edition of the International Fuel Gas Code, as published by the International Code Council, Inc., is hereby adopted as the Fuel Gas Code for the City of Olympia.
(Ord. 7389 §1, 2024; Ord. 7278 §1, 2021; Ord. 7273 §1, 2021; Ord. 7271 §1, 2021; Ord. 7026 §1, 2016; Ord. 6854 §§1, 4, 2013; Ord. 6722 §1, 2010; Ord. 6635 §1, 2009; Ord. 6523 §3, 2008; Ord. 6310 §2, 2004).
16.04.030 General Requirements for all Referenced Codes
A. Conflict between Codes
1. Whenever there is a conflict between an adopted code in Section 16.04.020 and the requirements contained throughout the remainder of Chapter 16.04 of the Olympia Municipal Code (OMC), the OMC shall govern.
2. With respect to codes adopted by reference, the hierarchy of codes established in RCW 19.27.031 shall govern, except where, in any specific case, different sections of this code specify different materials, methods of construction or other requirements, the most restrictive shall govern. Where there is a conflict between a general requirement and a specific requirement, the specific requirement shall be applicable.
3. The provisions of this code shall not be deemed to nullify any provisions of local, state or federal law.
B. Permits and Referenced Code Information
1. Ownership. The ownership of a permit inures to the property owner. The Permit Applicant shall be the property owner or the property owner’s authorized agent.
2. Permit expiration -- Extension.
a. Every permit issued by the building official under the provisions of this code shall expire and become null and void if the building or work authorized by such permit is not commenced within one hundred eighty days from the date such permit is issued, or if the building or work authorized by such permit is suspended or abandoned for a period of at least one hundred eighty days at any time after the work is commenced. The time period will be measured by the length of time between required inspections. Should a permit expire as determined by the building official, a new permit shall first be obtained and the fee therefor paid based on the work left to complete the project for which the permit is issued, provided no substantial changes have been made or will be made in the original plans and specifications for such work. Any new permit shall comply with the provisions of the codes currently adopted at the time of permit issuance.
b. Any permittee holding an unexpired permit may apply for an extension of time when the permittee is unable to commence work within the time required by this section. The building official may extend the time for action by the permittee for a period not exceeding one hundred eighty days upon a showing by the permittee that circumstances beyond the control of the permittee have prevented action from being taken.
c. A renewal permit fee shall be based on the percentage of incomplete work. All permits expire after eighteen months from the date of issue if the work is not ongoing, yet completed or a permit extension granted.
3. Permit Fees - See OMC Section 4.36.010, Building code review and permit fees.
C. Definitions.
1. Definition for Single Room Occupancies to read:
A single room occupancy sleeping unit must be at least 120 square feet and have unencumbered access to both sanitary facilities and a full common kitchen facility.
Sanitary Facilities:
a. At least one flush toilet, lavatory basin, and bathtub or shower must be supplied for each eight sleeping units.
b. Each sleeping unit must have access to a flush toilet.
c. Each sleeping unit must have access to a lavatory basin and bathtub or shower supplied at all times with an adequate quantity of hot and cold running water.
d. All sanitary facilities must be in proper operating condition and be adequate for personal cleanliness and the disposal of human waste. The facilities must utilize an approvable public or private disposal system.
Space and security:
a. Each sleeping unit must have 120 square feet of floor space and at least four square feet of closet space.
b. Exterior doors and windows accessible from the outside must be lockable.
Access:
a. Residents must be able to access their sleeping unit without passing through another sleeping unit.
b. Residents must be able to access sanitary and kitchen facilities with no encumbrances that could prevent access. Access to these facilities cannot be through another sleeping unit but may be located in a detached community building located on the same site.
(Ord. 7187 §3, 2019; Ord. 7026 §1, 2016; Ord. 6854 §1, 2013; Ord. 6722 §1, 2010; Ord. 6523 §4, 2008; Ord. 6310 §2, 2004).
16.04.040 Amendments to the Referenced Codes Revised 8/24
A. International Building Code Amendments. The following sections of the International Building Code (“IBC”), as adopted by this Ordinance, are amended as follows:
1. Amend Section 105.2 Work Exempt from Permit, item 1 to read: One-story detached accessory structures used as tool and storage sheds, playhouses, and similar uses, provided the floor area is not greater than 200 square feet (18.58 m2).
2. Reserved.
3. Amend Section 110.3.10 Final inspection. The final inspection is to be made after all conditions of SEPA, Hearings Examiner, Design Review, Development Engineering, Stormwater Ordinance, and the Tree, Soil and Native Vegetation Ordinance are either complied with or bonded for at a rate of 125% in addition to finish grading; and the building is completed and ready for occupancy.
4. Amend Section 111.2 Certificate issued. After the Building Official inspects the building or structure and finds no violations of the provisions of this Code or other laws and regulations, which are enforced, by the Community Planning and Development Department, the Building Official shall issue a Certificate of Occupancy, which shall contain the following:
a. The building permit number.
b. The address of the structure.
c. The name and address of the owner or the owner’s authorized agent.
d. A description of that portion of the structure for which the certificate is issued.
e. A statement that the described portion of the structure has been inspected for compliance with the requirements of this code for the occupancy and division of occupancy and the use for which the proposed occupancy is classified.
f. The name of the Building Official.
g. The edition of the code under which the permit was issued.
h. The name of the tenant, use and occupancy, in accordance with the provisions of Chapter 3.
i. The type of construction as defined in Chapter 6.
j. The design occupant load.
k. If an automatic sprinkler system is provided, whether the sprinkler system is required.
l. Any special stipulations or conditions of the building permit.
5. Add Subsection 903.2 Additional Sprinkler Requirements. There are additional sprinkler requirements in all structures or buildings where the gross square footage, basements included, exceeds 5,000 square feet, or in all structures or buildings more than three stories in height (unless other sections are more restrictive). The area and height increases specified in IBC Sections 504, 506, and 507 shall be permitted. For the purposes of this section, portions of buildings separated by a fire wall may be considered as separate buildings, except that the entire gross floor area of all floors will be used to determine fire sprinkler requirements.
In addition, in all newly constructed or substantially improved buildings, where the fire perimeter access (as required under OMC 16.32.050) or access roadways for fire apparatus cannot be provided due to design and/or location, fire sprinkler systems may be required by the Olympia Fire Marshal.
B. International Residential Code Amendments. The following sections of the International Residential Code (“IRC”), as adopted by this Ordinance, are amended as follows:
1. Reserved.
2. Amend Section R110.3 Certificate issued. After the Building Official inspects the building or structure and finds no violations of the provisions of this code or other laws and regulations, which are enforced, by the Community Planning and Development Department, the Building Official shall issue a Certificate of Occupancy, which shall contain the following:
a. The building permit number.
b. The address of the structure.
c. The name and address of the owner or the owners authorized agent.
d. A description of that portion of the structure for which the certificate is issued.
e. A statement that the described portion of the structure has been inspected for compliance with the requirements of this code for the occupancy and division of occupancy and the use for which the proposed occupancy is classified.
f. The name of the Building Official.
g. The edition of the code under which the permit was issued.
h. The use and occupancy.
i. The type of construction as defined in Chapter 6 of the International Building Code.
j. The design occupant load.
k. If an automatic sprinkler system is provided, whether the sprinkler system is required.
l. Any special stipulations or conditions of the building permit.
3. Amend Table R301.2 (a), Climatic and Geographic Design Criteria, as follows:
|
SUBJECT TO DAMAGE FROM |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
ROOF SNOW LOAD |
WIND SPEED (mph) |
SEISMIC DESIGN CATEGORY |
Weathering |
Front Line Depth |
Termite |
WINTER DESIGN TEMP (Degrees) |
ICE SHIELD UNDER-LAYMENT REQUIRED |
FLOOD HAZARDS |
AIR FREEZING INDEX (degrees) |
MEAN ANNUAL TEMP (degrees) |
|
25 |
110 |
D1 |
Moderate |
12" |
Slight to Moderate |
17 |
No |
Sept. 1, 2016 |
170 |
51 |
4. Add Section R313.2 Automatic Sprinkler System Requirements. A fully automatic residential fire sprinkler system shall be designed, installed, tested, and maintained per N.F.P.A. (National Fire Protection Association) 13, current edition, RCW 18.160 and the approval of the Fire Chief, in all structures subject to this code pursuant to Section R101.2 (including additions and alterations to structures with existing sprinkler systems).
(Ord. 7389 §2, 2024; Ord. 7321 §§3, 4, 2022; Ord. 7271 §2, 2021; Ord. 7027 §4, 2016; Ord. 7026 §1, 2016; Ord. 6854 §5, 2013).
16.04.050 Duties and Powers of Building Official -- General
A. The building official is hereby authorized and directed to enforce the provisions of this code. The building official shall have the authority to render interpretations of this code and to adopt policies and procedures in order to clarify the application of its provisions. Such interpretations, policies and procedures shall be in compliance with the intent and purpose of this code. Such policies and procedures shall not have the effect of waiving requirements specifically provided for in this code.
B. The building official is hereby authorized to issue a stop work order on any type of construction that the building official has determined is in violation of a rule, regulation, proclamation or order issued by a duly authorized government official in a declared emergency. Duly authorized government official means the Governor, the City Manager, the Director of Emergency Management, or the Mayor, as provided in OMC Chapter 2.24.
(Ord. 7238 §2, 2020; Ord. 7026 §1, 2016; Ord. 6854 §1, 2013; Ord. 6722 §1, 2010).
16.04.060 Building Codes, Appeals
Appeals under this chapter may be made pursuant to OMC 18.70.170.
(Ord. 7026 §1, 2016; Ord. 6854 §1, 2013; Ord. 6722 §1, 2010).
16.04.070 Violations, Penalties and Nuisance
A. It shall be unlawful for any person, firm, or corporation to knowingly erect, construct, enlarge, alter, repair, move, improve, remove, convert or demolish, equip, use, change the occupancy, occupy or maintain any building or structure in the City of Olympia, or cause or permit the same to be done, in violation of any of the provisions of this Code. Such a violation shall be a misdemeanor punishable by a fine not to exceed One Thousand Dollars ($1,000) and/or imprisonment not to exceed ninety (90) days or both such fine and imprisonment. Each day shall constitute a separate offense. In the event of continuing violation or failure to comply, the second and subsequent days shall constitute a gross misdemeanor, punishable by a fine not to exceed Five Thousand Dollars ($5,000) and/or imprisonment for not more than three hundred and sixty-five (365) days or both such fine and imprisonment.
B. As an additional and concurrent remedy, it shall be a civil infraction for any person, firm, or corporation to erect, construct, enlarge, alter, repair, move, improve, remove, convert or demolish, equip, use, occupy or maintain any building or structure in the City of Olympia, or cause or permit the same to be done in violation of any provision of this code. Each day shall constitute a separate civil infraction. Any person, firm, or corporation found to have committed a civil infraction shall be assessed a monetary penalty as follows:
1. First offense: Class 3 ($50), not including statutory assessments.
2. Second offense arising out of the same facts as the first offense: Class 2 ($125), not including statutory assessments.
3. Third offense arising out of the same facts as the first offense: Class 1 ($250), not including statutory assessments.
C. As an additional and concurrent remedy, it shall be a public nuisance subject to injunction and abatement, for any person, firm, or corporation to erect, construct, enlarge, alter, repair, move, improve, remove, convert, or demolish, equip, use, occupy, or maintain any building or structure in the City of Olympia, or cause or permit the same to be done in violation of any provision of this Code.
See also OMC Chapter 4.44, Uniform Civil Enforcement.
(Ord. 7026 §1, 2016; Ord. 6854 §1, 2013; Ord. 6722 §1, 2010).
Article IV. FLOATING BOAT MOORAGE
16.04.160 Purpose of regulations
The purpose of the following sections is to safeguard life, limb, property and the public welfare by regulating floating boat moorage.
(Ord. 7026 §1, 2016; Ord. 6854 §1, 2013; Ord. 6722 §1, 2010; Ord. 4199 §3(part), 1980).
16.04.170 Applicability
The provisions of this article shall apply to the construction, alteration, repair and use of a boat marina providing floating boat moorage within the city. There shall be no habitable space or use of any space for living purposes on any portion of a floating boat moorage constructed under the provisions of this chapter. This chapter shall apply only to floating construction located over water. All construction on piling shall conform to the appropriate section of the Building Code.
(Ord. 7026 §1, 2016; Ord. 6854 §1, 2013; Ord. 6722 §1, 2010; Ord. 6310 §5, 2004; Ord. 4199 §3 (part), 1980).
16.04.180 Content generally
This article sets forth rules and regulations to control floating boat moorage; establishes an administrative procedure for issuance of permits; and provides for approval of plans and inspection of construction.
(Ord. 7026 §1, 2016; Ord. 6854 §1, 2013; Ord. 6722 §1, 2010; Ord. 4199 §3 (part), 1990).
16.04.190 Definitions
For the purpose of this article:
A. "Finger float" means a float defining the length of moorage stall, adjoining a single boat stall, and connected to a main float.
B. "Float system" means a combination of a main float with finger floats connected, either open or covered.
C. "Main float" means a center or side float connected by a ramp to the shore, being fixed laterally by a system of piling to one side or the other at regular intervals.
D. "Marina" means a basin or safe anchorage providing moorage for small vessels, especially one at which provisions, supplies and fuel may be obtained.
(Ord. 7026 §1, 2016; Ord. 6854 §1, 2013; Ord. 6722 §1, 2010; Ord. 4199 §3 (part), 1980).
16.04.200 Permit required for construction
No person shall do any construction without first having obtained a building permit from the building official.
(Ord. 7026 §1, 2016; Ord. 6854 §1, 2013; Ord. 6722 §1, 2010; Ord. 4199 §3 (part), 1980).
16.04.220 Construction materials
A. Covered moorage roof covering shall be noncombustible material.
B. Floating structures and floats shall be of material type allowed by the building code.
(Ord. 7026 §1, 2016; Ord. 6854 §1, 2013; Ord. 6722 §1, 2010; Ord. 5799 §6, 1998; Ord. 4199 §3(part), 1980).
16.04.230 Size, spacing and fire protection requirements
A. Maximum length of a roof covering over any float system shall be four hundred feet as measured along a main float; provided, that not less than seventy-five percent of the exterior walls are open. Maximum area of any covered moorage shall not exceed twelve thousand square feet.
B. The minimum separation of float systems with covered moorage shall be not less than the nominal length of two mooring slips or twenty feet, whichever is larger.
C. Approved fire extinguishers and water for firefighting purposes as required by section 16.32.080 shall be installed.
(Ord. 7026 §1, 2016; Ord. 6854 §1, 2013; Ord. 6722 §1, 2010; Ord. 6310 §7, 2004; Ord. 5297 §6, 1992; Ord. 4335 §1, 1981; Ord. 4195 §3(part), 1980).
16.04.240 Fueling facility requirements
A. Fueling floats shall be constructed of gas-resistant flotation material and shall be isolated from float systems.
B. All fuel lines shall be provided with flexible connections from the shore to floating facilities.
C. Approved fire extinguishers shall be provided near fuel dispensers.
D. Gangplank access from shore to fuel floats shall be within one hundred seventy-five feet of fuel dispensers.
Exception: Where fire protection systems approved by the Fire Chief are provided, distance limitations in this section may be modified.
E. Fresh water taps shall be available on fuel floats.
F. Water for firefighting purposes shall be as required by the International Fire Code.
(Ord. 7026 §1, 2016; Ord. 6854 §1, 2013; Ord. 6722 §1, 2010; Ord. 6310 §8, 2004; Ord. 5891 §1, 1999; Ord. 4199 §3(part), 1980).
Article VI. MOBILE/MANUFACTURED HOUSING
16.04.390 Definitions
The following words shall be defined as follows:
A. “Skirting” means a type of wainscoting which encloses the lower part of the mobile home, covering wheels and undercarriage.
B. "Footing" means that portion of the support system that transmits loads directly to the soil.
C. "Ground set" means the installation of mobile homes with crawl space elevation three inches or more below elevation of exterior finished grade.
D. "Main frame" means the structural component on which is mounted the body of the mobile home.
E. "Mobile/manufactured housing" means a residential unit on one or more chassis for towing to the point of use and designed to be used with a foundation as a dwelling unit on a year-round basis, and which bears an insignia issued by a state or federal regulatory agency indicating that the mobile/manufactured home complies with all applicable construction standards of the U.S. Department of Housing and Urban Development definition of manufactured home. A commercial coach, recreational vehicle and motor home are not a mobile/manufactured home.
F. "Pier" means that portion of the support system between the footing and the mobile home, exclusive of caps and shims.
G. "Recreational vehicle" is a structure
1. built on a single chassis,
2. four hundred square feet or less when measured at the largest exterior horizontal projections,
3. self-propelled or permanently towable by a light-duty truck and
4. designed primarily not for use as a permanent dwelling but as temporary living quarters for recreational, camping, travel or seasonal use.
H. "Support system" means a combination of footings, piers, caps and shims that will, when properly installed, support the mobile/manufactured home.
(Ord. 7026 §1, 2016; Ord. 6854 §1, 2013; Ord. 6722 §1, 2010; Ord. 4458 §1(part), 1983).
16.04.400 Incorporation of certain WAC provisions -- Nonconforming housing
A. The following sections of Chapter 296-150B, Washington Administrative Code (WAC), as now or hereafter amended, are incorporated by reference herein:
296-150C Commercial coaches.
296-150F Factory-built housing and commercial structures.
296-150I Manufactured home installer training and certification program.
296-150M Manufactured homes.
296-150T Factory-built temporary worker housing structures.
B. All mobile/manufactured housing installed in the city before June 1, 1983, which does not comply with the requirements set forth in this article are deemed to be nonconforming.
Nonconforming mobile/manufactured homes will be allowed to remain at their existing locations without complying with the provisions of this chapter. Each person proposing to move a mobile/manufactured home, including nonconforming mobile/manufactured homes, to another location, including a location on the same site if footing locations will be different than the original location, must first obtain a permit from the Department of Public Works as required by this chapter. All such mobile/manufactured homes shall be made to comply with all requirements of this chapter prior to their establishment or use on the new site.
(Ord. 7026 §1, 2016; Ord. 6854 §1, 2013; Ord. 6722 §1, 2010; Ord. 4458 §1(part), 1983).
16.04.410 Installation permit required -- Smoke detectors required when
A. The owner or the installer of the mobile/manufactured home(s) must obtain an installation permit from the City Community Planning and Development Department before installing mobile homes that will be used as a residence in a mobile home park.
1. A dealer may not deliver a mobile/manufactured home until the owner or installer has obtained an installation permit for the mobile home. An application form for an installation permit shall be obtained from the Community Planning and Development Department.
2. The applicant shall pay at the time of application a permit fee prescribed by the approved fee schedule.
B. Smoke Detectors. All mobile/manufactured homes not constructed to HUD standards shall have or be provided with an approved smoke detector, conforming to the Building Code Standard No. 43-6. The detector shall be mounted on or near the ceiling at a point centrally located in the corridor or area giving access to rooms used for sleeping purposes. Detectors not factory installed may be either self-contained or plug in types so that no alteration of the mobile housing is required for their installation.
(Ord. 7026 §1, 2016; Ord. 6854 §1, 2013; Ord. 6722 §1, 2010; Ord. 6310 §12, 2004; Ord. 5799 §7, 19989; Ord. 4458 §1(part), 1983).
16.04.430 Electrical connection permit
The electrical connection permit to the mobile/manufactured housing shall be per the ordinance adopting the National Electrical Code as codified in Chapter 16.04.
(Ord. 7026 §1, 2016; Ord. 6854 §1, 2013; Ord. 6722 §1, 2010; Ord 6310 §13, 2004; Ord. 4458 §1(part), 1983).
16.04.440 Plumbing permit
The plumbing permit shall be secured for the hookup to the city sewer or septic tank and the installation inspected as provided in the Plumbing Code.
(Ord. 7026 §1, 2016; Ord. 6854 §1, 2013; Ord. 6722 §1, 2010; Ord. 6310 §14, 2004; Ord. 4458 §1(part), 1983).
16.04.450 Permit expiration -- Extension
A. Every permit issued by the building official under the provisions of this code shall expire and become null and void if the building or work authorized by such permit is not commenced within one hundred eighty days from the date such permit is issued, or if the building or work authorized by such permit is suspended or abandoned for a period of at least one hundred eighty days at any time after the work is commenced. The time period will be measured by the length of time between required inspections. Should a permit expire as determined by the building official, a new permit shall first be obtained and the fee therefor paid based on the work left to complete the project for which the permit is issued, provided no substantial changes have been made or will be made in the original plans and specifications for such work. Any new permit shall comply with the provisions of the codes currently adopted at the time of permit issuance.
B. Any permittee holding an unexpired permit may apply for an extension of time when the permittee is unable to commence work within the time required by this section. The building official may extend the time for action by the permittee for a period not exceeding one hundred eighty days upon a showing by the permittee that circumstances beyond the control of the permittee have prevented action from being taken.
(Ord. 7187 §3, 2019; Ord. 7026 §1, 2016; Ord. 6854 §1, 2013; Ord. 6722 §1, 2010; Ord. 4458 §1(part), 1983).
16.04.460 Use of mobile housing for nonresidential purposes
A. Mobile/manufactured housing shall not be used for nonresidential purposes. All nonresidential structures shall meet the factory built commercial structure standards prescribed in RCW 43.22.490, as now or hereafter amended.
B. The placement of factory built commercial structures for temporary or permanent use may be for nonresidential purposes when approved by the Director and permitted by the building official.
C. The use must comply with the use district in which it is placed.
(Ord. 7026 §1, 2016; Ord. 6967 §5, 2015; Ord. 6854 §1, 2013; Ord. 6722 §1, 2010; Ord. 4458 §1(part), 1983).
Article VII. FLOODPLAIN DEVELOPMENT
16.04.500 Floodplain Development
All development within a designated floodplain located in the City of Olympia shall comply with OMC Chapter 16.70 and the construction specifications detailed in IBC Appendix G, Flood resistant construction, and the amended IRC Section R322 Flood-Resistant Construction.
(Ord. 7026 §1, 2016; Ord. 6854 §1, 2013; Ord. 6722 §1, 2010).