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Olympia, WA Building Setbacks & Zoning: Structure Height Limits (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified October 2026

Key Facts

Roof projection allowance
18 feet above the district limit, no floor space allowed
MR 7-13 and MR 10-18 tall buildings
Between 35 and 45 feet, with conditions
MR 100 foot rule
Not within 100 feet of the development boundary
RMU sculptured top
Two added stories where permitted height is 60 feet
R 4-8 college facilities
60 feet with a 100 foot setback
Places of worship
Side yard at least fifty percent of building height
Governing section
OMC 18.04.080(I) and Table 4.04

Summary

In the City of Olympia, Washington, residential building height starts with the district limit in Table 4.04 of OMC 18.04.080, and subsection (I) then sets the exceptions: an 18 foot roof projection allowance, a 35 to 45 foot tier in the MR districts, and special rules for RMU, UR and R 4-8 sites.

I. Height. 1. Roof Projections. The following structures may exceed the height limits specified for the district in Table 4.04 by 18 feet, provided that such structures do not contain floor space: roof structures housing elevators, stairways, tanks, ventilating fans or similar equipment required to operate and maintain the building; fire or parapet walls; skylights; towers; flagpoles; chimneys; smoke stacks; wireless masts; television antennas; steeples; and similar structures. Use of this provision must be kept to the minimum amount of space needed to accommodate the allowed roof projection. ... 4. R4-8 District Height Regulations. Existing State Community College Education Facilities. A maximum 60’ building height is allowed with a 100’ setback from adjacent residentially zoned property. ... 7. Tall Buildings in the MR Districts. Buildings between 35 and 45 feet in height are permitted in the MR 7-13 and MR 10-18 districts, subject to compliance with the following requirements:

Full Breakdown

Height in Olympia's residential districts is governed by OMC 18.04.080, which says Table 4.04 identifies the basic standards for each district and that the lettered subsections below it carry the additional regulations. Subsection (I), titled Height, is where the City Council wrote the exceptions that decide how tall a building in Thurston County's capital city can actually be.

Roof projections come first. Elevator and stairway housings, tanks, ventilating fans, fire or parapet walls, skylights, towers, flagpoles, chimneys, smoke stacks, wireless masts, television antennas, steeples and similar structures can rise 18 feet above the district limit, but only if they contain no floor space. The code adds that use of the allowance must be kept to the minimum amount of space needed for the equipment. In the UR district the allowance is further limited by view protection: when the City decides a roof projection could affect a protected landmark view listed in Appendix B of the Land Use and Urban Design chapter of the Comprehensive Plan, the applicant must submit a view analysis showing the protected view from its designated observation point is not blocked or substantially affected.

The MR 7-13 and MR 10-18 districts allow buildings between 35 and 45 feet tall, provided the building stays at least 100 feet from the boundary of the property under development, unless topography, stands of trees or other site features block the view of the upper floors from adjoining residential land, and existing evergreen trees the City deems appropriate are kept to screen neighbors.

In the RMU district, base heights come from Figure 4-5, and where the permitted height is 60 feet a sculptured building top can add two stories if the sculptured floors have at least one-third less gross floor area than the first floor, the roof form is sculptured, the added stories are set back at least eight feet from the street wall, and the roof hides mechanical equipment. Existing State Community College education facilities in the R 4-8 district can reach 60 feet with a 100 foot setback from adjacent residentially zoned property. Places of worship can exceed Table 4.04, except in the State Capitol Group Height District, if the side yard is at least fifty percent of the building's height including spires and towers. Article III height overlay districts, including the Capitol Height District in OMC 18.10.060, add further limits.

Violations & Fines

The excerpted subsection prints no fine schedule. Its consequence is a limit on what Community Planning and Development can approve: roof structures that hold floor space get no 18 foot allowance, an unproven view impact blocks use of the UR roof projection allowance, and an MR building above 35 feet that misses the 100 foot rule or screening condition is not permitted.

Frequently Asked Questions

Where do I find the base height limit for my Olympia residential lot?
OMC 18.04.080 says Table 4.04 identifies the basic standards for each residential district, including maximum building height. Subsection (I) then lists the exceptions to that table. Confirm your parcel's zoning district first, because the exceptions for the MR, RMU, UR and R 4-8 districts differ from one another.
Can a chimney or antenna go above the height limit in Olympia?
Yes. Chimneys, flagpoles, antennas, steeples, skylights and similar structures can exceed the Table 4.04 height by 18 feet if they contain no floor space. The code requires the use of this provision to be kept to the minimum amount of space needed for the allowed roof projection.
Can I build a building up to 45 feet in an MR district in Olympia?
In the MR 7-13 and MR 10-18 districts, buildings between 35 and 45 feet tall are permitted if the building is not within 100 feet of the project boundary, unless site features block visibility, and existing evergreen trees the City deems appropriate are retained where possible for screening.
Do view rules limit roof projections in Olympia?
In the UR district they can. If the City finds a roof projection on a UR site could affect a protected landmark view listed in Appendix B of the Comprehensive Plan's Land Use and Urban Design chapter, the applicant must submit a view analysis before using the roof projection allowance.

Sources & Official References

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