Apartment building insurance in Seattle

What underwriters ask about a Seattle apartment building

• Unreinforced masonryThe Seattle Department of Construction and Inspections (SDCI) keeps a public database of buildings it has identified as URMs and wrote to their owners in March 2016. The first thing I check for an older brick building is whether it is on that list.
• Retrofit statusA retrofit standard was adopted in late 2024 as a voluntary measure. A building that meets it can be recorded as retrofitted in the city’s database.
• Soil and slopeAbout 15 percent of the city’s area is soil prone to ground failure in an earthquake, and 8.4 percent of its surface is identified as slide-prone.
• RRIOAll rental property owners must register with the city, and registered properties are inspected at least once every 5 to 10 years.

The coverage parts are the ones every apartment owner buys (how an apartment program is put together). The Seattle part is the list above.

Unreinforced masonry and where the retrofit rule stands

SDCI states that Seattle has an 86 percent chance of a damaging earthquake in the next 50 years and that a future mandatory ordinance would cover more than 1,100 collapse-hazard buildings in which over 22,000 people live or work. A city-commissioned study found these buildings concentrated in Pioneer Square, the International District, SoDo and Capitol Hill, areas expected to take some of the strongest shaking.

As of November 2026 the position, in SDCI’s own words, is that compliance is voluntary and a mandatory ordinance will be adopted once supportive resources are available. The city’s minimum standard consists of bracing parapets and strengthening the connections between roof, walls and floors, and it includes a reduced Alternate Method for qualifying buildings. SDCI is clear that this does not bring a building up to the code for new construction.

The proposed deadlines run from the date a mandate is adopted: 7 years for critical buildings such as schools, 10 years for high-vulnerability buildings (over three stories in poor soil areas, or with large assembly spaces), and 13 years for the rest. For insurance, that turns into three questions:

• Is the address in the URM database, and what vulnerability class does it show?
• Has any seismic work been done, with permits and an engineer’s report you can hand over?
• Is the building recorded as retrofitted, or is a retrofit planned? Work under way may need builder’s risk.

Rebuilding a damaged older building means meeting today’s code, which is what ordinance or law coverage is for.

Earthquake, soft ground and slopes

Seattle’s Office of Emergency Management describes three earthquake sources. The Seattle Fault Zone runs east to west through the middle of the city and, in the city’s assessment, poses the greatest risk to Seattle; a quake on it could be as large as magnitude 7.5. Deep earthquakes like the magnitude 6.8 Nisqually event of 2001 are estimated to recur about every 30 to 50 years. A Cascadia megathrust earthquake could exceed magnitude 9, with shaking the city calls violent and prolonged.

• Liquefiable soilThe city names the Duwamish Valley, Interbay and Rainier Valley as vulnerable to ground failure because of their liquefiable soils.
• LandslidesSlides happen frequently in winter and early spring, when soils are saturated.
• Water after a quakeThe city says a large Seattle Fault earthquake could send a tsunami onto the shoreline within minutes. The state insurance commissioner’s consumer guide warns that earthquake insurance might not cover flood or tsunami even when an earthquake causes it.

Standard commercial property policies typically exclude earth movement, which takes in both earthquake shaking and landslide. Earthquake for an apartment building is bought separately, as its own policy or a difference-in-conditions policy. Expect a percentage deductible: the commissioner’s consumer guide puts typical earthquake deductibles at 10 to 25 percent of the building limit, and it notes that an insurer may want to inspect first. Landslide is harder to buy than earthquake, so a slope behind the building is something to tell me about at the start. Water from outside the building is a flood insurance question.

Loss of rents and what the rent rules do to it

Loss of rents coverage pays the rent you were collecting while units are being repaired after a covered loss. Three sets of rules shape how much of it a Seattle owner needs:

• State rent cap. Under RCW 59.18.700 a landlord may not raise rent during the first 12 months of a tenancy, or by more than seven percent plus inflation, capped at ten percent, in any 12-month period; exemptions are listed in a separate section. The Department of Commerce set the 2026 maximum at 9.683 percent. The same statute lets a landlord set the rent at any amount after a tenant vacates and the tenancy ends.
• Seattle notice rules. The city requires 180 days’ written notice of any housing cost increase. An increase of 10 percent or more in 12 months triggers the Economic Displacement Relocation Assistance notice, and a household at or below 80 percent of area median income that moves out can apply for assistance equal to three months of housing costs.
• Displaced tenants. State law (RCW 59.18.085) makes a landlord who knew or should have known of code violations pay relocation assistance when an agency condemns a dwelling or orders it vacated. It carves out conditions arising from a natural disaster such as an earthquake or windstorm, and conditions caused by a tenant’s or third party’s illegal conduct without the landlord’s knowledge. Seattle separately requires relocation assistance when a unit is vacated and closed for an emergency condition within the landlord’s control.

The practical point: size the limit to the real rent roll and to how long a Seattle rebuild takes, and do not count on a policy to pay relocation money that arises from deferred maintenance. How income coverage works.

Planned work has its own rule. If tenants must move because a building will be demolished or substantially renovated, the Tenant Relocation Assistance Ordinance requires a Tenant Relocation License before the city issues permits, and low-income renters receive assistance split evenly between the owner and the city. Build that into the schedule for a retrofit or a re-pipe.

Inspections, evictions and liability

RRIO creates a record that follows the building. SDCI selects a property for inspection once in the first five years after registration, with a 10 percent chance of a second selection in the following five. Owners of multi-unit properties may have every unit inspected or a 20 percent sample, by a city inspector or a qualified private one, and get at least 60 days’ notice.

Registration also matters for possession. Under the Just Cause Eviction Ordinance, a landlord ending a tenancy must state one of 16 approved reasons and be in compliance with RRIO. A lapsed registration is therefore both a code problem and a legal one, and liability underwriters ask about open violations for that reason.

The claims themselves are familiar ones: falls on wet stairs and walkways, railings, decks, and injuries in common areas. Carry a primary liability limit that fits the unit count and put a commercial umbrella over it.

Rain, building envelopes and older systems

Water is the everyday loss in this climate. Property policies generally respond to sudden events such as a burst pipe, not to seepage or rot that developed over seasons, so underwriters ask how the roof, windows, decks and siding have been maintained.

Washington’s water-intrusion statute is known mostly from condominium disputes, but it is not limited to them. RCW 64.55 defines a multiunit residential building as one with more than two attached dwelling units and requires building enclosure design documents to be submitted for new construction or rehabilitative construction. It excludes, among others, buildings of 12 or fewer units that are no more than two stories, and buildings held under one ownership with a recorded covenant prohibiting sale of the units. If your rental was built or re-clad under that chapter, the enclosure documents are worth keeping with the insurance file.

• Roof and envelope: age, type, last replacement, and any history of leaks at decks or windows.
• Plumbing: supply and drain line material and the year of any re-pipe.
• Boilers and water heaters: age and service records; equipment breakdown coverage fills a gap property coverage leaves.

What to send me

• Address, year built, stories and unit count, with construction type and any commercial space.
• URM status: whether the address is in the SDCI database, its vulnerability class, and any retrofit permits or engineering reports.
• Site notes: whether the lot is mapped as liquefaction-prone or slide-prone, and any retaining walls or past slope movement.
• RRIO registration and the latest inspection result, plus any open notices of violation.
• The current rent roll and a recent operating statement.
• Current declarations pages for property, earthquake, liability and umbrella.
• Five years of loss runs, with what was repaired after each claim.
• System updates with years: roof, envelope, plumbing, electrical and heating.

Common questions

General information about insuring apartment buildings in the City of Seattle as of November 2026, not legal advice. The URM retrofit program, RRIO, relocation and rent rules are set by city ordinance and Washington statute and change; confirm your building’s status with SDCI and your obligations to tenants with counsel. Coverage depends on underwriting and the terms, conditions and exclusions of the policy actually issued.