What can be built on a typical Whittier Heights side street this fall? Most of the coverage about 15th Ave NW points to the rezone that just slipped into 2027. For most residential lots, though, the answer has been the same since January 21, 2026: at least four homes, or six near a major transit stop.
That date matters more to a Whittier buyer or owner than the delay does. The paused rezone would add apartment-scale height inside a narrow Whittier Neighborhood Center around 15th Ave NW. Every residential lot in the neighborhood, including the side streets around Kirke Park, has been under new rules since January. So far they have produced little visible construction, and the reasons are permit intake, review times and fees. Zoning is not what's holding it back.
What a Whittier lot allows as of this fall
Seattle adopted its Neighborhood Residential update as Council Bill 120993, Ordinance 127376, on December 16, 2025. The city's One Seattle Plan zoning hub confirms the NR rules took effect January 21, 2026. That page separates them from the Centers and Corridors legislation that is now paused.
Under the city's summary of the adopted NR standards, a lot may hold whichever of these is greatest:
- One unit per 1,250 square feet for attached or detached homes, or one per 600 square feet for stacked flats
- Four units
- Six units if the lot is within a quarter mile of a major transit stop, or if at least two units are affordable
These counts include accessory units. On lots with environmentally critical areas, such as steep slopes, the allowed density shrinks in proportion to how much of the lot those areas cover.
Building size follows density. Floor area ratio runs from 0.6 at the lowest densities to 1.6 at one unit per 1,600 square feet or more. Stacked flats at that density get 1.8, or 2.0 when a Tier 1 tree is kept, two Tier 2 trees are kept, or the site reaches a Green Factor score of 0.6. Height starts at 32 feet plus pitched-roof allowances. It can reach 42 feet if the site meets a tree-canopy condition, keeps a Tier 2 tree, has three or more principal units with a front setback of at least 20 feet, or pairs stacked units with a 0.6 Green Factor score.
In practice, a Whittier Heights bungalow on a standard lot sits under fourplex rules today. A lot close enough to a RapidRide stop on 15th Ave NW may fall under sixplex rules. The SDCI Property Information Map shows which lots are inside the quarter-mile transit radius.
What the paused rezone would add on top
The Phase 2 Centers and Corridors legislation went to Council in January 2026. My Ballard reported in April that it targeted 15th Ave NW between NW 65th St and NW 77th St for added housing capacity. The city's January 2026 director's report says the Whittier Neighborhood Center boundary was redrawn during planning. It changed from a broad circle around one bus rapid transit stop to a narrower linear area around three stops.
The proposed D6 map shows the scale of what's on hold.
| Area | Zoning in effect now | Proposed under paused Phase 2 |
|---|---|---|
| Most residential streets in the center | NR3, at least 4 units or 6 near transit, 32 to 42 ft | LR3, five stories, 52 ft, 2.5 FAR |
| Some residential blocks near the edges | NR3 | LR1 |
| Commercial strip on 15th Ave NW | NC2-55 and NC2P-55 | NC2-65 and NC2P-65 |
The LR3 height and FAR figures come from the director's report. The parcel-level boundary needs a direct look, because the mapped area is narrow and doesn't cover every 15th Ave NW address. The city's interactive map of proposed rezones shows which side of the line a given lot falls on.
Outside the center boundary, Whittier stays NR3 either way, and the delay changes nothing for those lots.
Why the pause runs longer than one season
Council started its review in April and stopped in July because of an ongoing appeal of the environmental analysis. The city now expects review to restart in early 2027.
The Urbanist reported on October 12 that the state Growth Management Hearings Board found no evidence for the appellants' claims about stormwater, tree canopy and other impacts. The board still ruled that the city had to study "maximum possible development," a broader scenario than the "maximum likely development" it had analyzed. The city has until September 9, 2027 to finish that work, and a compliance hearing is scheduled for later that fall. Council can't approve the resulting rezones until the board signs off.
In the same report, Michael Hubner, the Office of Planning and Community Development's long range planning manager, described the city's approach this way:
"We're certainly not bringing forward a new Comp Plan proposal, or any amendments to the plan based on this decision."
That means the map most likely to come back in 2027 looks like the one already published. The neighborhood group Friends of Whittier Heights reads the proposal as moving residential streets inside the center to LR3. It has pushed to put more density on 15th Ave NW in exchange for lower zoning on the side streets. In an April 24, 2026 update to its petition, the group wrote that neighbors had spoken with Councilmember Dan Strauss. According to the group, they came away believing that kind of swap might be an option. The extra year leaves time for that conversation to continue. The plan itself is not being reopened.
Permission has run ahead of construction
If at least four units have been legal on most Whittier lots since January, you might expect cranes. Citywide figures show a slowdown, and three pressures account for it.
- Fewer projects entering the pipeline. The Urbanist reported on August 26 that permit applications submitted from January through June 2026 covered just 1,137 new units in Seattle. That's a 30 percent drop from the same period in 2025, which had already fallen 38 percent.
- Review times above the city's own goal. SDCI's construction permit performance page lists a 117-day 75th percentile review time for its "Middle Housing" category, against a 60-day goal. That category includes small stacked flats up to six units, townhouses and rowhouses.
- Rising permit costs. The Urbanist's October 1 coverage of the city's latest fee increases worked through a hypothetical four-unit townhouse. Its permit costs rise from $12,214 in 2025 to $15,953 in 2027.
The city publishes no count of fourplexes or stacked-flat projects filed specifically under the new NR rules. SDCI's housing permit dashboard tracks units by type and zone. It also warns that application-stage counts for the most recent two quarters are likely undercounts.
On a Whittier street, the zoning change shows up as a possibility attached to every lot. Few new buildings have appeared yet.
What the Q3 numbers say about existing homes
If small builders were competing hard for lots under the new rules, prices in the surrounding market area would likely show it. Windermere's Q3 2026 Seattle market report shows a steady market with thinner volume instead. In Ballard and Green Lake, the market area that includes Whittier Heights, the Q3 median sale price was $950,000, up 1 percent from a year earlier. Sales fell 14 percent to 394, and price per square foot slipped 2 percent to $540.
Well-priced homes still moved quickly. In the same Q3 2026 data, 57 percent of Ballard and Green Lake sales closed at or above list, and half sold in their first 10 days. Across Seattle, Windermere put Q3 absorption at 3.6 months, with new listings up 15 percent and sales down 13 percent.
Supply is growing at the regional level too. The Northwest MLS reported on October 6 that King County's September 2026 median price held at $850,000, with 4.70 months of inventory. Active listings across the NWMLS region reached 24,965, up 24.5 percent from a year earlier.
Taken together, these figures describe a resale market where buyers have more choice and prices have held. A buyer can usually still treat a Whittier side-street house as a house, even though its lot is zoned for more. For an owner, that unused allowance is part of the property's story, but Q3 2026 pricing doesn't show a premium for it. For a broader look at the extra-unit route, our ADU versus duplex comparison for Whittier covers that decision from the owner's side.
FAQ
Did the delay roll back the four-unit rules?
No. The city's zoning hub lists the Neighborhood Residential update as in effect since January 21, 2026. Only the Centers and Corridors legislation is paused.
When could the 15th Ave NW rezone actually pass?
The city expects Council to restart review in early 2027. Final approval still waits on the hearings board, whose compliance hearing follows the September 9, 2027 deadline for the added analysis.
How do I find out what applies to a specific address?
Check the SDCI Property Information Map for the transit radius, and the city's interactive rezone map for the proposed center boundary. The adopted ordinance has the full text of the NR rules.
This post is general information about published zoning rules, not legal, tax or financial advice. Confirm what applies to your own property with SDCI, a land use attorney or another qualified professional before acting on it.
If you own in Whittier Heights and want to know how your lot's zoning and the Q3 numbers bear on your home's value, Theodora Cornelia Homes can walk through it with you. Our free home valuation is a good place to start.
