If you own a house in Bellevue this year, you've probably heard some version of the same headline: the state legislature passed a law that lets homeowners build a duplex, a fourplex, or an accessory unit on lots that used to allow exactly one house. Does that mean your street is about to look different? For most of Bellevue, the honest answer is "eventually, maybe." For Somerset, the answer is already posted on the community association's own website, and it isn't the one the headline implies.
Somerset's board has told residents plainly that the city's middle-housing zoning changes do not override the neighborhood's CC&Rs, and that most lot divisions still need approval from Somerset's own Covenant Review Committee before anyone breaks ground. The state can rewrite the zoning code. It cannot rewrite a private covenant that a homeowners association still enforces.
What the state actually changed
Washington's middle-housing law, HB 1110, requires cities above certain population thresholds to allow more housing types on lots that used to be zoned for one detached home. Bellevue falls into the law's Tier 2 category alongside Seattle, which means the city has to permit at least four units on most residential lots, and up to six where a lot sits within a quarter mile of a major transit stop.
That transit radius got a lot bigger this year. The East Link 2 Line opened full cross-lake light rail service on March 28, 2026, and that added stations mean a meaningfully larger share of Bellevue parcels now fall inside the quarter-mile zone that triggers the higher unit count. In plain terms, a lot that couldn't support more than a single house two years ago might now be zoned for four units, or six if it sits near a station.
That's the part of the story most coverage stops at. The part that matters if you're comparing neighborhoods is what happens when a lot sits inside both the new zoning and an older, private set of rules that the state law was never written to touch.
The neighborhood that filed its own objection
Somerset is a hillside neighborhood in southeast Bellevue, established long before HB 1110 existed, and its CC&Rs are older than the current zoning debate by decades. City zoning and homeowners association covenants operate on separate legal tracks. Zoning tells you what the city will permit. Covenants tell you what your neighbors, through the association, will actually let you build. When the two conflict, the covenant doesn't get preempted just because the legislature changed the zoning code. It stays in force until the association itself amends it, which for most HOAs requires a supermajority vote of the membership.
Somerset's board has been direct about this on its own site: the community remains a single-family neighborhood under its covenants, and most divisions still require Covenant Review Committee sign-off regardless of what the city now allows by right. For a homeowner who read the HB 1110 coverage and started pricing out a lot split or a detached ADU, that's the actual first phone call to make, not a permit office, but the HOA's covenant committee.
For a buyer evaluating a Somerset lot as a future redevelopment play, the same logic runs the other way. The zoning may say six units are possible. The covenant may say the answer is still no. Both can be true on the same parcel.
Bridle Trails got there a different way
Bridle Trails didn't need a homeowners association to keep its density low. The city did it directly, through the neighborhood's own subarea plan, which zones most of the area R-1, one unit per acre, and states as adopted policy that the goal is to protect the neighborhood from encroachment by more intense uses. Bridle Trails State Park sits at the center of it, 482 forested acres with 28 miles of trails shared by hikers and the equestrian community the neighborhood was built around, and the surrounding subarea plan was written specifically to keep the area's rural, tree-lined, horse-friendly character intact.
That's a public zoning protection, adopted by the city, rather than a private covenant enforced by a homeowners board. It's a different mechanism than Somerset's, and it raises a different question for anyone looking at a Bridle Trails lot: whether the city's own subarea plan policies limit how far the new middle-housing minimums actually reach on a given parcel, separate from anything a private association would have to approve. That's worth confirming with the city's community development department on a lot-by-lot basis before assuming either the old rural character or the new higher unit count is the default.
Three ways a lot can be protected from density, and what each one means right now
| Neighborhood | What actually limits new units | What that means for a 2026 buyer or investor |
|---|---|---|
| Somerset | Private CC&Rs enforced by the Covenant Review Committee, independent of city zoning | New city zoning may allow more units, but the HOA can still say no on a case-by-case basis |
| Bridle Trails | City-adopted subarea plan zoning (R-1, one unit per acre) written to preserve equestrian and rural character | Density limits come from the city itself, so confirm with Bellevue's planning department how the subarea plan interacts with HB 1110 minimums on a specific lot |
| Downtown Bellevue condos | No comparable covenant or subarea restriction; these are already dense, multi-unit buildings | This segment is where new inventory has actually been landing, and it's the one showing real buyer leverage this year |
| West Bellevue and Clyde Hill waterfront lots | Shoreline regulations and large-lot patterns rather than an HOA vote | Redevelopment pressure here runs into environmental and shoreline permitting well before it runs into a covenant committee |
Why this matters more than the median
Bellevue's headline price numbers already hint that this is not one market. Tracked closings over the six months ending August 2026 put the citywide median sold price at $1,443,888, but the middle half of all those sales closed anywhere between $848,250 and $2,095,000. That's the spread a single median can't show you, and it's wide enough that two houses selling the same week, both "at the Bellevue median," can be nothing alike.
Property type explains part of that spread. Condos have been running closer to $680,000 on average this year, with inventory growing faster than any other segment and giving buyers more room to negotiate. Detached single-family homes have been averaging closer to $1.23 million, a segment where inventory has stayed tighter. Citywide months of supply climbed to somewhere between 4.3 and 5.5 by mid-2026, which is edging toward a balanced market overall, but that average blends a condo market that's already loosened with single-family neighborhoods, especially covenant-protected or subarea-protected ones, that haven't loosened nearly as much.
The zoning and covenant question adds a second layer on top of property type. Two single-family lots priced identically today can carry very different redevelopment potential depending on whether a private HOA or a city subarea plan sits on top of the new zoning math. If you're comparing a Somerset lot to a similarly priced lot in a neighborhood with no HOA and no subarea overlay, you're not comparing two versions of the same asset. You're comparing a legacy single-family property to something that may function, on paper, as a small multi-unit site.
Financing adds one more practical wrinkle. King County's 2026 conforming loan limit for a single-family home is $1,063,750, and a meaningful share of Bellevue's single-family inventory, especially in Somerset, Bridle Trails, and the West Bellevue tier, sells above that number, which means jumbo financing and its documentation requirements come standard for a lot of buyers here rather than the exception.
What to check before you assume a lot can be redeveloped
Before treating any Bellevue single-family lot as a potential duplex, fourplex, or ADU site under the new zoning, it's worth confirming three separate things rather than one. First, whether the property is inside an active homeowners association, and if so, whether the CC&Rs address lot division or additional units at all, since some associations never anticipated the question and others, like Somerset, have already answered it. Second, whether the property falls inside a city-adopted subarea plan with its own density language, the way Bridle Trails does, since that's a public zoning layer that operates independently of any HOA. Third, whether the specific parcel sits inside the quarter-mile radius of a light rail stop now that the East Link 2 Line is running full service, since that radius is what moves a lot from a four-unit allowance to a six-unit one under state law.
None of that shows up in a Zestimate or a listing sheet. It shows up in a covenant document, a subarea plan map, and a transit radius that changed in March. Checking all three before making an offer, or before pricing a listing based on its theoretical density, is the difference between an accurate valuation and a guess.
If you're weighing a Bellevue lot against its redevelopment potential, or trying to figure out whether a neighborhood's HOA has already settled the question a new buyer would ask, that's exactly the kind of conversation worth having before an offer goes in rather than after. Tarek Moghrabi Realty Group works these Bellevue neighborhood questions daily and can walk through what a specific covenant, subarea plan, or transit radius actually means for a specific address.
