HB 1110 Explained for Seattle Real Estate | What Washington’s Middle Housing Bill Means for Homeowners, Buyers & Investors
Washington’s House Bill 1110 (HB 1110), also called the Middle Housing Bill, is one of the most important housing reforms in decades. It requires cities across the state to allow duplexes, triplexes, fourplexes, and even sixplexes in areas that were once zoned exclusively for single-family homes.
The goal is to increase housing supply and affordability, but for homeowners, buyers, and investors, this law has massive implications. It changes how land is valued, what can be built on residential lots, and how neighborhoods in Seattle, Bellevue, Redmond, Kirkland, Sammamish, Issaquah, Shoreline, and other areas will look over the next decade.
In this video, I explain what HB 1110 means in real estate terms. Whether you own property, want to buy, or are looking for investment opportunities, HB 1110 will reshape the housing market in Seattle and the Eastside.
What HB 1110 is and why it matters
Why Seattle homes are selling for so much, with land value and development potential driving prices
How lot size and square footage allowances affect what can be built
Impact on homeowners: how to know what your land is worth today
Impact on buyers: how new housing options open access to competitive neighborhoods
Impact on investors: how HB 1110 creates small-scale multi-family opportunities
Real-world examples of how values change under new zoning rules
Real-World Examples
A 5,000 square foot Seattle lot that once held one house may now support a triplex or fourplex.
A 4,000 square foot lot in Ballard or Ravenna may now qualify for two or three units.
Larger 6,000–8,000 square foot lots in Bellevue or Redmond could support fourplexes or sixplexes, especially near transit corridors.
Instead of one $1.2 million home, you may see four townhomes priced at $700,000–$800,000 each, opening the door to more buyers and creating more profit potential for developers.
This is why traditional homes are selling for record-high prices. Buyers and developers are paying not just for the house, but for the land and its redevelopment potential.
Your property may now be worth more than you realize. The value of your land has changed under HB 1110 because redevelopment potential adds to what buyers, investors, and builders are willing to pay. Knowing the true value of your home and land is critical before selling or planning future projects.
For buyers, HB 1110 means new opportunities to enter neighborhoods that were once out of reach. Instead of having to purchase a million-dollar single-family home, you may be able to buy into a multi-unit development at a lower price point while still living in the area you want.
For investors, HB 1110 is a game-changer. The ability to build multiple units on standard residential lots creates opportunities for:
Multi-family rentals with duplexes, triplexes, and fourplexes
Long-term land appreciation in Seattle and Eastside cities
Small-scale development projects that were not possible before
I have already worked with clients who are taking advantage of these changes to position themselves for long-term success.
Cities Impacted by HB 1110
Seattle neighborhoods: Ballard, Green Lake, Ravenna, Beacon Hill, Capitol Hill, West Seattle, Rainier Valley
Eastside cities: Bellevue, Kirkland, Redmond, Sammamish, Issaquah
Surrounding markets: Shoreline, Renton, Bothell, Maple Valley, Lake Stevens, Snoqualmie, Auburn
Every city is required to implement HB 1110, but the details will vary. The baseline is clear: more units allowed per lot, less restrictive zoning, and higher land values.
The Bigger Picture
HB 1110 is not just about housing supply. It is about reshaping Washington’s real estate market. Homeowners may see significant increases in property value, buyers gain new pathways into competitive neighborhoods, and investors have the chance to create wealth through multi-family housing.
About Me
I am David Baginskiy, a Seattle-area real estate broker. I specialize in helping homeowners sell for maximum value, guiding buyers through competitive markets, and advising investors on long-term strategies. With a background in marketing and construction, I understand how zoning laws and land value shifts directly impact real estate decisions.
Contact Me
If you want to know how HB 1110 affects your home, your buying options, or your investment plans, reach out today:
Call: 206-939-8032
Email: [email protected]
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