12/16/2025
Seattle Is Rewriting the Rules for What Can Be Built in Its Neighborhoods
Here’s What the Middle Housing Bill Actually Does
(Post 2 of 2 on next week’s major housing votes)
The term “middle housing” gets used a lot, but many people still aren’t sure what it really means—or how it could change Seattle.
Next week, the City Council will vote on a bill that could reshape what many Seattle neighborhoods look like over time. Not overnight. Not dramatically. But in the steady, incremental way cities grow when the rules actually make sense.
Below is a clear breakdown of what’s included in the Middle Housing (Phase 1) Bill — Council Bill 120993.
(1) Middle Housing Becomes Legal Citywide
This bill would allow housing types such as:
Duplexes
Triplexes
Fourplexes
Rowhomes
Cottage courts
Stacked flats
…in all Neighborhood Residential (NR) zones, which make up the majority of Seattle’s land area.
These are the small-scale homes commonly found in older, established neighborhoods—the types that quietly add residents without fundamentally changing the character of a block.
This isn’t about building towers everywhere.
It’s about bringing back housing types Seattle once allowed—and still needs.
(2) Simplifies the Rules — One NR Zone Instead of Three
Seattle currently has NR-1, NR-2, and NR-3 zones.
This bill consolidates them into a single Neighborhood Residential (NR) zone with consistent development standards.
Clearer rules mean:
Fewer surprises
Faster permitting
More predictable outcomes
Ultimately, this helps align zoning with the intent of the Comprehensive Plan, instead of letting projects get stuck in contradictions within the code.
(3) Technical Cleanup to Make the Code Workable
A substitute version of the bill fixes several technical issues that would otherwise create confusion:
Duplicate amendments removed
Accidentally deleted provisions restored
Incorrect cross-references corrected
Redundancies eliminated
These details matter—they determine whether the code works in practice, not just on paper.
(4) Final Amendments May Still Shape the Details
City Council may still adjust:
Tree and landscaping standards
FAR and lot coverage
Design requirements
Parking rules
Affordability incentives
These choices will determine whether middle housing becomes a real, buildable pathway, or remains mostly theoretical.
Why This Matters
Middle housing creates the types of homes Seattle is missing:
More attainable ownership options
Small-scale rentals that fit within existing neighborhoods
Family-friendly housing close to transit and jobs
Incremental density that supports walkability and local businesses
It offers a path for Seattle to grow with intention instead of by default.
This isn’t a radical change.
It’s a return to the kind of neighborhood fabric that once allowed earlier generations to put down roots here.
Which types of homes do you think Seattle is missing most in your neighborhood?
Michael Lai
CEO/Owner/Developer/Trainer
MLC-Modern Living Destinations
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