Event part of MBAKS’ ongoing engagement on HB 1110 & HB 1337 implementation

MBAKS recently hosted a Middle Housing Forum focusing on state law changes now being implemented that could transform the housing landscape in our region and state.

The March 25 learn-at-lunch style event drew nearly 100 attendees. It was designed to help MBAKS members navigate the coming changes related to middle housing and accessory dwelling units (ADUs) following the adoption of HB 1110 and HB 1337 in 2023.

Panelists included Lilith Vespier, Infill Housing Manager with the Department of Commerce; Adam Weinstein, Director of Planning & Building for the City of Kirkland; and Ryan Gillis, Founder and CEO of Gillis Real Estate. 

In case you missed it, members can find a copy of the presenters’ PowerPoint slides on our Middle Housing & ADU Resources page, which is part of the Resource Library on MBAKS Connect.

Following panel presentations, attendees also heard brief updates from a handful of other city representatives in attendance from Bellevue, Bothell, Kent, and Lynnwood. Many cities in our two counties are in the process of updating local codes to comply with the new middle housing and ADU state laws. Local jurisdictions have until June 30, 2025 to update their codes.

The forum ended with audience Q&A time. During this open discussion, some members reiterated a point Ryan Gillis made during his presentation--the importance of flexibility in local codes so that builders can better respond to market demand. Another member stressed the importance of ensuring floor area ratios and building heights are properly set so that more project types are feasible to build. 

Members also expressed concerns about affordable housing fees that some jurisdictions are adopting alongside middle housing codes, as they will create unnecessary barriers to adding more housing choices.

MBAKS Executive Director Jerry Hall closed by sharing MBAKS’ overarching suggestion for cities implementing middle housing and ADU changes – “keep it simple.” The easier and more cost-effective it is to build middle housing, the more likely it is to be built, and the more attainable it will be for those looking for a place to call home.

Thanks to all who attended the Middle Housing Forum! To keep up with our advocacy work and changes related to middle housing and ADUs, MBAKS members are encouraged to engage with our Builders Councils.

On December 11, 2025, the U.S. House of Representatives passed the National Association of Home Builders (NAHB)-supported Promoting Efficient Review for Modern Infrastructure Today (PERMIT) Act. The legislation focuses on reforming federal permitting requirements under the Clean Water Act with the goal of reducing delays and uncertainty that can slow housing and infrastructure projects.

The vote moves the bill to the U.S. Senate, where lawmakers will continue debating how to balance environmental protections with the need to build homes and infrastructure more efficiently.

What the PERMIT Act Does

The PERMIT Act is intended to streamline environmental permitting and reduce regulatory uncertainty that builders and infrastructure providers say contributes to rising costs and project delays. Key provisions of the bill include:

• Clarifying Clean Water Act jurisdiction by redefining “waters of the United States” and codifying exclusions for features such as waste treatment systems, ephemeral streams, and groundwater.

• Extending and improving nationwide permits to provide longer, more predictable authorization timelines.

• Establishing limits on judicial review timelines to reduce prolonged litigation and project delays.

• Addressing backlogs and inefficiencies in the issuance of jurisdictional determinations.

• Restoring a clearer pathway for states to assume control of their own wetlands permitting programs.

Lawmakers also adopted an NAHB-supported amendment on the House floor that would reduce compensatory mitigation costs through targeted, commonsense reforms. The amendment is intended to maintain environmental protections while improving predictability and supporting economic growth.

Supporters argue these reforms will create regulatory certainty, lower development costs, and help accelerate housing and infrastructure production at a time of acute national need.

What Happens Next

With House passage secured, the PERMIT Act now moves to the U.S. Senate, where its future remains uncertain. The legislation is expected to be part of a broader debate over federal permitting reform, infrastructure delivery, and housing affordability. For homebuilders and policymakers focused on reducing costs and delays, the outcome could have meaningful implications for how quickly new housing and infrastructure projects can move from proposal to construction.

For more details, view the NAHB blog or contact Dylan Sluder, State Government Affairs Manager, at MBAKS via 425.451.7920 for additional information.

By MBAKS Senior Policy Analyst Allison Butcher

The number of single family permits issued in 2018 in the Seattle metro area (King, Snohomish, and Pierce counties) fell 9 percent last year compared to 2017, while multifamily permits increased by 9 percent. These year-end numbers for the three-county region were driven by a decline in single family permits in Snohomish and Pierce counties, which saw 18 percent and 17 percent drops respectively. Likewise, Snohomish and Pierce counties’ multifamily permit numbers rose significantly in 2018 – by 71 percent in Snohomish County and 51 percent in Pierce County. Meanwhile, King County experienced a modest 2 percent increase in single family and a 2 percent drop in multifamily permits in 2018.

The Builder's Bulletin is intended to provide a convenient way to track housing in our market and includes information from the Northwest Multiple Listing Service, State of the Cities Data Systems, Office of Financial Management and the Washington State Employment Security Department.

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