March 19, 2026

Items Recommended for Full Council

No items were recommended for full council at this meeting. All three items were kept in committee.

Items Referred to Committee

Affordable Housing Overlay Expansion (26-0204) – Public Hearing Held, Kept in Committee

The Mayor's proposed amendment to Section 8.1 of the Zoning Ordinance would modify the affordable housing overlay to allow taller buildings, remove upper-story stepbacks, and reduce commercial space requirements for 100% affordable housing projects. Director of Planning Daniel Bartman presented four key changes:

• Height increase: Buildings in MR3 through MR6 districts using the overlay could be 8 stories (96–100 feet), up from current limits, to leverage mass timber construction methods that are more economical at 8–18 stories

• 5% dimensional flexibility margin on all standards in the table

• Stepback removal: Upper-story stepbacks eliminated because they cost affordable units or bedrooms on top floors

• Commercial space reduction: On pedestrian streets, only one commercial unit of any size required (instead of full-width commercial frontage), and the 5% arts and creative enterprise (ACE) set-aside exempted — motivated by feedback that affordable housing funders penalize use restrictions

Public commenters from the Art Stays Here Coalition (Amy Bennett, Ethan Dussault) supported the amendment but urged the city to advance long-promised ACE in-lieu payment policies and a cultural trust so affordable housing and arts space don't remain an either/or proposition. Beatriz Gomez Mouacad (Somerville Community Corporation) explained that tax credit financing requires buildings be "as of right" and caps costs at ~$65.7 million total, making flexibility essential. Former Rep. Denise Provo expressed concern about unintended consequences and preferred variances over citywide zoning changes. Residents Meredith Porter and Tori Antonino raised concerns about lot coverage increases, green score reductions, and potential drafting errors in the replacement table.

Written public comment open until March 27 at noon.

Accessory Dwelling Unit Zoning Amendments (26-0234) – Public Hearing Held, Kept in Committee

Sponsored by Councilor Strezo (with co-sponsors Mbah, Davis, and Sait), this amendment would modify ADU regulations to:

• Create two setback categories: existing standards for new construction, and more flexible standards for converting preexisting structures (like carports)

• Increase maximum width and depth to accommodate prefabricated/modular ADU models (40-foot width based on regional manufacturer scan)

• Increase from 1.5 to 2 stories to provide full use of second floor

• Increase maximum floor plate to align with prefab unit sizes

Land Use Analyst Samantha Carr presented the rationale: reducing construction costs through prefab options and unlocking development on irregular or size-constrained lots.

Public comment was mixed. Supporters (Joshua Mitchell, Aaron Weber) praised the flexibility and affordability potential. Critics raised concerns about developers exploiting larger ADU allowances (Bill White, Meredith Porter), loss of green space and backyard habitat (Tori Antonino, Jane Bester), and the need to prevent lot-splitting abuse. Councilor Strezo requested no substantive discussion until mid-May.

Written public comment open until May 1 at noon.

State ADU Law Compliance Discussion (26-0068) – Kept in Committee

Senior Zoning Review Planner Joshua Manion delivered a detailed presentation on how the state's Affordable Homes Act of 2024 conflicts with Somerville's zoning ordinance, creating significant enforcement challenges for "protected use ADUs" (PADUs).

Committee Discussion

The bulk of substantive discussion centered on the state ADU compliance issue. Key points:

Terminology mismatches are pervasive. Somerville's form-based code uses different terms than state law — "backyard cottage" vs. "accessory dwelling unit," "principal building" vs. "principal dwelling," and "affordable dwelling unit" (Somerville's current meaning of "ADU") vs. the state's accessory dwelling unit definition. Director Bartman said a terminology "maintenance amendment" is being prepared to resolve these conflicts quickly.

The state law applies more broadly than initially expected. Staff originally believed it wouldn't apply to Somerville since the city has no "single family residential zoning district." However, the state CMR regulations define this as any district permitting single-family homes, encompassing both the Neighborhood Residential (NR) and Urban Residential (UR) districts.

Most permissive standard creates extreme scenarios. Because the state requires PADUs to access the most permissive dimensional standards applied to any building type in the district, a PADU on a lot with a triple decker could theoretically be three stories tall. If built with fireproof materials on an existing structure, it could sit on the zero lot line. Manion confirmed developers are "kicking the tires" on such configurations, including one building what staff called "an ant farm" — a backyard cottage only 10 feet deep.

"Unreasonableness" standard is vague. The state prohibits municipalities from imposing regulations that result in "complete nullification" of PADU development or impose "excessive costs," but provides no metrics or benchmarks. Staff emphasized the need to develop a locally specific, repeatable performance test for these determinations.

Case-by-case review is required. The Attorney General's office indicated that dimensional requirements must be evaluated per application, meaning the same regulation might be enforceable on one lot but not another. The city solicitor has advised that ISD can make reasonableness determinations with a rational basis but cannot create separate waiver processes.

No comprehensive city proposal is imminent. Director Bartman said the administration is working on potential solutions but needs policy guidance from the council on direction. He noted there are levers available — the city could modify standards for other building types (which would indirectly affect what PADUs can access) or adjust backyard cottage requirements to align with PADU standards.

Chair Ewen-Campen framed this as an open invitation for councilors and the public to propose amendments, emphasizing the importance of working closely with planning staff given the legal complexity. Councilor Clingan requested a side-by-side comparison of local vs. state requirements. Councilor Sait asked about additional public engagement opportunities and was told future public hearings will accompany any new zoning amendments, including resident-submitted proposals expected next month.

What's Next

• Affordable housing overlay: Written comments due March 27; committee will deliberate at a future meeting

• ADU amendments (Strezo): Written comments due May 1; substantive discussion delayed until mid-May at sponsor's request

• State ADU compliance: Administration preparing a terminology maintenance amendment; legal team awaiting Attorney General guidance on open questions

• Resident-submitted ADU amendments: Public hearing anticipated next month, likely in-person/hybrid format

• Side-by-side comparison: Councilor Sait plans to work with Director Bartman on a document comparing current Somerville zoning with state requirements