Springfield officials weigh local impacts of state ADU rules under Housing Act of 2024

Springfield City Councilors and municipal staff met March 10 at Springfield City Hall to discuss how the Housing Act of 2024'-era changes to accessory dwelling unit (ADU) rules will affect local zoning, enforcement and neighborhood services.

The meeting assembled planning, housing, building, public works, fire and assessor staff to answer questions about application rules, enforcement, tax treatment and likely neighborhood impacts. City planning staff described the state law's limits on local regulation and said the city so far has approved a single ADU by administrative site-plan review.

Phil Jerome of the Office of Planning and Economic Development summarized the state changes and their local effect. Jerome said the amendment, passed as part of the state's Affordable Homes/Housing Act package, "limits what cities and towns can do to control the use of ADUs" and "can no longer require accessory dwelling units to either be either the principal building or the accessory dwelling unit to be owner occupied." He said ADUs must follow the underlying zoning'including setbacks, height and rear-yard rules'and are limited to either half the gross floor area of the principal dwelling or 900 square feet, whichever is smaller.

Jerome said the city has received many inquiries but only one formal application and approval so far: an owner-occupied home that added a roughly 900-square-foot addition to house a relative after plan revisions and building-department review. Jerome described that application as an example of an owner-occupied use rather than an investor conversion and estimated the addition cost in the tens of thousands of dollars.

Staff and councilors outlined where local authority remains and where it does not. Under current practice, a single ADU is reviewed administratively through the planning office; a second ADU on the same lot would trigger a special permit and a council hearing. Jerome offered to track incoming applications and provide reports to the council; several councilors asked that planning share approved applications or a quarterly summary so elected members can monitor trends.

Departments raised operational concerns. Jerry McCafferty of the Office of Housing warned about large investors and said a statewide study found that "over a 15 year period, 36% of residential properties in Springfield were bought by institutional investors, many of them very large," a pattern he said could interact with ADU rules to change neighborhood ownership patterns. Brian Connors of economic development said ADUs could add housing choices that help employers recruit, but he echoed planning staff that the cost of construction may limit how many homeowners pursue ADUs.

Public works and parking were flagged as likely stress points near colleges and dense neighborhoods. Chris Signoli of the Department of Public Works said on-street parking near college neighborhoods is already a recurring complaint and that additional units could increase on-street parking and related enforcement calls. The planning staff noted the state law permits the city to require only one additional off-street parking space per ADU.

Tax and exempt-use questions came up for institutional owners. Patrick Greenhall of the Office of Assessors said "in short, if a university builds an ADU and it's used for college students, that would be exempt," and added that newly created ADUs generally increase a property's assessed value and would be subject to regular assessment rules when not held in an exempt use. Councilors asked assessors' staff to supply data on institutional holdings and the city'level fiscal implications.

Building, code enforcement and fire officials described safety and enforcement implications. Building and code staff noted smaller lots and setback rules will constrain where detached ADUs are feasible and that typical building-code requirements'for example a second egress or an egress window for sleeping areas in basements'apply when necessary. Commissioner Calvi (Fire Department) warned that "I do have concerns about how accessory dwelling units will create a fire safety issue," citing risks of fire spread, reduced defensible space, egress challenges and longer access routes from streets to backyard units. Staff said code enforcement can condemn unsafe units and that permitting presumes compliance with building, plumbing and septic (Title 5) rules where applicable.

Councilors debated local tools the city could use now (fees, notification, inspections, signage/addresses, and targeted enforcement) and possible state-level requests. Attorney Ken Shea, city solicitor, told the council that departments may petition the council to authorize reasonable fees tied to administrative reviews and that the council could consider home-rule petitions to ask the legislature to grant limited exceptions, such as allowing owner-occupancy requirements for gateway cities or restricting ADU use by institutions.

No formal votes or ordinance changes occurred at the Committee of the Whole. Councilor Allen said he would compile staff notes and work with planning and the law department on next steps, including options for notification of approved applications, additional inspection protocols, fee proposals and whether to pursue a home-rule petition asking the legislature for targeted exceptions.

The meeting closed after roughly an hour and a half of discussion; councilors and staff said they would follow up with written materials and data requests requested during the session.