Renting in Cambridge & Somerville: the triple-decker handbook

What makes this market different

Cambridge and Somerville run on the same September clock as Boston, but the housing is different: triple-deckers and two-families, frequently owner-occupied, often owned by someone with exactly one building. You’re as likely to rent from a retired couple on the first floor as from a management company, and that changes what goes wrong. Big landlords use aggressive leases their lawyers have checked. Small landlords use forms downloaded a decade ago, family habits (“we always take a pet deposit”), and terms nobody ever checked against Chapter 186.

The small-landlord lease problem

The most common Cambridge–Somerville lease problems are inherited, not deliberate:

All three clauses fail under M.G.L. c. 186, § 15B: the move-in fee isn’t one of the four permitted charges, automatic deposit forfeiture is a listed violation with treble-damages exposure, and up-front pet deposits aren’t allowed. A friendly conversation usually works here: most small landlords fix the lease when shown the statute. The full money rules are in the deposit guide and the late-fee guide.

Entry and privacy in an owner-occupied building

This is the rule to know when the owner lives one flight down. Sharing a building doesn’t dilute your tenancy: “I was just checking the radiators” is an inspection, and inspections get scheduled. If entries keep happening without notice, put your objection in writing. That turns a boundary problem into a documented unfair-practice problem, which landlords take much more seriously.

Deleading, heat, and other triple-decker basics

• Lead. Nearly all of this housing stock predates 1978. If a child under six will live in the unit, the owner must address lead hazards, and screening out families with young kids to avoid deleading is unlawful discrimination (M.G.L. c. 111, § 197). Ask for the unit’s lead status in writing; deleaded triple-deckers carry compliance letters.
• Heat. Owner’s duty, September 15–May 31: at least 68°F from 7 a.m. to 11 p.m. and 64°F overnight (105 CMR 410.180). Drafty third-floor units with old radiators are what this rule is for.
• Utilities in writing. The owner pays for electricity, gas and heating oil unless your unit has its own meter or its own oil tank and a written agreement makes the bill yours (105 CMR 410.200, 410.210). A handshake “tenants split the oil” arrangement meets neither condition.

Tenancy-at-will: the local default you should understand

A surprising share of Cambridge–Somerville arrangements roll month-to-month, especially in owner-occupied buildings. That’s a real tenancy with real protections: ending it takes written notice of at least one full rental period or 30 days, whichever is longer (M.G.L. c. 186, § 12), every deposit and fee rule applies unchanged, and retaliation for reporting code problems is barred. The flexibility cuts both ways, since you can leave on the same notice. But “we don’t do leases” never means you don’t have tenant rights.