Housing · Warranty of habitability
Warranty of Habitability in Massachusetts
What a landlord in Massachusetts must keep livable, and your remedy when they do not: whether you can withhold or escrow rent, or must use another route. This is the landlord duty behind the repair-and-deduct remedy. Cited to the statute.
What the warranty of habitability covers in Massachusetts
What the landlord must maintain, whether you can withhold or escrow rent, and the limits on the remedy.
| What the law says | What it means |
|---|---|
| A warranty of habitability recognized by the courts | Boston Housing Authority v. Hemingway read an implied warranty of habitability into residential leases. The specific standards that fill in the warranty come from the State Sanitary Code, 105 CMR 410, "Minimum Standards of Fitness for Human Habitation," which runs directly against the owner. |
| The most detailed heat rule in the country | Under 105 CMR 410.180 the owner must provide heat in every habitable room and every room with a toilet, shower or bathtub from September 15 through May 31, at least 68°F between 7:00 A.M. and 11:00 P.M. and at least 64°F between 11:01 P.M. and 6:59 A.M. The heating system may not push any room above 78°F. A board of health may shift the season’s edges by posting notice on the municipality’s website. |
| Heating equipment standards | Section 410.160 requires the owner to provide and maintain a heating system able to reach those temperatures, and it says a fireplace, a wood or pellet stove, and a portable electric space heater do not satisfy the requirement. Several unvented and portable heater types are prohibited outright. |
| Where it does not apply | What it means |
|---|---|
| The season can be adjusted by the board of health | Section 410.180(D) lets a local board of health modify the heating season, ending it no earlier than May 15 or delaying its start no later than September 30, by posting notice on the municipality’s website. That posting route replaced the old requirement of a formal variance. |
| The old dates are superseded | Many guides, and even a stale state guidance page, still cite 105 CMR 410.201 and a season of September 15 to June 15. The State Sanitary Code was reorganized effective May 12, 2023. The temperature rule moved to 410.180 and the season now ends about two weeks earlier, on May 31. Rely on the current rule, not the old citation. |
| Repair-and-deduct is tightly gated | Under G.L. c. 111, s. 127L a tenant may repair or have repaired the conditions constituting violations and deduct up to four months’ rent in any twelve-month period, but only after the violation is certified by a board of health, a code agency or a court and written notice is given, and the owner then fails to act within the time the statute allows. |
What you can do right now
Concrete, neutral steps when a rental in Massachusetts is not being kept livable. This is legal information, not legal advice.
- Get the violation certified
The repair-and-deduct remedy in G.L. c. 111, s. 127L runs through an inspection. Ask your local board of health or code enforcement office to inspect and certify the violation, which is the trigger the statute requires.
- Put the defect in writing to the owner
Give the owner written notice of the certified violation and keep a dated copy. Written notice plus the certification are what start the process, so document both.
- Track the temperatures during heating season
From September 15 through May 31, the unit must reach 68°F by day and 64°F overnight. Log readings with a thermometer at times and places that match 105 CMR 410.180 if you think the heat falls short.
- Get Massachusetts tenant help before deducting
Repair-and-deduct has strict conditions and a four-month cap. MassLegalHelp explains the certification and notice steps so you do not risk your tenancy by deducting the wrong way.
Withholding rent the wrong way can risk eviction, so a legal aid office can confirm the exact notice and escrow steps before you stop paying.
→ MassLegalHelp (Housing)This is general legal information, not legal advice. The notice, the escrow account, and what counts as uninhabitable all matter, so confirm your situation against the statute before withholding rent.
What renters in Massachusetts get wrong about habitability
Massachusetts has the most detailed heat rule in the country, and it is easy to get wrong because the commonly-cited version is out of date. The warranty of habitability itself is case law, from Boston Housing Authority v. Hemingway, but the content of the standard is the State Sanitary Code at 105 CMR 410, which runs directly against the owner. The heat rule, current at 105 CMR 410.180, requires the owner to provide heat in every habitable room and bathroom from September 15 through May 31, at least 68°F between 7:00 A.M. and 11:00 P.M. and at least 64°F overnight, with a ceiling of 78°F. Almost every guide, and even a stale state guidance page, still cites the old 410.201 and a season of September 15 to June 15. The Sanitary Code was reorganized effective May 12, 2023: the rule moved to 410.180 and the season now ends about two weeks earlier, on May 31, and a board of health can shift the edges by a website posting rather than a formal variance. The tenant remedy is repair-and-deduct under G.L. c. 111, s. 127L, capped at four months’ rent in a twelve-month period and gated behind an official certification of the violation. Nothing in the code requires air conditioning.
Common questions
Does Massachusetts have a warranty of habitability?
Yes. Boston Housing Authority v. Hemingway read an implied warranty of habitability into residential leases, and the specific standards come from the State Sanitary Code, 105 CMR 410. The code runs directly against the owner and covers heat, water, sanitation and structural fitness.
What is the required temperature in a Massachusetts apartment?
Under the current rule, 105 CMR 410.180, the owner must heat every habitable room and bathroom from September 15 through May 31 to at least 68°F between 7:00 A.M. and 11:00 P.M. and at least 64°F overnight, and no room may exceed 78°F. The older citation to 410.201 and a June 15 end date is superseded.
Can I repair and deduct in Massachusetts?
Yes, under G.L. c. 111, s. 127L, up to four months’ rent in any twelve-month period, but only after a board of health, code agency or court certifies the violation and you give the owner written notice and the owner then fails to act. The tenant’s right under the section cannot be waived by a lease.
Does a Massachusetts landlord have to provide air conditioning?
No. Nothing in 105 CMR 410 requires air conditioning or cooling. The code addresses ventilation and treats air conditioners as optional owner-installed equipment. Massachusetts regulates heat in great detail but does not regulate cooling.
Not legal advicePlainStatute provides plain-language summaries of public law for general information only. This is not legal advice. Statutes change; always confirm current requirements with the official source linked above before acting.