Massachusetts Apartment Building Insurance: Triple-Deckers, 5+ Units and Mixed-Use

Massachusetts has some of the oldest rental housing in the country. Boston, Cambridge, Somerville, Worcester, Lowell, Lawrence, Fall River and New Bedford are full of wood-frame triple-deckers, brick walk-ups from the early 1900s and mixed-use blocks with a shop on the ground floor and apartments above. Insuring them well means dealing with old wiring and heating systems, the state’s lead paint law, tight urban lots where a fire can spread to the building next door, and, along the coast, wind and flood.

Portsmouth Atlantic Insurance is an independent agency licensed in Massachusetts. We work with 40+ carriers. Most of what we do is personal insurance, but on the commercial side we write one focused area: habitational buildings, meaning apartment buildings and condominium association master policies. This page explains how Massachusetts apartment buildings get insured, what underwriters look at, and how to get a building reviewed.

2-4 units vs. 5+ units: where the line usually falls

The number of units decides what kind of policy a building usually needs.

Two- and three-family homes and triple-deckers

Most carriers insure a two-, three- or four-family rental on a dwelling or landlord policy (often a DP-3 form), which is personal lines. That’s true whether the owner lives in one unit, as in many owner-occupied triple-deckers, or rents out every unit. Our Massachusetts landlord insurance page covers these 1-4 unit buildings in detail, including fair rental value, premises liability and the add-ons most Massachusetts landlords ask about.

Five units and up

At five units, most carriers treat a building as a commercial habitational risk. That typically means a commercial policy that combines property, loss of rents (business income) and general liability. Mixed-use buildings, where there’s a store, office or restaurant on the street level, often land here too, even with fewer than five apartments, because the commercial tenant changes the risk. Underwriters look at:

• Year built and the dates of roof, electrical, plumbing and heating updates
• Construction type (wood frame, joisted masonry, brick) and whether there are sprinklers
• The distance to neighboring buildings, which matters a lot in dense neighborhoods
• Ground-floor commercial tenants and what they do
• Occupancy, vacancy and how the building is managed
• Loss history for the last several years

In Massachusetts, the carriers we work with for 5+ unit habitational buildings include Safety Insurance, Concord Group, Vermont Mutual, Andover Companies and Providence Mutual. Which one fits depends on the building’s age, construction, location, size and loss history. We compare them side by side and explain the differences in plain language.

What a Massachusetts apartment building policy usually covers

• Building coverage at replacement cost, so the structure can be rebuilt with materials of like kind and quality.
• Loss of rents / business income while units can’t be rented after a covered loss. In an older building, repairs and permitting can take months, so the length of this coverage matters.
• General liability for injuries on stairs, porches, walkways, parking areas and other common areas.
• Ordinance or law coverage for the extra cost of bringing a damaged building up to current code.
• Equipment breakdown for boilers, heating systems and electrical panels.
• Water damage and sewer backup, which is usually limited unless you add it.
• Umbrella or excess liability above the base policy. See umbrella insurance.

Coverage forms and exclusions vary by carrier, so the policy itself controls. We’ll walk you through what’s on a quote before you decide.

Massachusetts issues that shape the policy

The lead paint law

Massachusetts has one of the strictest lead laws in the country. Under M.G.L. chapter 111, section 197, when a child under six lives in a unit with dangerous levels of lead in paint, plaster or other accessible materials, the owner must abate or contain those hazards. A new owner of a building where a child under six lives or will live generally has 90 days to bring it into compliance. The state’s Lead Law guidance applies to homes built before 1978, which covers most triple-deckers and walk-ups.

Before a tenancy starts in a pre-1978 unit, owners must also give tenants the state’s Tenant Lead Law Notification and Tenant Certification form and copies of any lead inspection reports and compliance letters (105 CMR 460.725). The state’s notification form also tells owners that rental property owners are expected to maintain liability insurance for potential lead poisoning claims. And the law (M.G.L. c. 111, § 199A) makes it unlawful to refuse to rent to, or to evict, a family with young children because of lead.

For insurance, the key question is how your liability coverage treats lead. Many policies limit or exclude lead-related claims, and the wording differs from carrier to carrier. Keep your deleading letters of compliance or interim control on file, and tell us about them when we quote. They are part of how underwriters see the building.

Source: M.G.L. c. 111, § 197 (Massachusetts Legislature); Learn about Massachusetts Lead Law (Mass.gov); Tenant Lead Law Notification form (Mass.gov)

Older buildings and code upgrades

A 1910 triple-decker or a brick block in Dorchester, Worcester or Lowell may still have knob-and-tube wiring, old fuse panels, steam heat or galvanized pipes. Underwriters want update dates. When a damaged building has to be repaired, the town’s building department will require current code for the repaired work, and that’s where ordinance or law coverage matters. Without it, the cost of required upgrades can fall on the owner.

Dense neighborhoods and fire exposure

In Boston, Somerville, Chelsea and other dense cities, buildings often sit a few feet apart. A fire next door can damage your building, and a fire in yours can damage theirs. Clear egress, working smoke and carbon monoxide detectors, maintained fire escapes and porches, and safe heating equipment all help with underwriting, and tenants are safer for it.

Coastal wind and flood

Buildings on the South Shore, Cape Cod, the Islands, the North Shore and Boston Harbor face nor’easters and hurricanes. Coastal policies often carry a separate wind or named-storm deductible, sometimes a percentage of the building value, and some carriers limit how close to the water they’ll write. Standard property policies exclude flood, so coastal and riverfront buildings need separate flood insurance through the NFIP or a private market. See our flood insurance page.

Mixed-use buildings

Street-level businesses in Massachusetts main-street blocks bring their own risks: cooking, foot traffic and late hours. Your policy should reflect the commercial tenant, and your lease should require the tenant to carry its own liability insurance and name you as an additional insured. Ask your attorney to review the lease language.

Loss of rents: how long is long enough?

In an older Massachusetts city building, a serious fire can mean months of work: insurance adjusting, permits, lead-safe renovation rules for pre-1978 housing, contractor schedules and inspections. Loss of rents coverage is usually written either for a set number of months or as actual loss sustained for a period. Ask how your quote defines it, and whether it includes extra time after repairs finish while units are re-rented. Owners whose rents carry the mortgage usually want this reviewed carefully.

Owner-occupied buildings and moving between policy types

Many Massachusetts investors start by living in one unit of a triple-decker, then buy a larger building. If you move out of an owner-occupied two- or three-family, or add a fifth unit or a storefront, tell us. The right policy can change. Owners who split a two-family into two condo units usually need a different setup again; see condex insurance in Massachusetts.

What landlords can do to make a building easier to insure

• Keep a record of roof, electrical, plumbing and heating updates with dates and invoices
• Replace old fuse panels and remove knob-and-tube wiring where possible
• Service the boiler or furnace every year and keep the records
• Keep lead compliance letters on file for every unit
• Keep porches, stairs and railings in good repair, and clear snow and ice promptly
• Use written leases that require renters insurance
• Install water leak sensors and low-temperature alarms, especially in vacant units

What to send for a review

1. Address, number of units and any commercial space
2. Year built, construction type and update dates
3. Current declarations page and renewal
4. Rent roll or total annual rents
5. 3-5 years of loss history
6. Lead compliance documents, if any

Why owners work with Portsmouth Atlantic Insurance

We’re family-owned, founded in 2005, and hold an A+ BBB rating. We have 1,000+ Google reviews and over 2,000 testimonials, and we’re New Hampshire’s highest-rated agency on Google. We don’t charge any fees. We also help Massachusetts owners with condex insurance for two-unit condominiums, and with personal landlord policies for 1-4 unit rentals.

Own buildings in other states? See our apartment building pages for Connecticut, New Hampshire and Maine.

Frequently asked questions

When does a Massachusetts rental building need a commercial policy?

Most carriers write 1-4 unit rentals, including triple-deckers, on a personal dwelling or landlord policy. At five units and up, or when a building has ground-floor commercial space, carriers usually treat it as a commercial habitational risk.

Does an apartment building policy cover lead paint claims?

It depends on the policy. Many liability policies limit or exclude lead-related claims, and the wording varies by carrier. Massachusetts law (M.G.L. c. 111, § 197) requires owners to abate or contain lead hazards when a child under six lives in the unit, so keep compliance letters on file and ask us how a quote treats lead.

What is ordinance or law coverage and do I need it?

It helps pay the extra cost of bringing a damaged building up to current building code. Older Massachusetts buildings often need wiring, egress or other upgrades during repairs, so it’s worth reviewing on most pre-war buildings.

Is flood covered on my apartment building policy?

No. Standard property policies exclude flood. Coastal and riverfront buildings need a separate NFIP or private flood policy.

Which carriers do you work with for Massachusetts apartment buildings?

For 5+ unit habitational buildings in Massachusetts, the carriers we work with include Safety Insurance, Concord Group, Vermont Mutual, Andover Companies and Providence Mutual. The right fit depends on the building.

Do you charge a fee to review my building?

No. We don’t charge any fees. Send us your current declarations page and building details, or call (603) 431-4020.

Do I need loss of rents coverage?

If rents pay the mortgage, it’s usually important. It helps replace rental income while units can’t be rented after a covered loss, up to the policy’s limits and time period.

Have a building in mind? Request a quote or call us at (603) 431-4020.