Understand Chelsea before you commit to an address
Chelsea is 40,000 people in under two square miles across the creek from East Boston, and it does the region's unglamorous work: the fuel terminals that supply Logan, the produce market that supplies the restaurants, and the road salt for most of eastern Massachusetts. Figures are the same two indexes measured the same way in all 24 municipalities here, on Massachusetts rules including annual full-value assessment. It is one of the nine municipalities here that takes a flat slab off an owner-occupier's assessed value, $279,066 of it, so the rate Chelsea publishes and the rate you would pay are different numbers. It fronts the ocean or Boston Harbor, which is what the insurance figure here is banded on, and flood is a separate policy that covers what homeowners insurance does not.
The cost of living in Chelsea, and what a home costs
Two calculators on Massachusetts's own rules: monthly compounding and the month private mortgage insurance stops, and the closing costs this state actually charges.
Rent or buy in Chelsea
Whether buying here beats renting, and the year it turns over. The residential exemption only reaches an owner who lives in the building, so it belongs on the buy side of this comparison and nowhere else.
Mortgage calculator
Monthly compounding, the 30-year fixed loan, the private mortgage insurance a low down payment triggers, and a closing where Massachusetts charges the buyer no transfer tax and no tax on the mortgage at all.
Then work out whether Chelsea is the right part of the metro
No neighborhood guides for Chelsea yet. What is here instead is all 24 municipalities of the inner metro on one comparable footing.
All 24 municipalities inside eleven miles
Every municipality here side by side on home value, the rate the town publishes, the rate an owner-occupier really pays after the residential exemption, and the rate a landlord pays on the same building.
Compare the metroBoston, and the exemption it grants
The municipality at the middle of this table, on its own hub: the second highest published residential rate here, one of the lowest bills a resident owner actually pays, and the filing deadline that decides which of the two you get in your first year.
Read the Boston hubTampa Bay and its twenty-four
The two Zillow indexes in the same month, on Florida's homestead exemption instead of Massachusetts's residential one, in a market repricing storm surge in real time.
Compare the two coastsWhat buying in Chelsea actually involves
Chelsea grants the full 35% residential exemption, $279,066 of assessed value, which on a published rate of $11.48 is worth $3,203.68 a year. Because Chelsea also has the lowest home values in this layer, that flat slab covers more than half the typical house. The resulting bill of roughly $2,900 a year is the lowest of these twenty-four municipalities, and the effective rate of 0.55% is the second lowest, behind Cambridge. A city with modest incomes has used the one tool the state gives it about as hard as the tool can be used.
The gap between the owner and the landlord is wider here in proportional terms than anywhere else on this table. The same building rented out is taxed at the full $11.48 on the whole value, roughly $6,100 against your $2,900. In a city where most of the housing is two- and three-family and a large share of it is owned by people who do not live in it, that difference is the single most consequential thing on a Chelsea purchase, and it is why owner-occupancy is worth structuring the deal around.
Chelsea is dense and low-lying and both facts have costs. Chelsea Creek is tidal, the fuel terminals sit on it, and the city has been working on flood barriers along the waterfront for years. Homeowners insurance does not cover flood; that is a separate policy and an elevation certificate is what prices it. The city has also carried decades of air quality and environmental justice litigation over the terminals and the highway, which is a quality of life question rather than a valuation one but is a real one.
Value has been flat here over the year measured, the only municipality of the twenty-four to move neither up nor down. That is not a market signal so much as the sum of two: the entry price has been bid hard by buyers priced out of Boston and East Boston, and the investor demand that had been supporting the two-family market has cooled with rates.
Moving to Chelsea: check these before you commit
- Owner-occupancy and the exemption filing, which here is worth more than half the tax bill
- Flood zone and elevation certificate anywhere near the creek, and what a flood policy actually costs on the address
- For a two- or three-family: the rent roll, the leases and whether the tenancies are at will or under lease
- Whether the building has been deleaded, since most of this stock predates 1978 and Massachusetts law is strict
- Off-street parking, which in a city this dense is priced into the value and is frequently absent
- The Silver Line trip at rush hour rather than off peak, because it runs on a busway for only part of the route
Chelsea publishes a residential rate of $11 per $1,000 for fiscal 2026 and takes $279,066 of assessed value off an owner-occupied parcel, a local option under MGL c.59 s.5C that it votes again every autumn. Business pays $24, a classification shift of 2.07 to one. Both figures are what the municipality adopted and the Department of Revenue certified, rather than anything assembled on this site.
Sourced, dated, and separated from the guesswork
Every Chelsea figure below is cited, stamped with the period it describes, and editable, because a number for the whole city rarely describes your purchase. Appreciation and investment returns are assumptions rather than facts, and they are labelled that way. Read the methodology for how the line is drawn.
- Prices, rents and tax rates: published statistics and the official schedules.
- Nothing here is a lender quote, a pre-approval or financial advice.
Where the Chelsea figures come from
- Tax Rates by Class, fiscal year 2026 · Massachusetts Department of Revenue, Division of Local Services, Municipal Databank · retrieved Supports: The certified fiscal 2026 residential rate for each of the twenty-four municipalities, from Cambridge at $6.67 to Everett at $12.62, The commercial, industrial and personal property rate behind each of them, which gives the classification shift, That Arlington and Belmont charge a single rate to all classes, That fiscal 2026 is the most recent fully certified year: at the retrieval date only two of the state's 352 municipalities had a fiscal 2027 rate on the table
- Residential exemption, fiscal year 2026 · City of Boston Assessing Department · retrieved Supports: $351,108 of assessed value excluded from an owner-occupied parcel, worth $4,353.74 at the city's $12.40 rate, The 1 April filing deadline and the requirement to have owned and occupied on the previous 1 January
- City of Somerville FY2026 Classification Hearing, 25 November 2025, and the FY2026 Property Tax Update · Somerville Board of Assessors · retrieved Supports: A residential exemption of 35% of average assessed value adopted for fiscal 2026, yielding savings of up to $4,578, A minimum residential factor of 82.816, the legal minimum for the city, Form LA-4 parcel counts and assessed values by use code, from which the average Class One value of about $1,191,000 follows, That Somerville carries 7,251 condominium parcels against 2,315 single-family parcels, That life science property in this market depreciated about 20% between fiscal 2025 and fiscal 2026
- City Council meeting minutes, 28 October 2025: adoption of a residential exemption and minimum residential factor for fiscal 2026 · City of Malden · retrieved Supports: A unanimous vote to adopt a residential factor of 0.9054 and a residential exemption of 35%, raised from 30%, The council's own statement on the record that the increase is a tax shift benefiting owner-occupied households and not a tax cut, and that the shift is budget neutral, Average fiscal 2026 values of $449,000 for a condominium, $666,000 for a single family, $861,000 for a two-family and $991,000 for a three-family, That the increase from 30% to 35% is worth about $291 a year, from which the $178,684 exemption value here is derived, A Proposition 2 1/2 override under discussion for fiscal 2027 at $5.4 million and $8.2 million
- Residential exemption information for fiscal year 2026 · City of Chelsea Board of Assessors · retrieved Supports: An exemption of 35% of the average assessed value of all Class One residential parcels, $279,066 of assessed value excluded for fiscal 2026, worth $3,203.68 at the city's $11.48 rate, The 1 April 2026 filing deadline and the 1 January ownership and occupancy test
- Residential exemption information, fiscal year 2026 · City known as the Town of Watertown, Assessing Department · retrieved Supports: The maximum 35% exemption recommended by the assessors and adopted by the council for fiscal 2026, $324,715 of assessed value excluded, worth $3,961.52 at the town's $12.20 rate