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CondominiumResidential
$776,286$1,015 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 96How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $695,000 on May 5, 2022

9 BATTERY ST

BOSTON, MA 02109
Building report
1
Beds
1
Baths
765 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
954 ft²
Lot SizeThe size of the land the home sits on, from county records.
1880
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
3
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$776K
$743K low$810K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$695,000 · May 5, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,618 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$571,500 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$571,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$859,750

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.43
49
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
1
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
53
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
84
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
32
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.36 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.29%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
CountySUFFOLK
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2019
Lot (acres)The size of the land the home sits on, from county records.0.02
HeatingThe type of heating system in the home.Electric
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(4)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Eliot K-8 SchoolA
Elementary · Grades PK–8 · 0.1 mi
H
Charlestown High SchoolF
High · Grades 9–12 · 1.1 mi

District: Boston School District

Neighborhood · ZIP 02109These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.151
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.104
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.77

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.87%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.42%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.4,605
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.16,022 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$144,286
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$157,889
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.46 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

Owner Tools

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Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

9 Battery St measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Worth less than 75% of homes in Boston 02109
  • Costs more per square foot than 78% of homes in Suffolk County
  • Smaller than 85% of homes in Suffolk County
  • Has a smaller lot than 78% of homes in Suffolk County
  • Older than 94% of homes in Suffolk County

What homes are worth in Boston 02109

Each bar is how many homes fall in that price range. The marker is this home.

This home
$503K$4M

This home is worth more than 25% of homes in Boston 02109.

How it measures up in Boston 02109

The dot is this home. The mark in the middle is the typical home in Boston 02109.

Estimated value$776,286
CheaperTypical $1,011,018Pricier

Pricier than 25% of homes nearby

Price per ft²$1015
CheaperTypical $1118Pricier

Pricier than 30% of homes nearby

Living area765 ft²
SmallerTypical 1,039 ft²Bigger

Bigger than 26% of homes nearby

Lot size954 ft²
SmallerTypical 1,002 ft²Bigger

Bigger than 46% of homes nearby

Year built1880
OlderTypical 1900Newer

Newer than 20% of homes nearby

How 9 Battery St ranks against every home in each area.
MeasureThis homeNorth EndBoston 02109Suffolk County
Estimated valuepricier than$776,28643% of homes25% of homes59% of homes
Price per ft²pricier than$101532% of homes30% of homes78% of homes
Living areabigger than765 ft²37% of homes26% of homes15% of homes
Lot sizebigger than954 ft²58% of homes46% of homes22% of homes
Year builtnewer than188017% of homes20% of homes6% of homes

About 9 Battery St

How much is 9 Battery St, Boston, MA worth?

The TopHap Estimate for 9 Battery St, Boston, MA is $776,286 as of Sep 24, 2026. The likely range is $742,753 to $809,819. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 9 Battery St, Boston, MA last sell?

9 Battery St, Boston, MA last sold on May 5, 2022 for $695,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 9 Battery St, Boston, MA?

9 Battery St, Boston, MA has 1 bedrooms, 1 bathrooms, 765 square feet of living space and a 0.02-acre lot.

When was 9 Battery St, Boston, MA built?

9 Battery St, Boston, MA was built in 1880, making it 146 years old. The building has 2 stories.

What schools serve 9 Battery St, Boston, MA?

9 Battery St, Boston, MA is assigned to Eliot K-8 School (elementary), rated A; Charlestown High School (high), rated F. All sit in Boston School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 9 Battery St, Boston, MA compare to other homes in Boston 02109?

Among the 1,333 homes in Boston 02109, it is worth more than 25% of them ($776,286 against a typical $1,011,018), its price per square foot is higher than 30% of them ($1015 against a typical $1118), it is bigger than 26% of them (765 ft² against a typical 1,039 ft²), its lot is bigger than 46% of them (954 ft² against a typical 1,002 ft²) and it is newer than 20% of them (1880 against a typical 1900). Measured against all of Suffolk County, it is worth more than 59% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 9 Battery St, Boston, MA?

The 2025 property tax bill for 9 Battery St, Boston, MA was $6,618. The county assessed it at $571,500.

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