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Office BuildingCommercial
Last sold for $1,700,000 on Mar 31, 2000

305 CONGRESS ST

BOSTON, MA 02210
0
Baths
71,898 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.
0.37 ac
Lot SizeThe size of the land the home sits on, from county records.
2000
Year BuiltThe year the home was originally built, according to county records.
6
StoriesHow many floors the home has above ground.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,700,000 · Mar 31, 2000

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$754,527 (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.$29,065,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$12,675,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$16,389,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$31,330,700

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.197 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.80%
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.1 percent flood zone

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Office Building
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.2016
Lot (acres)The size of the land the home sits on, from county records.0.38
ConstructionThe main material the home's frame and walls are built from.Steel Frame
HeatingThe type of heating system in the home.None
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.

M
Quincy Upper SchoolD
Middle · Grades 6–12 · 0.7 mi
E
Josiah Quincy Elementary SchoolB
Elementary · Grades PK–5 · 0.8 mi

District: Boston School District

Neighborhood · ZIP 02210These 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.172
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.101
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.76

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.78%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.41%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.7%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.7%
PopulationHow many people live in this area.5,452
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,835 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$181,383
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$244,618
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.45 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

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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

305 Congress 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.

  • Among the largest homes in Boston 02210
  • Has a bigger lot than 98% of homes in Suffolk County
  • Newer than 86% of homes in Suffolk County

How it measures up in Boston 02210

The dot is this home. The mark in the middle is the typical home in Boston 02210.

Living area71,898 ft²
SmallerTypical 1,176 ft²Bigger

Bigger than almost all homes nearby

Lot size0.37 ac
SmallerTypical 1,568 ft²Bigger

Bigger than 69% of homes nearby

Year built2000
OlderTypical 2015Newer

Newer than 27% of homes nearby

How 305 Congress St ranks against every home in each area.
MeasureThis homeBoston 02210Suffolk County
Living areabigger than71,898 ft²almost all homesalmost all homes
Lot sizebigger than0.37 ac69% of homes98% of homes
Year builtnewer than200027% of homes86% of homes

About 305 Congress St

When did 305 Congress St, Boston, MA last sell?

305 Congress St, Boston, MA last sold on Mar 31, 2000 for $1,700,000, according to the county's recorded deed.

How big is 305 Congress St, Boston, MA?

305 Congress St, Boston, MA has 71,898 square feet of living space and a 0.38-acre lot.

When was 305 Congress St, Boston, MA built?

305 Congress St, Boston, MA was built in 2000, making it 26 years old. The building has 6 stories.

What schools serve 305 Congress St, Boston, MA?

305 Congress St, Boston, MA is assigned to Quincy Upper School (middle), rated D; Josiah Quincy Elementary School (elementary), rated B. All sit in Boston School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 305 Congress St, Boston, MA compare to other homes in Boston 02210?

Among the 1,728 homes in Boston 02210, it is bigger than almost all of them (71,898 ft² against a typical 1,176 ft²), its lot is bigger than 69% of them (0.37 ac against a typical 1,568 ft²) and it is newer than 27% of them (2000 against a typical 2015). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 305 Congress St, Boston, MA?

The 2025 property tax bill for 305 Congress St, Boston, MA was $754,527. The county assessed it at $29,065,000.

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