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CondominiumResidential

109 Beach St

BOSTON, MA 02111
1,530 ft²
Lot SizeThe size of the land the home sits on, from county records.
1899
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
Built 189941 units500–2,595 ft²
$39M
All units combinedThe sum of our current value estimates for every unit in the building — roughly what the whole building's homes are worth together.
$851K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$771
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

-22.0%vs the Boston ZIP median sale $/ft² ($988)

Sales Performance

$735K
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
-24.0%
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
1
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
2.4%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.
This building's own appreciationThe building's own appreciation: for every unit that sold twice (held over a year), we compute its yearly price change between the two sales and take the middle value. This is the cleanest read on how this specific building performs, because it compares each unit to itself.
+2.4%per yeartypical hold 6.3 yrsfrom 43 same-unit resales
Median sale price (yearly, all time)Every recorded arms-length sale in the building since records begin, grouped by year: the bars count sales and the line tracks the median price paid.MedianSales
20042007201020132016201920222025
Sale price per ft² (yearly, all time)The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.$/ft²
20042007201020132016201920222025

86 arms-length sales on record for this building.

Unit Mix & Floor PlansThe building's recurring floor plans, found by grouping units with identical beds, baths and square footage in county records. Larger groups are the building's standard layouts; leftover units have one-off sizes.

Every unit: size vs estimated valueEvery unit in the building as one dot: across is its size, up is our current value estimate, and color is its bedroom count. Vertical columns of dots are recurring floor plans; the height spread within a column shows how much floor, view and condition move prices for the same layout.
$409K$1.2M$1.9M$2.6M500 ft²919 ft²1,338 ft²1,757 ft²2,176 ft²2,595 ft²
Studio1 bd2 bd3 bd
Studio
13 units
1 bed
16 units
2 bed
11 units
3 bed
1 unit

Value DistributionHow the building's units spread across value ranges by our current estimates. A wide spread usually means big differences in size, floor or view.

$409K–$681K
8 units
$691K–$916K
16 units
$1M–$1.2M
12 units
$1.3M–$1.5M
3 units
$2.1M–$2.1M
1 unit
$2.6M–$2.6M
1 unit

Ownership & Financing

Owner-occupiedThe share of units where the owner lives in the unit, per county records. The rest are second homes or rentals.20%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.20%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.10.2 yrs
Cash purchases (5 yrs)The share of purchases in the last 5 years with no mortgage recorded. High cash share is common in second-home and investor buildings.38%
Avg. loan-to-valueAverage current loan balance against unit value across the building. Low numbers mean owners hold lots of equity — a sign of financial stability.56%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$787,759
Median tax billThe middle annual property tax bill among the building's units.$8,856
Pre-foreclosure noticesUnits with an active pre-foreclosure or foreclosure notice on file.0

Recent SalesThe latest recorded arms-length sales in the building, newest first.

Unit 1FDec 29, 2025$735,000Unit 4FFeb 21, 2025$800,000Unit 3IFeb 11, 2025$1,135,000Unit 1AMay 14, 2024$680,000Unit 3CNov 2, 2023$777,000Unit 4AAug 10, 2023$1,215,000Unit 3CJun 30, 2022$745,000Unit 5GJun 30, 2022$620,000Unit 2ASep 15, 2021$1,070,000Unit 4HApr 2, 2021$735,000

Values are TopHap estimates, not appraisals. Sales, ownership and tax figures come from recorded county documents via ATTOM and can lag by several weeks.

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.50
82
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.49 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.71%
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.2004
Lot (acres)The size of the land the home sits on, from county records.0.04
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

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 · 0.4 mi
E
Josiah Quincy Elementary SchoolB+
Elementary · Grades PK–5 · 0.4 mi

District: Boston School District

Neighborhood · ZIP 02111These 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.157
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 100.78

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.86%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.24%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.22%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.10,326
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.27,210 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$82,381
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$110,947
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%

All UnitsEvery property record the county has at this street address, such as the units in a condo building. Prices shown are our estimates, not asking prices.

109 Beach St # 1a
1.5 ba · 740 ft²
$656K
109 Beach St # 1b
1.5 ba · 767 ft²
$530K
109 Beach St # 1c
1 ba · 835 ft²
$681K
109 Beach St # 1d
1 ba · 862 ft²
$691K
109 Beach St # 1e
1 ba · 968 ft²
$758K
109 Beach St # 1f
1.5 ba · 1,185 ft²
$735K
109 Beach St # 1g
1.5 ba · 1,720 ft²
$1M
109 Beach St # 1h
1 bd · 2 ba · 1,805 ft²
$1.1M
109 Beach St # 1i
2 bd · 2 ba · 2,595 ft²
$2.6M
109 Beach St # 2a
2 bd · 2 ba · 1,550 ft²
$1.2M
109 Beach St # 2b
1 bd · 1 ba · 915 ft²
$735K
109 Beach St # 2c
1 bd · 1 ba · 1,050 ft²
$757K
109 Beach St # 2d
1 bd · 1 ba · 1,090 ft²
$864K
109 Beach St # 2e
2 bd · 2 ba · 1,675 ft²
$1.1M
109 Beach St # 2f
1 bd · 1 ba · 985 ft²
$851K
109 Beach St # 2g
1 ba · 715 ft²
$584K
109 Beach St # 2h
1 bd · 1 ba · 1,530 ft²
$1.1M
109 Beach St # 3a
2 bd · 1.5 ba · 1,530 ft²
$1.2M
109 Beach St # 3b
1 bd · 1 ba · 890 ft²
$715K
109 Beach St # 3c
1 bd · 1 ba · 1,055 ft²
$791K
109 Beach St # 3d
1 bd · 1 ba · 1,080 ft²
$824K
109 Beach St # 3e
2 bd · 1 ba · 1,675 ft²
$1.1M
109 Beach St # 3f
1 ba · 1,075 ft²
$412K
109 Beach St # 3g
1 ba · 500 ft²
$409K
109 Beach St # 3h
2 bd · 2 ba · 1,520 ft²
$1.2M
109 Beach St # 3i
2 bd · 2 ba · 1,475 ft²
$1.1M
109 Beach St # 4a
2 bd · 2 ba · 1,530 ft²
$1.3M
109 Beach St # 4b
1 bd · 1 ba · 895 ft²
$765K
109 Beach St # 4c
2 bd · 1 ba · 1,065 ft²
$916K
109 Beach St # 4d
1 bd · 1 ba · 1,105 ft²
$850K
109 Beach St # 4e
2 bd · 2 ba · 1,620 ft²
$1.1M
109 Beach St # 4f
1 bd · 1 ba · 1,070 ft²
$801K
109 Beach St # 4g
1 ba · 510 ft²
$534K
109 Beach St # 4h
1 bd · 1 ba · 1,095 ft²
$840K
109 Beach St # 4i
1 bd · 2 ba · 1,845 ft²
$1.4M
109 Beach St # 5a
3 bd · 3 ba · 2,585 ft²
$2.1M
109 Beach St # 5c
1 ba · 1,390 ft²
$1M
109 Beach St # 5d
1 bd · 1 ba · 1,085 ft²
$873K
109 Beach St # 5e
1 bd · 2 ba · 1,910 ft²
$1.5M
109 Beach St # 5f
2 bd · 1 ba · 1,200 ft²
$1.1M
109 Beach St # 5g
1 ba · 555 ft²
$555K

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

About 109 Beach St

How many units are in 109 Beach St, Boston, MA?

109 Beach St, Boston, MA has 41 residential units across built in 1899, according to county assessor records.

What is a unit at 109 Beach St, Boston, MA worth?

The median TopHap Estimate across the 41 units at 109 Beach St, Boston, MA is $851,104. That works out to $771 per square foot. Units run from 500 to 2,595 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 109 Beach St, Boston, MA expensive for Boston?

Units at 109 Beach St, Boston, MA carry a median of $771 per square foot, 22% below the Boston median of $988 per square foot.

How often do units sell at 109 Beach St, Boston, MA?

1 units at 109 Beach St, Boston, MA sold in the last 12 months, out of 86 recorded arms-length sales all time. That is a turnover rate of 2.4% of the building per year. The median sale over that period was $735K.

Have units at 109 Beach St, Boston, MA appreciated?

Across 43 repeat sales of the same unit, 109 Beach St, Boston, MA returned a median 2.4% per year. Because each pair is the same unit bought and sold, the figure is not distorted by which units traded. The median owner held for 6.3 years.

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