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CondominiumResidential

100 Marion St

BROOKLINE, MA 02446
0.37 ac
Lot SizeThe size of the land the home sits on, from county records.
1962
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.
Built 196233 units536–976 ft²
$23M
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.
$670K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$865
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

+3.7%vs the Brookline ZIP median sale $/ft² ($834)

Sales Performance

—
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
—
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
0
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
0.0%
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.
+3.8%per yeartypical hold 3.2 yrsfrom 35 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
20002002200420062009201320172025
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
20002002200420062009201320172025

67 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.
$499K$629K$759K$889K536 ft²624 ft²712 ft²800 ft²888 ft²976 ft²
1 bd2 bd
1 bed
19 units
2 bed
14 units
Recurring 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.
1 bd · 1 ba · 650 ft²
3 units
1 bd · 1 ba · 708 ft²
3 units
1 bd · 1 ba · 732 ft²
3 units
1 bd · 1 ba · 767 ft²
3 units
2 bd · 1 ba · 878 ft²
3 units
2 bd · 1 ba · 917 ft²
3 units
2 bd · 1 ba · 937 ft²
3 units
2 bd · 1 ba · 950 ft²
3 units
One-off layouts
9 units

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.

$499K–$540K
3 units
$549K–$584K
6 units
$601K–$645K
6 units
$648K–$670K
2 units
$704K–$738K
3 units
$760K–$774K
5 units
$796K–$836K
7 units
$889K–$889K
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.52%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.9%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.20.2 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.40%
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.37%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$663,500
Median tax billThe middle annual property tax bill among the building's units.$6,849
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 34Jun 5, 2025$675,000Unit 33Apr 25, 2025$550,000Unit 27Oct 6, 2022$740,000Unit 17May 26, 2022$768,000Unit 26Feb 11, 2022$675,000Unit 47Nov 3, 2017$730,000Unit 11Feb 24, 2017$440,000Unit 26Nov 13, 2015$567,000Unit 33Feb 28, 2013$361,000Unit 34Feb 28, 2013$406,000

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

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.35 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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
CountyNORFOLK
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
HeatingThe type of heating system in the home.Hot Water
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Elevator

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

E
Pierce SchoolA
Elementary · Grades KG–8 · 0.4 mi
H
Brookline High SchoolA-
High · Grades 9–12 · 0.5 mi

District: Brookline School District

Neighborhood · ZIP 02446These 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.144
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.108
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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.14%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.31,401
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.23,893 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$115,895
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$169,699
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.47 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.52%

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.

100 Marion St # Bmt
1 bd · 1 ba · 739 ft²
$549K
100 Marion St
1 bd · 1 ba · 536 ft²
$511K
100 Marion St # 11
1 bd · 1 ba · 661 ft²
$499K
100 Marion St # 12
1 bd · 1 ba · 689 ft²
$648K
100 Marion St # 14
1 bd · 1 ba · 746 ft²
$584K
100 Marion St # 15
1 bd · 1 ba · 706 ft²
$579K
100 Marion St # 16
1 bd · 1 ba · 752 ft²
$645K
100 Marion St # 17
2 bd · 1 ba · 847 ft²
$707K
100 Marion St # 18
2 bd · 1 ba · 976 ft²
$802K
100 Marion St # 21
2 bd · 1 ba · 917 ft²
$768K
100 Marion St # 22
2 bd · 1 ba · 950 ft²
$774K
100 Marion St # 23
1 bd · 1 ba · 650 ft²
$540K
100 Marion St # 24
1 bd · 1 ba · 767 ft²
$611K
100 Marion St # 25
1 bd · 1 ba · 708 ft²
$569K
100 Marion St # 26
1 bd · 1 ba · 732 ft²
$738K
100 Marion St # 27
2 bd · 1 ba · 878 ft²
$760K
100 Marion St # 28
2 bd · 1 ba · 937 ft²
$805K
100 Marion St # 31
2 bd · 1 ba · 917 ft²
$796K
100 Marion St # 32
2 bd · 1 ba · 950 ft²
$826K
100 Marion St # 33
1 bd · 1 ba · 650 ft²
$577K
100 Marion St # 34
1 bd · 1 ba · 767 ft²
$704K
100 Marion St # 35
1 bd · 1 ba · 708 ft²
$601K
100 Marion St # 36
1 bd · 1 ba · 732 ft²
$639K
100 Marion St # 37
2 bd · 1 ba · 878 ft²
$763K
100 Marion St # 38
2 bd · 1 ba · 937 ft²
$889K
100 Marion St # 41
2 bd · 1 ba · 917 ft²
$836K
100 Marion St # 42
2 bd · 1 ba · 950 ft²
$822K
100 Marion St # 43
1 bd · 1 ba · 650 ft²
$576K
100 Marion St # 44
1 bd · 1 ba · 767 ft²
$670K
100 Marion St # 45
1 bd · 1 ba · 708 ft²
$604K
100 Marion St # 46
1 bd · 1 ba · 732 ft²
$634K
100 Marion St # 47
2 bd · 1 ba · 878 ft²
$773K
100 Marion St # 48
2 bd · 1 ba · 937 ft²
$805K

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

About 100 Marion St

How many units are in 100 Marion St, Brookline, MA?

100 Marion St, Brookline, MA has 33 residential units across built in 1962, according to county assessor records.

What is a unit at 100 Marion St, Brookline, MA worth?

The median TopHap Estimate across the 33 units at 100 Marion St, Brookline, MA is $669,977. That works out to $865 per square foot. Units run from 536 to 976 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 100 Marion St, Brookline, MA expensive for Brookline?

Units at 100 Marion St, Brookline, MA carry a median of $865 per square foot, 4% above the Brookline median of $834 per square foot.

How often do units sell at 100 Marion St, Brookline, MA?

0 units at 100 Marion St, Brookline, MA sold in the last 12 months, out of 67 recorded arms-length sales all time. That is a turnover rate of 0.0% of the building per year.

Have units at 100 Marion St, Brookline, MA appreciated?

Across 35 repeat sales of the same unit, 100 Marion St, Brookline, MA returned a median 3.8% 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 3.2 years.

What floor plans does 100 Marion St, Brookline, MA have?

The most common plan at 100 Marion St, Brookline, MA is a 1-bedroom of 650 square feet, repeated 3 times, with a median estimate of $575,653. TopHap identifies 8 recurring plans in the building.

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