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CondominiumResidential

47 Alder St

WALTHAM, MA 02453
1.4 ac
Lot SizeThe size of the land the home sits on, from county records.
2004
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.
Built 200240 units1,156–1,288 ft²
$20M
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.
$673K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$541
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

+14.1%vs the Waltham ZIP median sale $/ft² ($474)

Sales Performance

$600K
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
—
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
1
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
2.5%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.
This building's own appreciationThe building's own appreciation: for every unit that sold twice (held over a year), we compute its yearly price change between the two sales and take the middle value. This is the cleanest read on how this specific building performs, because it compares each unit to itself.
+2.1%per yeartypical hold 5.1 yrsfrom 48 same-unit resales
Median sale price (yearly, all time)Every recorded arms-length sale in the building since records begin, grouped by year: the bars count sales and the line tracks the median price paid.MedianSales
20022005200720102013201820202025
Sale price per ft² (yearly, all time)The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.$/ft²
20022005200720102013201820202025

87 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.
$649K$677K$704K$732K1,156 ft²1,182 ft²1,209 ft²1,235 ft²1,262 ft²1,288 ft²
2 bd
2 bed
40 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.
2 bd · 1.5 ba · 1,248 ft²
16 units
2 bd · 1.5 ba · 1,288 ft²
8 units
2 bd · 1.5 ba · 1,156 ft²
7 units
2 bd · 1.5 ba · 1,240 ft²
5 units
2 bd · 1.5 ba · 1,228 ft²
2 units
2 bd · 1.5 ba · 1,238 ft²
2 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.

$649K–$657K
4 units
$662K–$669K
8 units
$670K–$680K
13 units
$686K–$689K
3 units
$713K–$713K
1 unit
$732K–$732K
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.78%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.5%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.11.0 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.100%
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.44%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$680,447
Median tax billThe middle annual property tax bill among the building's units.$6,649
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 6Dec 22, 2025$600,000Unit 37May 12, 2022$651,800Unit 25Jul 9, 2021$560,000Unit 22May 6, 2021$530,000Unit 17Dec 17, 2020$499,900Unit 41Nov 26, 2019$500,000Unit 11Nov 12, 2019$474,000Unit 18Jul 26, 2019$489,900Unit 4May 29, 2019$494,000Unit 21May 14, 2019$509,000

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

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
CountyMIDDLESEX
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Basement
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.

E
Henry Whittemore Elementary SchoolB
Elementary · Grades KG–5 · 0.3 mi
M
John W. McDevitt Middle SchoolB
Middle · Grades 6–8 · 0.8 mi
H
Waltham Sr High SchoolC
High · Grades 9–12 · 2.0 mi

District: Waltham School District

Neighborhood · ZIP 02453These 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.106
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 100.73

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.8%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.32,080
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.8,464 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$106,981
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$136,606
Average tempThe average temperature here across a full year.49°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.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.

47 Alder St # 1
2 bd · 1.5 ba · 1,248 ft²
47 Alder St # 2
2 bd · 1.5 ba · 1,248 ft²
$669K
47 Alder St # 3
2 bd · 1.5 ba · 1,248 ft²
$669K
47 Alder St
2 bd · 1.5 ba · 1,248 ft²
47 Alder St # 5
2 bd · 1.5 ba · 1,248 ft²
$671K
47 Alder St # 6
2 bd · 1.5 ba · 1,248 ft²
$649K
47 Alder St
2 bd · 1.5 ba · 1,248 ft²
$679K
47 Alder St # 8
2 bd · 1.5 ba · 1,248 ft²
$662K
47 Alder St # 9
2 bd · 1.5 ba · 1,248 ft²
47 Alder St # 10
2 bd · 1.5 ba · 1,248 ft²
47 Alder St # 11
2 bd · 1.5 ba · 1,248 ft²
$673K
47 Alder St # 12
2 bd · 1.5 ba · 1,240 ft²
47 Alder St # 13
2 bd · 1.5 ba · 1,248 ft²
$677K
47 Alder St # 14
2 bd · 1.5 ba · 1,240 ft²
47 Alder St # 15
2 bd · 1.5 ba · 1,248 ft²
47 Alder St # 16
2 bd · 1.5 ba · 1,240 ft²
$673K
47 Alder St # 17
2 bd · 1.5 ba · 1,248 ft²
$668K
47 Alder St # 18
2 bd · 1.5 ba · 1,240 ft²
$664K
47 Alder St # 19
2 bd · 1.5 ba · 1,248 ft²
$686K
47 Alder St # 20
2 bd · 1.5 ba · 1,240 ft²
$689K
47 Alder St # 21
2 bd · 1.5 ba · 1,248 ft²
$670K
47 Alder St # 22
2 bd · 1.5 ba · 1,288 ft²
$675K
47 Alder St # 23
2 bd · 1.5 ba · 1,238 ft²
$680K
47 Alder St # 24
2 bd · 1.5 ba · 1,288 ft²
$675K
47 Alder St # 25
2 bd · 1.5 ba · 1,228 ft²
$677K
47 Alder St # 26
2 bd · 1.5 ba · 1,288 ft²
$686K
47 Alder St # 27
2 bd · 1.5 ba · 1,238 ft²
$674K
47 Alder St # 28
2 bd · 1.5 ba · 1,288 ft²
47 Alder St # 29
2 bd · 1.5 ba · 1,228 ft²
$657K
47 Alder St # 30
2 bd · 1.5 ba · 1,288 ft²
$675K
47 Alder St # 31
2 bd · 1.5 ba · 1,156 ft²
$656K
47 Alder St # 32
2 bd · 1.5 ba · 1,288 ft²
$675K
47 Alder St # 33
2 bd · 1.5 ba · 1,156 ft²
$656K
47 Alder St # 34
2 bd · 1.5 ba · 1,288 ft²
47 Alder St # 35
2 bd · 1.5 ba · 1,156 ft²
$663K
47 Alder St # 36
2 bd · 1.5 ba · 1,288 ft²
$713K
47 Alder St # 37
2 bd · 1.5 ba · 1,156 ft²
$732K
47 Alder St # 39
2 bd · 1.5 ba · 1,156 ft²
47 Alder St # 41
2 bd · 1.5 ba · 1,156 ft²
$663K
47 Alder St # 43
2 bd · 1.5 ba · 1,156 ft²
$664K

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

About 47 Alder St

How many units are in 47 Alder St, Waltham, MA?

47 Alder St, Waltham, MA has 40 residential units across built in 2002, according to county assessor records.

What is a unit at 47 Alder St, Waltham, MA worth?

The median TopHap Estimate across the 40 units at 47 Alder St, Waltham, MA is $672,938. That works out to $541 per square foot. Units run from 1,156 to 1,288 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 47 Alder St, Waltham, MA expensive for Waltham?

Units at 47 Alder St, Waltham, MA carry a median of $541 per square foot, 14% above the Waltham median of $474 per square foot.

How often do units sell at 47 Alder St, Waltham, MA?

1 units at 47 Alder St, Waltham, MA sold in the last 12 months, out of 87 recorded arms-length sales all time. That is a turnover rate of 2.5% of the building per year. The median sale over that period was $600K.

Have units at 47 Alder St, Waltham, MA appreciated?

Across 48 repeat sales of the same unit, 47 Alder St, Waltham, MA returned a median 2.1% 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 5.1 years.

What floor plans does 47 Alder St, Waltham, MA have?

The most common plan at 47 Alder St, Waltham, MA is a 2-bedroom of 1,248 square feet, repeated 16 times, with a median estimate of $670,248. TopHap identifies 6 recurring plans in the building.

More homes on Alder St

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Assigned schools

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