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CondominiumResidential

429 Norfolk St

SOMERVILLE, MA 02143
0.53 ac
Lot SizeThe size of the land the home sits on, from county records.
2003
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
Built 200319 units390–1,686 ft²
$12M
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.
$554K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$846
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

+24.0%vs the Somerville ZIP median sale $/ft² ($682)

Sales Performance

$775K
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
+37.9%
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
1
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
5.3%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.
This building's own appreciationThe building's own appreciation: for every unit that sold twice (held over a year), we compute its yearly price change between the two sales and take the middle value. This is the cleanest read on how this specific building performs, because it compares each unit to itself.
+3.9%per yeartypical hold 6.8 yrsfrom 19 same-unit resales
Median sale price (yearly, all time)Every recorded arms-length sale in the building since records begin, grouped by year: the bars count sales and the line tracks the median price paid.MedianSales
20042006200920112017201920222025
Sale price per ft² (yearly, all time)The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.$/ft²
20042006200920112017201920222025

40 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.
$235K$534K$833K$1.1M390 ft²649 ft²908 ft²1,168 ft²1,427 ft²1,686 ft²
1 bd2 bd3 bd
1 bed
13 units
2 bed
1 unit
3 bed
5 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 · 390 ft²
2 units
1 bd · 1 ba · 585 ft²
2 units
1 bd · 1.5 ba · 790 ft²
2 units
One-off layouts
13 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.

$235K–$332K
2 units
$417K–$419K
2 units
$510K–$554K
6 units
$640K–$666K
2 units
$696K–$768K
2 units
$895K–$895K
1 unit
$1.1M–$1.1M
3 units

Ownership & Financing

Owner-occupiedThe share of units where the owner lives in the unit, per county records. The rest are second homes or rentals.74%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.0%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.11.2 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.50%
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.42%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$556,387
Median tax billThe middle annual property tax bill among the building's units.$5,561
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 1Dec 5, 2025$775,000Unit 2Jun 18, 2025$562,000Unit 4Oct 27, 2023$551,000Unit 1May 5, 2022$655,000Unit 10Jan 28, 2021$160,000Unit 8Nov 20, 2020$220,529Unit 13Jul 15, 2020$815,000Unit 13Sep 23, 2019$855,000Unit 3Jun 29, 2018$138,672Unit 19Mar 6, 2018$745,000

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.39 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.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
CountyMIDDLESEX
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
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
Albert F. Argenziano School at Lincoln ParkC
Elementary · Grades PK–8 · 0.3 mi
H
Somerville High SchoolC
High · Grades 9–12 · 0.9 mi

District: Somerville School District

Neighborhood · ZIP 02143These 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.136
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.106
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.75

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.38%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.6%
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.26,484
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.17,570 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$113,148
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$143,076
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.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.

429 Norfolk St # 1
3 bd · 1 ba · 906 ft²
$768K
429 Norfolk St
1 bd · 1 ba · 568 ft²
$554K
429 Norfolk St # 3
1 bd · 1 ba · 520 ft²
$235K
429 Norfolk St
1 bd · 1 ba · 587 ft²
$544K
429 Norfolk St # 5
1 bd · 1 ba · 585 ft²
$539K
429 Norfolk St # 6
1 bd · 1 ba · 585 ft²
$545K
429 Norfolk St # 7
1 bd · 1 ba · 588 ft²
$553K
429 Norfolk St # 8
1 bd · 1 ba · 402 ft²
$332K
429 Norfolk St
1 bd · 1 ba · 390 ft²
$419K
429 Norfolk St # 10
1 bd · 1 ba · 390 ft²
$417K
429 Norfolk St # 11
1 bd · 1 ba · 488 ft²
$510K
429 Norfolk St # 12
3 bd · 2.5 ba · 1,668 ft²
$1.1M
429 Norfolk St # 13
3 bd · 2.5 ba · 1,663 ft²
429 Norfolk St # 14
3 bd · 2.5 ba · 1,648 ft²
$1.1M
429 Norfolk St # 15
3 bd · 2.5 ba · 1,686 ft²
$1.1M
429 Norfolk St # 16
1 bd · 1.5 ba · 886 ft²
$696K
429 Norfolk St # 17
1 bd · 1.5 ba · 790 ft²
$666K
429 Norfolk St # 18
1 bd · 1.5 ba · 790 ft²
$640K
429 Norfolk St # 19
2 bd · 1.5 ba · 1,120 ft²
$895K

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

About 429 Norfolk St

How many units are in 429 Norfolk St, Somerville, MA?

429 Norfolk St, Somerville, MA has 19 residential units across built in 2003, according to county assessor records.

What is a unit at 429 Norfolk St, Somerville, MA worth?

The median TopHap Estimate across the 19 units at 429 Norfolk St, Somerville, MA is $553,803. That works out to $846 per square foot. Units run from 390 to 1,686 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 429 Norfolk St, Somerville, MA expensive for Somerville?

Units at 429 Norfolk St, Somerville, MA carry a median of $846 per square foot, 24% above the Somerville median of $682 per square foot.

How often do units sell at 429 Norfolk St, Somerville, MA?

1 units at 429 Norfolk St, Somerville, MA sold in the last 12 months, out of 40 recorded arms-length sales all time. That is a turnover rate of 5.3% of the building per year. The median sale over that period was $775K.

Have units at 429 Norfolk St, Somerville, MA appreciated?

Across 19 repeat sales of the same unit, 429 Norfolk St, Somerville, MA returned a median 3.9% 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 6.8 years.

What floor plans does 429 Norfolk St, Somerville, MA have?

The most common plan at 429 Norfolk St, Somerville, MA is a 1-bedroom of 390 square feet, repeated 2 times, with a median estimate of $418,170. TopHap identifies 3 recurring plans in the building.

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