CondominiumResidential
346 Congress St
BOSTON, MA 02210
1,134 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 18997 floors88 units584–4,630 ft²
$71M
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.
$1.1M
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$1066
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.
-8.8%vs the Boston ZIP median sale $/ft² ($1169)
Sales Performance
$652K
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
-18.5%
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
4
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
4.5%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.
This building's own appreciationThe building's own appreciation: for every unit that sold twice (held over a year), we compute its yearly price change between the two sales and take the middle value. This is the cleanest read on how this specific building performs, because it compares each unit to itself.
+5.7%per yeartypical hold 6.2 yrsfrom 70 same-unit resales
Median sale price (yearly, all time)Every recorded arms-length sale in the building since records begin, grouped by year: the bars count sales and the line tracks the median price paid.MedianSales
20082011201320162018202120232026
Sale price per ft² (yearly, all time)The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.$/ft²
20082011201320162018202120232026
151 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.
1 bd2 bd3 bd4+ bd
1 bed
49 units$702K · $1012/ft²
2 bed
34 units$1.3M · $1112/ft²
3 bed
4 units$2.1M · $1097/ft²
4 bed
1 unit$2.6M · $551/ft²
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 · 683 ft²
2 units$723K · $1059/ft²
1 bd · 1 ba · 754 ft²
2 units$699K · $927/ft²
2 bd · 2 ba · 1,027 ft²
2 units$1.1M · $1053/ft²
2 bd · 2 ba · 1,039 ft²
2 units$1.1M · $1031/ft²
One-off layouts
80 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.
$303K–$657K
8 units
$661K–$988K
19 units
$1M–$1.3M
19 units
$1.5M–$1.7M
2 units
$1.8M–$2M
6 units
$2.1M–$2.2M
2 units
$2.5M–$2.6M
3 units
$3.1M–$3.1M
1 unit
Value by Floor & LineAverage estimated price per square foot by floor range, using unit numbers to infer floors. Higher floors usually price higher — the gap shows how much the view is worth here.
Floors 1–2
$1011/ft²14 units · -5%
Floor 3
$1000/ft²12 units · -6%
Floors 4–5
$1020/ft²21 units · -4%
Floor 6
$1297/ft²9 units · +22%
Floor 7
$1803/ft²1 unit · +69%
Unit lines by $/ft²Condo units stacked vertically share a unit line — the last digits of the unit number (like 05 in 1205, 1305, 1405). Lines share a layout and exposure, so comparing estimated $/ft² by line shows which position in the building commands a premium.
Line ·03
$1215/ft²3 units · +14%
Line ·02
$1164/ft²5 units · +9%
Line ·18
$1121/ft²3 units · +5%
Line ·05
$1108/ft²4 units · +4%
Line ·07
$1107/ft²5 units · +4%
Line ·10
$1077/ft²4 units · +1%
Line ·09
$1052/ft²3 units · -1%
Line ·08
$1034/ft²6 units · -3%
Line ·01
$1030/ft²5 units · -3%
Line ·14
$954/ft²4 units · -11%
Line ·16
$951/ft²4 units · -11%
Line ·12
$882/ft²3 units · -17%
Ownership & Financing
Owner-occupiedThe share of units where the owner lives in the unit, per county records. The rest are second homes or rentals.47%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.23%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.8.0 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.19%
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.43%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$1,039,729
Median tax billThe middle annual property tax bill among the building's units.$10,076
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 514Jul 10, 2026$605,000$802/ft²Unit 508Jan 9, 2026$660,000$969/ft²Unit 204Dec 17, 2025$644,000$928/ft²Unit 202Oct 24, 2025$1,239,000$1016/ft²Unit 212Jul 31, 2025$587,000$827/ft²Unit 301Jul 2, 2025$1,125,000$1002/ft²Unit 410Apr 15, 2025$630,000$955/ft²Unit 516Apr 8, 2025$800,000$1013/ft²Unit 414Nov 8, 2024$800,000$1061/ft²Unit 316Jul 22, 2024$780,000$995/ft²
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.65 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.86%
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.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.2007
Lot (acres)The size of the land the home sits on, from county records.0.03
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.
ME
Quincy Upper SchoolD
Middle · Grades 6–12 · 0.8 mi
Josiah Quincy Elementary SchoolB
Elementary · Grades PK–5 · 0.9 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%
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.
346 Congress St # Ph1
2 bd · 2.5 ba · 1,942 ft²
346 Congress St # Ph2
4 bd · 3 ba · 4,630 ft²
346 Congress St # Ph3
2 bd · 2.5 ba · 2,178 ft²
346 Congress St # 108
1 bd · 1 ba · 926 ft²
346 Congress St # 201
2 bd · 2 ba · 1,134 ft²
346 Congress St # 202
2 bd · 2 ba · 1,219 ft²
346 Congress St # 203
1 bd · 1 ba · 648 ft²
346 Congress St # 204
1 bd · 1 ba · 694 ft²
346 Congress St # 205
2 bd · 2 ba · 1,039 ft²
346 Congress St # 206
1 bd · 1 ba · 586 ft²
346 Congress St # 207
2 bd · 2 ba · 1,001 ft²
346 Congress St # 208
1 bd · 1 ba · 671 ft²
346 Congress St # 209
2 bd · 2 ba · 1,033 ft²
346 Congress St # 210
1 bd · 1 ba · 641 ft²
346 Congress St # 211
1 bd · 1 ba · 859 ft²
346 Congress St # 212
1 bd · 1 ba · 710 ft²
346 Congress St Unit 213
1 bd · 1 ba · 724 ft²
346 Congress St # 214
1 bd · 1 ba · 747 ft²
346 Congress St # 215
2 bd · 2 ba · 1,382 ft²
346 Congress St # 216
1 bd · 1 ba · 788 ft²
346 Congress St # 217
1 bd · 1.5 ba · 747 ft²
346 Congress St # 218
2 bd · 2 ba · 1,183 ft²
346 Congress St # 301
2 bd · 2 ba · 1,123 ft²
346 Congress St # 302
2 bd · 2 ba · 1,214 ft²
346 Congress St Unit 303
1 bd · 1 ba · 651 ft²
346 Congress St # 304
1 bd · 1 ba · 698 ft²
346 Congress St # 305
2 bd · 2 ba · 1,019 ft²
346 Congress St # 306
1 bd · 1 ba · 584 ft²
346 Congress St # 307
2 bd · 2 ba · 1,000 ft²
346 Congress St # 308
1 bd · 1 ba · 670 ft²
346 Congress St # 309
1 bd · 2 ba · 1,027 ft²
346 Congress St # 310
1 bd · 1 ba · 644 ft²
346 Congress St # 311
1 bd · 1 ba · 850 ft²
346 Congress St # 312
1 bd · 1 ba · 707 ft²
346 Congress St # 313
1 bd · 1 ba · 721 ft²
346 Congress St # 314
1 bd · 1 ba · 769 ft²
346 Congress St # 315
2 bd · 2 ba · 1,374 ft²
346 Congress St # 316
1 bd · 1 ba · 784 ft²
346 Congress St # 317
1 bd · 1.5 ba · 744 ft²
346 Congress St # 318
2 bd · 2 ba · 1,131 ft²
346 Congress St # 401
3 bd · 2.5 ba · 1,804 ft²
346 Congress St # 402
3 bd · 2.5 ba · 1,933 ft²
346 Congress St # 405
2 bd · 2 ba · 1,027 ft²
346 Congress St # 406
1 bd · 1 ba · 601 ft²
346 Congress St # 407
2 bd · 2 ba · 1,005 ft²
346 Congress St # 408
1 bd · 1 ba · 683 ft²
346 Congress St # 409
2 bd · 2 ba · 1,040 ft²
346 Congress St # 410
1 bd · 1 ba · 660 ft²
346 Congress St # 411
1 bd · 1 ba · 857 ft²
346 Congress St # 412
1 bd · 1 ba · 717 ft²
346 Congress St # 413
1 bd · 1 ba · 716 ft²
346 Congress St # 414
1 bd · 1 ba · 754 ft²
346 Congress St # 415
2 bd · 2 ba · 1,386 ft²
346 Congress St # 416
1 bd · 1 ba · 795 ft²
346 Congress St # 417
1 bd · 1.5 ba · 739 ft²
346 Congress St # 418
2 bd · 2 ba · 1,153 ft²
346 Congress St # 501
3 bd · 2.5 ba · 1,785 ft²
346 Congress St # 502
3 bd · 2.5 ba · 1,945 ft²
346 Congress St # 505
2 bd · 2 ba · 1,027 ft²
346 Congress St # 506
1 bd · 1 ba · 590 ft²
346 Congress St # 507
2 bd · 2 ba · 995 ft²
346 Congress St # 508
1 bd · 1 ba · 681 ft²
346 Congress St # 509
2 bd · 2 ba · 1,039 ft²
346 Congress St # 510
1 bd · 1 ba · 656 ft²
346 Congress St # 511
1 bd · 1 ba · 856 ft²
346 Congress St # 512
1 bd · 1 ba · 708 ft²
346 Congress St Unit 513
1 bd · 1 ba · 726 ft²
346 Congress St # 514
1 bd · 1 ba · 754 ft²
346 Congress St # 515
2 bd · 2 ba · 1,398 ft²
346 Congress St # 516
1 bd · 1 ba · 790 ft²
346 Congress St # 517
1 bd · 1.5 ba · 784 ft²
346 Congress St # 518
2 bd · 2 ba · 1,149 ft²
346 Congress St # 601
2 bd · 2 ba · 1,565 ft²
346 Congress St # 602
2 bd · 2.5 ba · 1,751 ft²
346 Congress St # 603
2 bd · 2 ba · 960 ft²
346 Congress St # 604
2 bd · 2.5 ba · 1,316 ft²
346 Congress St # 605
1 bd · 1.5 ba · 889 ft²
346 Congress St # 606
2 bd · 2.5 ba · 1,394 ft²
346 Congress St # 607
1 bd · 2 ba · 901 ft²
346 Congress St # 608
1 bd · 1 ba · 683 ft²
346 Congress St # 609
1 bd · 1.5 ba · 807 ft²
346 Congress St # 610
2 bd · 2.5 ba · 1,402 ft²
346 Congress St # 611
1 bd · 1.5 ba · 753 ft²
346 Congress St # 612
1 bd · 1 ba · 789 ft²
346 Congress St # 613
2 bd · 2 ba · 1,159 ft²
346 Congress St # 701
2 bd · 2 ba · 1,438 ft²
346 Congress St # 702
1 bd · 1 ba · 756 ft²
346 Congress St # 703
2 bd · 2 ba · 1,109 ft²
Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.
About 346 Congress St
How many units are in 346 Congress St, Boston, MA?
346 Congress St, Boston, MA has 88 residential units across 7 floors, built in 1899, according to county assessor records.
What is a unit at 346 Congress St, Boston, MA worth?
The median TopHap Estimate across the 88 units at 346 Congress St, Boston, MA is $1,068,610. That works out to $1066 per square foot. Units run from 584 to 4,630 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.
Is 346 Congress St, Boston, MA expensive for Boston?
Units at 346 Congress St, Boston, MA carry a median of $1066 per square foot, 9% below the Boston median of $1169 per square foot.
How often do units sell at 346 Congress St, Boston, MA?
4 units at 346 Congress St, Boston, MA sold in the last 12 months, out of 151 recorded arms-length sales all time. That is a turnover rate of 4.5% of the building per year. The median sale over that period was $652K.
Have units at 346 Congress St, Boston, MA appreciated?
Across 70 repeat sales of the same unit, 346 Congress St, Boston, MA returned a median 5.7% 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 6.2 years.
What floor plans does 346 Congress St, Boston, MA have?
The most common plan at 346 Congress St, Boston, MA is a 1-bedroom of 683 square feet, repeated 2 times, with a median estimate of $722,996. TopHap identifies 4 recurring plans in the building.
More homes on Congress St
- 346 Congress St # 607$1M1 bd · 2 ba · 901 ft² · Sold $985K · Jul 2026
- 346 Congress St # 514$605K1 bd · 1 ba · 754 ft² · Sold $605K · Jul 2026
- 346 Congress St # 508$657K1 bd · 1 ba · 681 ft² · Sold $660K · Jan 2026
- 346 Congress St # 204$640K1 bd · 1 ba · 694 ft² · Sold $644K · Dec 2025
- 346 Congress St # 202$1.2M2 bd · 2 ba · 1,219 ft² · Sold $1.2M · Oct 2025
- 346 Congress St # 212$582K1 bd · 1 ba · 710 ft² · Sold $587K · Jul 2025
- 346 Congress St # 301$1.1M2 bd · 2 ba · 1,123 ft² · Sold $1.1M · Jul 2025
- 355 Congress St # 403$1.3M2 bd · 2 ba · 1,120 ft² · Sold $1.4M · May 2025
- 346 Congress St # 410$624K1 bd · 1 ba · 660 ft² · Sold $630K · Apr 2025
- 346 Congress St # 516$793K1 bd · 1 ba · 790 ft² · Sold $800K · Apr 2025
- 346 Congress St # 316$774K1 bd · 1 ba · 784 ft² · Sold $780K · Jul 2024
- 346 Congress St # 601$2M2 bd · 2 ba · 1,565 ft² · Sold $2M · May 2024
Closest homes
- 346 Congress St$865K0 ft · 1 bd · 1.5 ba · 747 ft² · Sold $720K · Sep 2017
- 346 Congress St$797K0 ft · 1 bd · 1 ba · 788 ft² · Sold $720K · May 2017
- 346 Congress St$1.3M0 ft · 2 bd · 2 ba · 1,214 ft² · Sold $1.3M · Jun 2023
- 346 Congress St$774K0 ft · 1 bd · 1 ba · 784 ft² · Sold $780K · Jul 2024
- 346 Congress St0 ft · 2 bd · 2 ba · 1,149 ft² · Sold $1.2M · May 2021
- 346 Congress St$1.8M0 ft · 2 bd · 2.5 ba · 1,316 ft² · Sold $1.2M · Jun 2017
- 346 Congress St$988K0 ft · 1 bd · 1 ba · 926 ft² · Sold $675K · Apr 2015
- 346 Congress St$687K0 ft · 1 bd · 1 ba · 644 ft² · Sold Nov 2016
More homes in Boston 02210
- 500 Atlantic Ave2 bd · 2.5 ba · 1,557 ft² · Sold $1.8M · Aug 2026
- 133 Seaport Blvd$1.3M1 bd · 1.5 ba · 779 ft² · Sold $1.3M · Aug 2026
- 133 Seaport Blvd$2.2M2 bd · 2 ba · 1,244 ft² · Sold $2.1M · Aug 2026
- 135 Seaport Blvd$1.3M1 bd · 1 ba · 857 ft² · Sold $1.3M · Jul 2026
- 500 Atlantic Ave$2.1M2 bd · 2.5 ba · 1,593 ft² · Sold $2.2M · Jul 2026
- 133 Seaport Blvd$1.3M1 bd · 1 ba · 795 ft² · Sold $1.3M · Jul 2026
- 133 Seaport Blvd$1.7M2 bd · 2 ba · 1,062 ft² · Sold $1.7M · Jul 2026
- 150 Seaport Blvd$1.7M1 bd · 1.5 ba · 1,128 ft² · Sold $1.7M · Jul 2026
- 150 Seaport Blvd$2.8M2 bd · 2.5 ba · 1,942 ft² · Sold $2.8M · Jun 2026
- 500 Atlantic Ave$1.9M2 bd · 2 ba · 1,580 ft² · Sold $2M · Jun 2026
- 21 Wormwood St$1.1M1 bd · 1 ba · 1,317 ft² · Sold $1.2M · Jun 2026
- 22 Liberty Dr2 bd · 2.5 ba · 2,129 ft² · Sold $5.6M · Jun 2026
Assigned schools
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