House Prices

Black Rock Cohasset, MA House Prices & Home Values 2026


Average Data

average house price$2,636,298
average size per house4288 ft²
average price per ft²676 $ / ft²

05/23/2026 - The value range (VR) for house prices in Black Rock Cohasset, MA is $642.2/ sqft to $709.8/ sqft. An average home with 4288 sqft costs approximately $3,023,622 to $3,341,898. Cohasset, MA includes 1 ZIP codes and it is located in Norfolk county. The lowest prices are found in ZIP 02025, while the highest are in ZIP 02025. The average price per sqare feet is $676. Our analysis is based on 8 property listings.

Avergage prices by ZIP codes Black Rock Cohasset

02025513 $ / ft²




Historical development of home values in Black Rock Cohasset

Year Estimated value (USD) Change vs. 2025
2010 $1,224,344 -53.6%
2011 $1,176,999 -55.4%
2012 $1,173,830 -55.5%
2013 $1,217,705 -53.8%
2014 $1,278,254 -51.5%
2015 $1,343,859 -49.0%
2016 $1,413,991 -46.4%
2017 $1,490,309 -43.5%
2018 $1,572,702 -40.3%
2019 $1,645,625 -37.6%
2020 $1,730,697 -34.4%
2021 $1,968,481 -25.3%
2022 $2,294,806 -13.0%
2023 $2,419,980 -8.2%
2024 $2,559,979 -2.9%
2025 $2,636,298 0.0%

Graph: estimated home values in Black Rock Cohasset over time (USD)



Example: 100% financing house in Black Rock Cohasset

Loan amount: $2,636,298

Interest rate: 6.59%

Fixed monthly payment: $16,816.06

Breakdown in the 1st month:
Interest portion: $14,473.28  –  Principal portion: $2,342.78

Yearly breakdown (100% financing)

Year Interest per year ($) Principal per year ($) Remaining balance at year-end ($)
1 $172,814.70 $28,978.02 $2,607,319.98
2 $170,846.92 $30,945.80 $2,576,374.18
3 $168,745.51 $33,047.21 $2,543,326.98
4 $166,501.40 $35,291.32 $2,508,035.66
5 $164,104.90 $37,687.81 $2,470,347.85
6 $161,545.67 $40,247.04 $2,430,100.80
7 $158,812.65 $42,980.06 $2,387,120.74
8 $155,894.04 $45,898.67 $2,341,222.07
9 $152,777.24 $49,015.47 $2,292,206.59
10 $149,448.79 $52,343.92 $2,239,862.67
11 $145,894.32 $55,898.39 $2,183,964.28
12 $142,098.48 $59,694.24 $2,124,270.04
13 $138,044.88 $63,747.84 $2,060,522.20
14 $133,716.01 $68,076.71 $1,992,445.50
15 $129,093.19 $72,699.53 $1,919,745.97
16 $124,156.44 $77,636.27 $1,842,109.69
17 $118,884.47 $82,908.25 $1,759,201.44
18 $113,254.49 $88,538.23 $1,670,663.22
19 $107,242.20 $94,550.51 $1,576,112.71
20 $100,821.65 $100,971.07 $1,475,141.64
21 $93,965.10 $107,827.62 $1,367,314.02
22 $86,642.94 $115,149.77 $1,252,164.25
23 $78,823.57 $122,969.15 $1,129,195.10
24 $70,473.21 $131,319.50 $997,875.60
25 $61,555.82 $140,236.90 $857,638.70
26 $52,032.88 $149,759.84 $707,878.86
27 $41,863.27 $159,929.45 $547,949.42
28 $31,003.09 $170,789.63 $377,159.79
29 $19,405.43 $182,387.29 $194,772.50
30 $7,020.22 $194,772.50 $0.00

Note: The calculation is based on a standard annuity mortgage with a fixed monthly payment over the entire term. Extra payments, interest rate changes, and additional purchase costs (e.g. taxes, notary fees) are not included.


How to sell in Black Rock Cohasset, MA


1500 sqft3900 sqft
Ø selling price$1,347,181$2,865,820
Ø fast selling$1,224,710$2,579,238
Ø high price sale$1,469,652$3,152,402

In 2026, houses in Black Rock Cohasset, MA will be offered at an average price of $676 per square foot. A 1,500 sqft home priced at $1,347,181 is 25.25% more expensive per square foot than a 3,900 sqft home priced at $2,865,820. Home prices in Black Rock Cohasset, MA vary significantly depending on the property’s condition and exact location. For a quick sale, a 2,700 sqft home should be listed at around $1,984,029. Sellers who can wait longer may achieve a higher price of up to $2,424,925.


Black Rock, Cohasset MA Neighborhood Guide

The Black Rock neighborhood in Cohasset, MA offers a classic New England coastal lifestyle on Boston?s South Shore.

Coastal Setting & Lifestyle

Anchored by the dramatic shoreline around Black Rock Beach, the area features rocky outcrops, tide pools, and sweeping Atlantic views.
Residents enjoy sunrise walks, beachcombing, and salty sea breezes that define everyday life here.

Housing & Real Estate

Real estate in Black Rock, Cohasset ranges from shingled cottages to updated colonials and custom homes with potential water views.
Buyers searching for homes for sale in Black Rock Cohasset MA appreciate its character, coastal charm, and proximity to the ocean.

Recreation & Amenities

Outdoor recreation abounds with boating out of nearby Cohasset Harbor, scenic drives along Jerusalem Road, and access to conservation trails.
The expansive Whitney and Thayer Woods network offers hiking, birding, and year-round nature exploration.

Location & Commute

Commuters value quick connections via Route 3A and the Cohasset station on the MBTA Greenbush Line for service into Boston.
Everyday conveniences, boutique shopping, and dining in Cohasset Village are just minutes away.

Community & Schools

The neighborhood blends small-town warmth with strong Cohasset Public Schools and a close-knit community that celebrates coastal heritage.



FAQ – Home Values in Black Rock Cohasset

What is the median home value in Black Rock Cohasset in 2026?

In 2026, the typical home value in Black Rock Cohasset is about $2,636,298 for an average home size of 4288 square feet. This corresponds to an average price of roughly $676 per square foot.

What is the average cost per square foot in Black Rock Cohasset?

In 2026, homes in Black Rock Cohasset sell for an average of around $676 per square foot, with a typical range between $642.2 and $709.8 per square foot, depending on the property’s location, condition, and lot size.

What is the average home size in Black Rock?

The average home size in Black Rock Cohasset is about 4288 square feet, with an estimated 2026 value around $2,636,298.



Neighborhoods close to Black Rock Cohasset, MA

Oakdale Dedham, MA372 $ / ft²
Dover Center Dover, MA587 $ / ft²
Downtown Franklin Franklin, MA251 $ / ft²
Ponkapoag Canton, MA482 $ / ft²
North Bellingham Bellingham, MA245 $ / ft²
Asbury Grove South Hamilton, MA402 $ / ft²
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