How much do condos cost at 118 B St?

In the past 12 months, 18 condos sold at 118 B St (118 B St, Boston) for a typical $974,500, or $1,071 per square foot. Sales ranged from $600,000 to $2,900,000.

How fast do condos sell at 118 B St?

Units that sold in the past 12 months took a typical 11 days to get an accepted offer, and 61% sold for their first asking price or more. In South Boston overall, it took 23 days.

What are the condo fees at 118 B St?

The typical monthly condo fee at 118 B St is $346, about $0.45 per square foot a month, based on the fees filed with its listings.

How many condos are for sale at 118 B St right now?

1 unit is for sale, asking from $999,000 to $999,000.

When was 118 B St built, and how many units does it have?

118 B St was built in 2026 and has 33 units, with homes up to the 5th floor, according to its listings.

Building report · South Boston, Boston

118 B St

Boston, MA 02127

The Observer's take · Nov 8, 2026New construction at a 26% premium for South Boston: $1,070 a square foot, against $852 for the neighborhood. Most buyers still paid full asking.

18 condos sold at 118 B St in the past 12 months, for a typical $975K, or $1,071 a square foot. That's 26% more per square foot than the typical condo in South Boston. Right now, 1 is for sale.

2026 built
33 units
5 floors with homes
#8 in Greater Boston by condo sales

Unit 204, for sale at $999,000. Listed by Kevin Caulfield, Compass. MLS #73488340.

$975K: typical sale price, past 12 months
$1,071: per square foot
11 days: typical time to an accepted offer
61%: sold for asking or more
1: for sale now
$346: typical monthly condo fee

118 B St sells for 26% more per square foot than South Boston

Condo sales in the past 12 months: this building against all 325 condo sales in South Boston.

South Boston 118 B St

Price per sq ft ($)8521,071 +26%
Days to an accepted offer2311 −52%

Source: Verified market data; analysis by the Observer Markets Desk.

Show the numbers

	118 B St	South Boston
Typical price per sq ft	$1,071	$852
Typical days to an accepted offer	11	23
Sold for asking or more	61%	29%

For sale now1 unit, 3.0% of the building

$999,000Cut $250K
Unit 204, floor 2
2 bed · 2 bath · 1,143 sq ft
$874/sq ft · 236 days listed
Active · Condo · MLS #73488340
118 B Street #204, Boston, MA
Listed by Kevin Caulfield, Compass

What soldPast 12 months, newest first

Closed	Unit	Size	Price	$/sq ft	vs. first ask
Nov 5	Unit 302MLS #73548901 · Compass	2 bed, 1,232 sq ft	$1,175,000	$954	+4.4%
Sep 30	Unit 26MLS #73550228 · Compass	1 bed, 747 sq ft	$765,000	$1,024	−3.0%
Sep 10	Unit 203MLS #73548897 · Compass	2 bed, 1,096 sq ft	$1,050,000	$958	−4.5%
Aug 13	Unit 201MLS #73500791 · Compass	1 bed, 713 sq ft	$699,000	$980	−6.7%
Jul 31	Unit 305MLS #73519314 · Compass	1 bed, 812 sq ft	$810,000	$998	−1.8%
Jul 31	Unit 103MLS #73512536 · Compass	2 bed, 1,027 sq ft	$899,000	$875	+0.0%
Jul 29	Unit 307MLS #73488339 · Compass	1 bed, 747 sq ft	$810,000	$1,084	+0.0%
Jul 21	Unit 209MLS #73519307 · Compass	2 bed, 1,031 sq ft	$1,125,000	$1,091	−1.2%
Jul 15	Unit 309MLS #73491949 · Compass	2 bed, 1,031 sq ft	$1,150,000	$1,115	+0.4%
Jul 15	Unit 202MLS #73519304 · Compass	2 bed, 1,232 sq ft	$1,100,000	$893	−8.3%

Show all 18 sales

Closed	Unit	Size	Price	$/sq ft	vs. first ask
Jul 6	Unit 401MLS #73493035 · Compass	1 bed, 713 sq ft	$819,000	$1,149	+0.0%
Jun 30	Unit 303MLS #73488341 · Compass	2 bed, 1,096 sq ft	$1,165,000	$1,063	+0.0%
Jun 29	Unit 502MLS #73490343 · Compass	3 bed, 2,490 sq ft	$2,900,000	$1,165	+0.0%
Jun 15	Unit 408MLS #73494211 · Compass	2 bed, 1,193 sq ft	$1,280,000	$1,073	+0.0%
Jun 10	Unit 407MLS #73494144 · Compass	1 bed, 747 sq ft	$820,000	$1,098	+0.0%
Jun 10	Unit 101MLS #73512535 · Compass	1 bed, 554 sq ft	$600,000	$1,083	+0.2%
Jun 9	Unit 406MLS #73490347 · Compass	1 bed, 747 sq ft	$799,000	$1,070	−3.6%
Jun 5	Unit 409MLS #73490199 · Compass	2 bed, 1,031 sq ft	$1,165,000	$1,130	+0.0%

Where it isWith nearby buildings we track

Questions people ask

How much do condos cost at 118 B St?: In the past 12 months, 18 condos sold at 118 B St (118 B St, Boston) for a typical $974,500, or $1,071 per square foot. Sales ranged from $600,000 to $2,900,000.
How fast do condos sell at 118 B St?: Units that sold in the past 12 months took a typical 11 days to get an accepted offer, and 61% sold for their first asking price or more. In South Boston overall, it took 23 days.
What are the condo fees at 118 B St?: The typical monthly condo fee at 118 B St is $346, about $0.45 per square foot a month, based on the fees filed with its listings.
How many condos are for sale at 118 B St right now?: 1 unit is for sale, asking from $999,000 to $999,000.
When was 118 B St built, and how many units does it have?: 118 B St was built in 2026 and has 33 units, with homes up to the 5th floor, according to its listings.

About these numbers

Every figure on this page comes from verified market data for 118 B St, Boston, refreshed November 8, 2026, and updates every morning. “Typical” means the median. Price per square foot uses the living area filed with each listing. Condo fees are monthly. Sales history in our data starts in late 2025.

Cite as: “118 B St building report,” Boston Real Estate Observer, https://bostonrealestateobserver.com/buildings/boston/118-b-st/ (data as of November 8, 2026).

The property listing data and information, or the Images, set forth herein were provided to MLS Property Information Network, Inc. from third party sources, including sellers, lessors, landlords and public records, and were compiled by MLS Property Information Network, Inc. The property listing data and information, and the Images, are for the personal, non commercial use of consumers having a good faith interest in purchasing, leasing or renting listed properties of the type displayed to them and may not be used for any purpose other than to identify prospective properties which such consumers may have a good faith interest in purchasing, leasing or renting. MLS Property Information Network, Inc. and its subscribers disclaim any and all representations and warranties as to the accuracy of the property listing data and information, or as to the accuracy of any of the Images, set forth herein.

Figures refresh every morning. This page was last updated November 8, 2026.