258-270 K street is an exceptionally rare corner lot development opportunity with multiple curb cuts in the heart of South Boston. 258-266 K street is formally the site of the beloved Joseph's Bakery and consists of 3700 usable sf + basement on a 5368 sf lot. 268-270 K street, the adjacent building is a 3228 sf well maintained 2-family on a 6603 sf lot. Additionally, this parcel has 10 gated parking spaces, an extreme rarity in Southie! The sale of the 2 parcels would give the buyer a combined 11,971 sf lot. Located in the South Boston Neighborhood MFR zoning district, there is a wide array of allowed & conditional uses for redevelopment. With approval, highest & best use is expected to be a fully residential conversion or a mixed use retail/residential conversion. The multifamily residential subdistrict dimensional regulations including FAR, frontage, building height, etc. can be found in article 68 table D on the Boston planning and development agency website.
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Rising School
College Ready Curriculum
Diverse Student Body
Grades 05-12
F
Blackstone Elementary School
1.8 mi
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#809 of 824 |
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-31.9 below state avg
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Moderate
Grades PK-06
C-
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1.9 mi
|
#728 of 824 |
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-24.5 below state avg
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Diverse
Diverse Student Body
Grades PK-06
M
Middle Schools
10 schools
Middle School Academy
0.7 mi
A
Uncommon Schools - Roxbury Preparatory Dorchester Campus Middle School
2.5 mi
|
#4 of 16 |
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-16.3 below state avg
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Diverse
Rising School
College Ready Curriculum
Grades 05-08
F
Higginson/Lewis K-8 School
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Dearborn Middle School
2.9 mi
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Grades 05-08
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C
Ohrenberger School
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Rising School
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Grades 03-08
UP Academy
0.7 mi
McCormack Middle
1.2 mi
H
High Schools
10 schools
C
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Early College Program
Rising School
Grades 07-12
C
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High Graduation Rate
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Cathedral High School
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B
Dearborn STEM Academy
2.3 mi
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#13 of 25 |
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Diverse
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• 242 athletes
Early College Program
Rising School
Grades 07-12
Newman School
2.6 mi
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A-
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High Graduation Rate
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College Ready Curriculum
Diverse Student Body
Grades 07-12
A+
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2.7 mi
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#2 of 25 |
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High Graduation Rate
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Strong Athletics
Diverse Student Body
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C-
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A+
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|
#19 of 346 |
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Rising School
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D
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3.4 mi
|
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Diverse
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Property History
Market Insights
Property Timeline
📋
Status: Active under contract
May 7, 2026
Pending → Active Under Contract
⏳
Pending Sale
May 7, 2026
Offer accepted, sale pending
📋
Status: Active under contract
Mar 15, 2026
Active → Active Under Contract
⏳
Pending Sale
Mar 13, 2026
Offer accepted, sale pending
🏠
Listed for Sale
Sep 23, 2025
$5,250,000
Original listing
Office: Leading Edge Real Estate
Date
Event
Price
Change
$/sqft
Details
05/07/2026
📋
Status: Active under contract
-
-
-
Pending → Active Under Contract
05/07/2026
⏳
Pending Sale
-
-
-
Offer accepted, sale pending
03/15/2026
📋
Status: Active under contract
-
-
-
Active → Active Under Contract
03/13/2026
⏳
Pending Sale
-
-
-
Offer accepted, sale pending
09/23/2025
🏠
Listed for Sale
$5,250,000
-
-
Original listing
Price & Status History
Date
Event
Price
Change
May 21, 2026
Sold
$5,250,000
—
May 7, 2026
Status: Active under contract
$0
—
Mar 15, 2026
Status: Active under contract
$0
—
Sep 23, 2025
New Listing Added
$5,250,000
—
Market Statistics
Days on Market
238 days
Price per Sq Ft
$1,626
Tax History
Year
Taxes
Assessment
2025
$47,481
$2,940,900
Financial Details
Annual Property Tax
$47,481
Tax Year 2025
Assessed Value
$2,940,900
Listing Information
Listing AgentAldo Masciave
Listing OfficeLeading Edge Real Estate
Agent MLS IDA8000579
Office MLS IDAN4646
Listing Data UpdatedMay 21, 2026 3:05 AM EDT
Listing information is deemed reliable but not guaranteed. Data provided by MLS Property Information Network, Inc. All information should be independently verified.