258-270 K StreetBoston, MA 02127MLS Number 73434171

  • Price: $5,250,000
  • Est. Mortgage of $/month
  • 236 Days on Market
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$/month over payments
Federal 30-year interest rate: 6.36% last updated on May 14, 2026
* All Figures are estimates. Check with your bank or proposed mortgage company for actual interest rates.
This product uses the FRED® API but is not endorsed or certified by the Federal Reserve Bank of St. Louis.
  • 5Bedrooms
  • 0.27Acreage
  • 4Bathrooms
  • 1950Year Built
Contingent
258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127258-270 K Street Boston MA 02127
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Cape Coastal Sotheby's International Realty
Cape Coastal Sotheby's International Realty
Office: 508-477-6688
540 Falmouth Road (Mashpee Rotary)
Mashpee, MA 02649
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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Basic Information

  • Contingency Pending P&S
  • Listing Terms Contract
  • Lot Features Other
  • Mls StatusContingent

Location

  • Address258-270 K Street
  • Building Number258-270
  • CountySuffolk
  • StateMA
  • StreetK Street
  • TownBoston
  • Zip02127

Utilities

  • Sewer Public Sewer
  • Water Source Public

Amenities

  • Other AmenitiesBasement, Fireplace

Water Body

  • Miles to Beach2
  • Waterfront Features 1 to 2 Mile To Beach

Tax Information

  • Tax Assessed Value $2,940,900
  • Tax Year 2025
  • Taxes$47,481

Basic Information

  • List Price$5,250,000
  • MLSPIN 73434171
  • Modification Date05/07/2026
  • Property SubType2 Family - 2 Units Up/Down
  • Purchase Contract Date05/07/2026

Property

  • Acreage0.27

Property Information

  • Building Area Source Public Records
  • Living Area 3,228
  • Lot Size Square Feet 11,971
  • Lot Size Units Acres
  • Square Feet3,228

Parking

  • Parking Spaces10

Rooms

  • Bathroom4
  • Bathrooms Total Decimal 3.5
  • Bedrooms5
  • Full Bath3
  • Half Baths1

Building

  • BasementPartially Finished
  • Building Area Units Square Feet
  • FireplaceYes
  • Fireplaces Total 1
  • FoundationConcrete Perimeter, Stone, Brick/Mortar
  • Levels 3
  • Rooms14
  • Stories3
  • Units2
  • Year Built1950
  • Year Built Details Approximate
  • Year Built Source Public Records

Other

  • Date Listed09/23/2025
  • Farm Land Area Units Square Feet
  • View Count3

Driving Directions

Listed by Aldo Masciave of Leading Edge Real Estate

Boston, MA Demographics

There is no data available

Boston, MA Real Estate Market Data

There is no data available

Boston, MA Schools

School NameDistanceTypeGrades

The property listing data and information, or the Images, set forth herein were provided to MLS Property Information Network, Inc. (MLSPIN) from third party sources, including sellers, lessors and public records, and were compiled by MLSPIN. 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 or leasing 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 or leasing. MLSPIN 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.

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