$6,250,000
PENDING

Estimated payment $33,964/month

Total Views 5
6 Beds
6 Baths
-- Sq Ft
-- Price per Sq Ft

Highlights

  • Green Building
  • 3-minute walk to 7 Avenue (B,Q Line)
  • Central Air
  • P.S. 9 The Sarah Smith Garnet School Rated A
  • Deck
  • 3-minute walk to Dean Playground

About This Home

121 Saint Marks Avenue

On a picturesque, tree-lined block in the heart of Prospect Heights, 121 Saint Marks Avenue is a classic 21-foot-wide Brooklyn brownstone offering exceptional scale, flexibility, and opportunity.

Set on an extra-deep block, the home unfolds across approximately 4,000 square feet and is currently configured as an owner's triplex over a private one-bedroom garden apartment. Behind its handsome historic facade lies a residence defined by grand proportions, soaring ceilings, and the timeless character that makes Brooklyn townhouses so beloved.

The owner's triplex begins on the gracious parlor level, where tall windows fill the living room with natural light and original details speak to the home's historic charm. A formal dining room creates an elegant setting for entertaining, flowing naturally toward the kitchen and out to a deck overlooking the garden below. It is a floor designed equally for lively gatherings and quiet evenings at home.

Upstairs, the second and third floors offer a generous and flexible layout with multiple bedrooms and the potential for home offices, libraries, or creative spaces. The home's impressive 21-foot width allows each room to feel open and comfortable, a rarity even among Brooklyn townhouses.

Below, the garden level is configured as a one-bedroom apartment with its own entrance and direct access to the garden, ideal for rental income, guests, or conversion into a spectacular single-family residence.

The property will be delivered vacant, presenting a rare opportunity for the next owner to move right in, create a custom townhouse, or design the ideal live-plus-income configuration.

Just moments from the cafés and restaurants of Vanderbilt Avenue, the cultural energy of the Barclays Center district, and the green expanses of Prospect Park, the location offers the very best of Brooklyn living. Multiple subway lines nearby provide easy access to Manhattan and beyond.

Listing Agent

Jessica Buchman

Corcoran Group License #10301200330 Listed on: 04/21/2026

Corcoran Group

Co-Listing Agent

Bryan Rettaliata

Corcoran Group License #10401235373

Co-Listing Agent

Susanna Studwell

Corcoran Group License #10401324915

Property Details

Home Type

  • Multi-Family

Est. Annual Taxes

  • $9,924

Year Built

  • Built in 1910

Lot Details

  • 3,092 Sq Ft Lot
  • Lot Dimensions are 147.25x21.00

Home Design

  • Entry on the 1st floor

Interior Spaces

  • 3-Story Property
  • Decorative Fireplace
  • Basement

Bedrooms and Bathrooms

  • 6 Bedrooms

Laundry

  • Laundry in unit
  • Washer Dryer Allowed
  • Washer Hookup

Additional Features

  • Green Building
  • Deck
  • Central Air

Community Details

  • 3 Units
  • Prospect Heights Subdivision

Listing and Financial Details

  • Legal Lot and Block 0068 / 01143

Property Details

Home Type

Multi-Family

Est. Annual Taxes

$9,924

Year Built

Built in 1910

Lot Details

3,092 Sq Ft Lot

Listing Details

  • Property SubType: Multi Family
  • Property Type: Residential
  • Neighborhood: Prospect Heights
  • Entry Level: 1
  • Structure Type: Townhouse
  • Special Features: None
  • Property Sub Type: MultiFamily
  • Stories: 3

Interior Features

  • Interior Features: Smoke Free
  • Appliances: Washer Dryer Allowed
  • Fireplace Features: Decorative
  • Fireplaces: 1
  • Fireplace: Yes
  • Living Area Units: Square Feet
  • Basement: Yes
  • Basement: Other

Beds/Baths

  • Full Bathrooms: 4
  • Half Bathrooms: 2
  • Bathrooms Integer: 5
  • Bedrooms: 6

Exterior Features

  • View: Other
  • View: No
  • Exterior Features: Private Outdoor Space Over 60 Sqft
  • Patio/Porch Features: Deck

Garage/Parking

  • Garage: No

Utilities

  • Laundry Features: Building Other, Washer Hookup, In Unit
  • Green Building Features: Green Building
  • Cooling: Central Air
  • Cooling: Yes

Condo/Co-op/Association

  • Common Interest: None

Lot Info

  • Lot Size Units: Square Feet
  • Lot Size Area: 3092.25
  • Lot Size Dimensions: 147.25x21.00

Rental Info

  • Land Lease: No

Building Info

  • New Construction: No
  • Units: 3
  • Total Stories: 3
  • Year Built: 1910

Tax Info

  • Tax Block: 01143
  • Tax Lot: 0068
  • Tax Annual: 9924.0

Multi Family

  • Building Area Units: Square Feet

Map

Range of Values:

--
Value Increase
--
Percent Increase
--
Adjusted for Inflation
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Home Values in the Area

Source: Public Records

Average Home Value in this Area





Source: Public Records

Tax History

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2026 $10,046 $212,340 $55,080 $157,260
2025 $9,931 $221,220 $55,080 $166,140
2024 $9,931 $211,500 $55,080 $156,420
2023 $9,489 $255,960 $55,080 $200,880
2022 $8,812 $222,540 $55,080 $167,460
2021 $8,777 $242,580 $55,080 $187,500
2019 $8,620 $213,540 $55,080 $158,460
2018 $7,639 $38,934 $8,818 $30,116
2017 $7,199 $36,784 $7,875 $28,909
2016 $6,638 $34,754 $8,413 $26,341
2015 $3,966 $34,735 $12,142 $22,593
2014 $3,966 $34,338 $14,402 $19,936
Source: Public Records

Property History

Date Event Price List to Sale Price per Sq Ft
04/21/2026 04/21/26 Pending -- -- --
04/21/2026 04/21/26 For Sale $6,250,000 -- --
Source: Real Estate Board of New York (REBNY)

Purchase History

Date Type Sale Price Title Company
Deed -- --
Deed -- --
Deed $417,000 --
Deed $417,000 --
Source: Public Records

Source: Real Estate Board of New York (REBNY)

MLS Number: RLS20085734

Real Estate Board of New York (REBNY)

APN: 01143-0068

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