Skip to content

312 21 Street, Brooklyn

Brooklyn • Block 00898 • Lot 0014 • Zip: 11215

Address

Primary address: 312 21 Street, Brooklyn
Borough: Brooklyn
Zip code: 11215
Block: 00898
Lot: 0014
BBL: 3008980014
Unified address ID: 3008980014

Land use and zoning

Land use: One & Two Family Buildings
Zoning: R6B (Residential)
Lot type: Inside
Lot area: 1,786 sq ft
Lot dimensions: 17 ft x 100 ft
Built FAR: 1.14
Max residential FAR: 2
Max facility FAR: 2
School district: 15

Building

Building class: Two Family Dwellings - Frame (B2)
Year built: 1940
Last altered: 1940
Floors: 2
Total units: 2
Residential units: 2
Building area: 2,040 sq ft
Building dimensions: 17 ft x 35 ft
Basement: Above grade full basement
Owner: MASON, CHRISTOPHER SAWYER

Latest assessment

Assessment year: 2018/19
Tax class: 1 - 3 Unit Residence
Market value: $1,384,000
Total assessment: $18,270
Land assessment: $3,445
Exempt total: $1,460
Assessment owner: MASON, CHRISTOPHER SA

Neighborhood

The area this lot falls inside, and the commute Hoodkit measures from it.

Neighborhood Sunset Park
District Brooklyn

Getting around

Estimated 3 days ago
Nearest station
45 St N W R

About 6 minutes on foot · 374 m

  • Downtown Brooklyn 28 min 6 walking, 22 riding
  • Fulton Street 38 min 6 walking, 32 riding
  • Union Square 39 min 6 walking, 33 riding
  • Times Square 44 min 6 walking, 38 riding
  • Grand Central 49 min 6 walking, 43 riding
  • Penn Station 49 min 6 walking, 43 riding

Around this address

Transit and places within 0.5 miles of the lot.

Getting out

Updated less than a minute ago
Subway
Railroad
Ferry
Bus
Citi Bike

Places nearby

Hoodkit's own ranking, not the closest first

Activity

Sales, filings, permits and violations from every dataset, in one order.

2026

  1. DOB NOW filing Jun 16, 2026 $91,000

    Alteration CO

    Approved

  2. DOB NOW filing May 26, 2026 $62,486

    Alteration CO

    Approved

  3. DOB NOW filing Apr 30, 2026 $470,200

    Alteration CO

    Approved

2025

  1. DOB NOW filing Jul 11, 2025 $58,350

    Alteration CO

    Permit Entire

  2. DOB NOW filing Jul 11, 2025 $91,000

    Alteration CO

    Permit Entire

  3. DOB NOW filing Jul 11, 2025 $470,200

    Alteration CO

    Permit Entire

2010

  1. Sale Jul 7, 2010 $630,000

    Changed hands

    312 21ST STREET

Property Contacts

Contact information aggregated from multiple government sources

3

Recent Building Permits

Owner information from recent DOB NOW filings

Owner
BNYDC
BROOKLYN, NY, 11215
DOB NOW 06/16/2026
4

Deed Records

Parties from ACRIS deed and mortgage records

MORTGAGER/BORROWER
MASON, CHRISTOPHER S
ACRIS 10/09/2024
MORTGAGEE/LENDER
BANK OF AMERICA, N.A.
ACRIS 10/09/2024
MORTGAGEE/LENDER
FIRST AMERICAN MORTGAGE SOLUTIONS LLC
ACRIS 10/09/2024
MORTGAGER/BORROWER
KUZMOWYCZ, TATIANA L
ACRIS 10/09/2024
MORTGAGEE/LENDER
NAVY FEDERAL CREDIT UNION
820 FOLLIN LANE
VIENNA, VA, 22180
ACRIS 09/19/2024
MORTGAGEE/LENDER
BANK OF AMERICA NA
100 NORTH TRYON STREET
CHARLOTTE, NC, 28255
ACRIS 10/13/2015
PARTY 1
MASON, A/K/A CHRISTOPHER SAWYER
312 21ST STREET
BROOKLYN, NY, 11215
ACRIS 07/02/2015
MORTGAGOR/BORROWER
MASON, CHRISTOPHER SAWYER
312 21ST ST
APT 2
BROOKLYN, NY, 112156406
ACRIS 06/21/2012
ASSIGNOR/OLD LENDER
USAA FEDERAL SAVINGS BANK
2000 MIDLANTIC DRIVE
SUITE 300-SV03
MT. LAUREL, NJ, 08054
ACRIS 06/15/2012
ASSIGNOR/OLD LENDER
MORTGAGE ELECTRONIC REGISTRATION SYSTEMS, INC.
P.O. BOX 2026
FLINT, MI, 485012026
ACRIS 06/15/2012

Show all recorded documents

5

Property Records

Owner information from assessment and PLUTO records

Assessment Owner
MASON, CHRISTOPHER SA
Assessment Roll
PLUTO Owner
MASON, CHRISTOPHER SAWYER
PLUTO