821 56th Street, Brooklyn
Apartment building · 5 units · built c. 1920 · Block 5679, Lot 71.
Building permits
- Alteration, filed May 12, 2023, estimated cost $24K, described as “File general construction work at cellar to remove minor partition, install new partitions, repair and paint as per plan. No change in use, egress or occupancy.”
- Alteration, filed Jul 15, 2022, estimated cost $20K, described as “Plumbing and sprinkler application filed in conjunction with JOB#B00650740. Proposed plumbing and sprinkler work on cellar, 1ST, thru 4RD floor, and bulkhead as per plan. No change in use, bulk, egress or occupancy.”
- Alteration, filed Jul 8, 2022, estimated cost $500K, described as “This application is to file foundation & earthwork in conjunction with alt-co new building job #: B00650740.”
- Alteration, filed Apr 26, 2022, estimated cost $1K, described as “This application is to file structural work type in conjunction with alt-co NB job #: B00650740.”
- Alteration, filed Mar 1, 2022, estimated cost $20K, described as “This application is filed to add construction fence & sidewalk shed work in conjunction with d.o.b. Alt-co application #: B00650740. No change in use, egress or occupancy.”
- Major Renovation — Enlargement, filed Dec 22, 2021, 3 units added, 4 stories, described as “Proposed vertical and horizontal enlargement of an existing 2-story two-family building to 4-story five-family mixed-use building as per plan. Obtain new certificate of occupancy.”
- Alteration, filed Jul 23, 2021, estimated cost $7K, described as “Proposed to remove plumbing & gas fixtures on cel. Remedy to cure ecb violations #: 35378592P, 35378593R. Ot work under DOB now job: B00533938. No change in use, bulk, egress or occupancy.”
- Alteration, filed Jul 23, 2021, estimated cost $10K, described as “Proposed interior renovation on cel. Remove illegal partitions. Ceiling, flooring & partition works as per plan. Remedy to cure ecb violations #: 35378593R & 35378592P. No change in use, bulk, egress or occupancy.”
Property taxes
- Assessment
- $398,700
- 2026–27 tax
- $9,757
- Market value (city estimate)
- $886,000
- Taxable value
- $78,441
- Assessed land
- $90,000
- Assessed improvements
- $308,700
Zoning
R6: floor area ratio 2.73 built, above the 2.43 base zoning allows, which bonuses, transfers or older rules can permit.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Aug 2, 2021: $1,400,000
Open-market sales since 2016, from the Department of Finance’s sales files.