21 Nostrand Avenue, Brooklyn
Apartment building · 72 units · built 1958 · Block 1719, Lot 1.
Building permits
- New Building, filed Jul 1, 2021, estimated cost $15.0M, 1 story, described as “NYCHA BOILERS- New 6,950sf building to house the central boiler plant for Mary Houses. Building is 1 story, height varying from approx. 17' to approx. 35'.”
- Alteration, filed Aug 5, 2025, estimated cost $1K, described as “Proposed installation of temporary pipe scaffold as per plans. Work shall comply with chapter #33 of 2022 the NYC building code. No change in use, occupancy, or egress under this application.”
- Alteration, filed Jan 30, 2025, estimated cost $1K, described as “Installation of temporary heavy duty sidewalk shed as per plans. No change in use, egress or occupancy. Sidewalk shed shall comply with chapter #33 of the NYC building code. Live load 300PSF.”
- Alteration, filed Jan 22, 2024, described as “Material hoist system at 452 marcy avenue, brooklyn.”
- Alteration, filed Jan 22, 2024, described as “Material hoist system at 482 marcy avenue, brooklyn.”
- Alteration, filed Dec 6, 2023, estimated cost $165K, described as “Proposed conversion of an existing basketball court into a temporary parking facility for 23 cars (21 & 2 handicap spaces). Provide new concrete tire stops as indicated, no increase in bldg footprint, no change in grading, use or occupancy…”
- Alteration, filed Oct 31, 2023, estimated cost $18K, described as “New exterior concrete pads in preparation for future prefabricated waste receptacles. No change in use, egress or occupancy.”
- Alteration, filed Jul 8, 2023, estimated cost $20K, described as “Installation of temporary construction fence at 609 park avenue, brooklyn as indicated on plans. There will be no change in the use, egress, or occupancy under this application.”
- Alteration, filed Jul 8, 2023, estimated cost $20K, described as “Installation of temporary construction fence at 603 park avenue, brooklyn as indicated on plans. There will be no change in the use, egress, or occupancy under this application.”
- Alteration, filed Jul 8, 2023, estimated cost $20K, described as “Installation of temporary construction fence at 532 flushing avenue, brooklyn as indicated on plans. There will be no change in the use, egress, or occupancy under this application.”
- Alteration, filed Nov 21, 2022, estimated cost $10K, described as “Installation of pipe scaffold at 482 marcy avenue, brooklyn as indicated on plans. There will be no change in the use, egress, or occupancy under this application.”
- Alteration, filed Nov 21, 2022, estimated cost $10K, described as “Installation of pipe scaffold at 502 marcy avenue, brooklyn as indicated on plans. There will be no change in the use, egress, or occupancy under this application.”
- Alteration, filed Nov 21, 2022, estimated cost $10K, described as “Installation of pipe scaffold at 462 marcy avenue, brooklyn as indicated on plans. There will be no change in the use, egress, or occupancy under this application.”
- Alteration, filed Nov 21, 2022, estimated cost $10K, described as “Installation of pipe scaffold at 472 marcy avenue, brooklyn as indicated on plans. There will be no change in the use, egress, or occupancy under this application.”
- Alteration, filed Nov 20, 2022, estimated cost $10K, described as “Installation of pipe scaffold at 452 marcy avenue, brooklyn as indicated on plans. There will be no change in the use, egress, or occupancy under this application.”
- Alteration, filed Nov 20, 2022, estimated cost $10K, described as “Installation of temporary construction fence at 472 marcy avenue, brooklyn as indicated on plans. There will be no change in the use, egress, or occupancy under this application.”
- Alteration, filed Nov 20, 2022, estimated cost $10K, described as “Installation of temporary construction fence at 502 marcy avenue, brooklyn as indicated on plans. There will be no change in the use, egress, or occupancy under this application.”
- Alteration, filed Nov 20, 2022, estimated cost $10K, described as “Installation of temporary construction fence at 482 marcy avenue, brooklyn as indicated on plans. There will be no change in the use, egress, or occupancy under this application.”
- Alteration, filed Nov 20, 2022, estimated cost $10K, described as “Installation of temporary construction fence at 462 marcy avenue, brooklyn as indicated on plans. There will be no change in the use, egress, or occupancy under this application.”
- Alteration, filed Nov 18, 2022, estimated cost $10K, described as “Installation of new sidewalk shed at 462 marcy avenue, brooklyn as indicated on plans. There will be no change in the use, egress, or occupancy under this application.”
- Alteration, filed Nov 18, 2022, estimated cost $10K, described as “Installation of new sidewalk shed at 472 marcy avenue, brooklyn as indicated on plans. There will be no change in the use, egress, or occupancy under this application.”
- Alteration, filed Nov 18, 2022, estimated cost $10K, described as “Installation of new sidewalk shed at 482 marcy avenue, brooklyn as indicated on plans. There will be no change in the use, egress, or occupancy under this application.”
- Alteration, filed Nov 18, 2022, estimated cost $10K, described as “Installation of new sidewalk shed at 452 marcy avenue, brooklyn as indicated on plans. There will be no change in the use, egress, or occupancy under this application.”
- Alteration, filed Nov 18, 2022, estimated cost $10K, described as “Installation of new sidewalk shed at 502 marcy avenue, brooklyn as indicated on plans. There will be no change in the use, egress, or occupancy under this application.”
- Alteration, filed Nov 18, 2022, estimated cost $10K, described as “Installation of temporary construction fence at 452 marcy avenue, brooklyn as indicated on plans. There will be no change in the use, egress, or occupancy under this application.”
39 more, older permits are in this building’s full list on the map.
Property taxes
- Assessment
- $26,583,300
- Market value (city estimate)
- $59,074,000
- Taxable value
- $0
- Assessed land
- $1,885,950
- Assessed improvements
- $24,697,350
Zoning
R6: floor area ratio 1.33 built, 2.43 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Board and land use applications
- Appeal (Board of Standards and Appeals 242-98-A): Appeal, Granted, filed Jul 8, 1998, decided Nov 16, 1999. Proposed use of roofed exterior rear stair in each building section as a second means of egress, rather than second interior stair in each building, is contrary to §27-366 of the NYC Building Code.