NY Property Records
263 Prospect Avenue
263 Prospect Avenue
Brooklyn · Kings County · 11215
03 · Elevator AptsSold $22,500,000 · Jun 2021 ↗
Owner of record
OwnerGowanus Cubes, LLC
Assessment · 2025 roll
Land assessed$3,188,250
Total assessed$14,709,600
Est. annual tax$1,838,700 (2027, excl. special districts)
Building
StyleSemi-fireproof (Without Stores)
Year built2024
Living area173,288 sq ft
Lot
Size1.63 acres (GIS)
Frontage × depth20 × 141 ft
Lot sq ft70,847
Zoning
DistrictR6B
FAR3.46 built · 2.0 max residential · 2.0 max facility
Zoning map16d
Recorded documents · 27
EASEMENT
Jan 27, 2026
grantor/seller Gowanus Cubes LLC
grantee/buyer The City Of New York
View on ACRIS ↗
AGREEMENT
$37,500,000
Sep 3, 2025
party 1 Cos Management & Realty, Inc.; Gowanus Cubes, LLC +3
party 2 263 Prospect 2 Funding LLC
View on ACRIS ↗
ASSIGNMENT OF LEASES AND RENTS
$12,500,000
Sep 3, 2025
assignor Cos Management & Realty, Inc.; Gowanus Cubes, LLC +3
assignee 263 Prospect 2 Funding LLC
View on ACRIS ↗Show all 27
ASSIGNMENT, MORTGAGE
Sep 3, 2025
assignor/old lender 263 Prospect Ave Funding LLC
assignee/new lender 263 Prospect 2 Funding LLC
View on ACRIS ↗
TERMINATION OF ASSIGN OF L&R
Sep 3, 2025
party one Cos Management & Realty, Inc.; Gowanus Cubes, LLC +3
party two 263 Prospect Ave Funding LLC
View on ACRIS ↗
MORTGAGE
$12,500,000
Sep 3, 2025
mortgagor/borrower Cos Management & Realty, Inc.; Gowanus Cubes, LLC +3
mortgagee/lender 263 Prospect 2 Funding LLC
View on ACRIS ↗
MORTGAGE
$7,500,000
Sep 3, 2025
mortgagor/borrower Cos Management & Realty, Inc.; Gowanus Cubes, LLC +3
mortgagee/lender 263 Prospect 2 Funding LLC
View on ACRIS ↗
ASSIGNMENT OF LEASES AND RENTS
$37,500,000
Sep 3, 2025
assignor Cos Management & Realty, Inc.; Gowanus Cubes, LLC +3
assignee 263 Prospect 2 Funding LLC
View on ACRIS ↗
ASSIGNMENT, MORTGAGE
Sep 3, 2025
assignor/old lender 263 Prospect 2 Funding LLC
assignee/new lender Northeast Bank
View on ACRIS ↗
CORRECTION DEED
Oct 3, 2024
grantor/seller Gowanus Cubes, LLC
grantee/buyer Gowanus Cubes, LLC
View on ACRIS ↗
CORRECTION DEED
Mar 1, 2024
grantor/seller Gowanus Cubes, LLC
grantee/buyer Gowanus Cubes, LLC
View on ACRIS ↗
ASSIGNMENT, MORTGAGE
Sep 21, 2023
assignor/old lender 263 Prospect Ave Funding LLC
assignee/new lender Northeast Bank
View on ACRIS ↗
MORTGAGE
$30,000,000
Sep 7, 2023
mortgagor/borrower Cos Management & Realty, Inc.; Gowanus Cubes, LLC +3
mortgagee/lender 263 Prospect Ave Funding LLC
View on ACRIS ↗
ASSIGNMENT OF LEASES AND RENTS
$30,000,000
Sep 7, 2023
assignor Cos Management & Realty, Inc.; Gowanus Cubes, LLC +3
assignee 263 Prospect Ave Funding LLC
View on ACRIS ↗
EASEMENT
Jun 2, 2022
grantor/seller Gowanus Cubes, LLC
grantee/buyer 595 5th Ave Realty LLC
View on ACRIS ↗
SUNDRY AGREEMENT
Nov 4, 2021
party 1 Alan Aiello, Trastee; Theresa Aiello Trust
party 2 Gowanus Cubes, LLC
View on ACRIS ↗
DEED
$22,500,000
Jul 14, 2021
grantor/seller Prospect Hall Realty Inc,
grantee/buyer Gowanus Cubes, LLC
View on ACRIS ↗
ASSIGNMENT, MORTGAGE
Oct 19, 1995
assignor/old lender Atlantic Bank
assignee/new lender Litton Loan Servicing Inc
View on ACRIS ↗
DEED
Jul 27, 1988
grantor/seller Montijo, Osvaldo; Montijo, Sylvia
grantee/buyer Halkias, Elias
View on ACRIS ↗
MORTGAGE
$135,000
Jul 27, 1988
mortgagor/borrower Halkias, Elias
mortgagee/lender Atlantic Bank Of Ny
View on ACRIS ↗
DEED
May 14, 1974
grantor/seller Olivero Tomasa
grantee/buyer Montijo Osualdo; Montijo Sylvia
View on ACRIS ↗DOB violations — total 4 · open 4 · dismissed 0
Benchmarking - LL84
Active
Jun 22, 2026
BIS ↗Energy Grade - LL33
Active
Mar 6, 2026
BIS ↗Benchmarking - LL84
Active
Dec 3, 2025
BIS ↗DOB complaints — total 4 · open 0 · closed 4
Show all 4
No HPD violations on file.
Deed & identifiers
SBL3010530020
SWIS610100
Parcel ID6101003010530020
Who owns 263 Prospect Avenue?
263 Prospect Avenue, Brooklyn is owned by Gowanus Cubes, LLC per the 2025 NYS assessment roll. It last sold for $22,500,000 in Jun 2021.
Nearby on Prospect Avenue
Public record, NYS tax roll 2025. Values are the assessor's, not an appraisal. Provided for informational purposes only — accuracy and completeness are not warranted or guaranteed; verify against official sources before relying on it. Disclaimer · Request redaction
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