300 JAY STREETNew York CityBrooklyn
300 JAY STREET Construction Projects
4 permit-backed projects at 300 JAY STREET, Brooklyn, New York City. Review project history, reported costs, and businesses associated with this address.
0 projects0 businesses$6,700 – $2,131,055 range
Reported project costs at 300 JAY STREET
Based on real permit filings — actual project costs, not estimates.
Antenna Work at 300 Jay Street, Brooklyn
Antenna · Downtown Brooklyn-DUMBO-Boerum Hill
$6,700
August 17, 2026
Mechanical System Upgrade at 300 Jay Street, Brooklyn
Mechanical Systems · Downtown Brooklyn-DUMBO-Boerum Hill
$187,112
August 14, 2026
General Construction at 300 Jay Street, Brooklyn
General Construction · Downtown Brooklyn-DUMBO-Boerum Hill
$670,117
August 13, 2026
1 more projects with pricing in 300 JAY STREET
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