NYC Permit AlertsBy BuildPermitGuide

Neighborhoods › Clinton Hill

421 Grand Avenue, Brooklyn: 8 building jobs on file

Building Identification Number 3056806 · Clinton Hill. Newest first.

Facade/scaffold work: Proposed installation of temporary pipe scaffold as per…, est. $8K
Permit Entire · filed Oct 14, 2026 · est. $8,000
Mechanical/plumbing work: Proposed plumbing work on cellar, basement, 1st…, est. $50K
QA Failed · filed Jul 22, 2026 · est. $50,000
Mechanical/plumbing work: Installation of sprinkler system as shown on plans…, est. $50K
Approved · filed Jul 21, 2026 · est. $50,000
Alteration: Submit temporary construction fence work at open space. no change…, est. $20K
Permit Entire · filed Jun 18, 2026 · est. $20,000
Facade/scaffold work: The drawings herein are related to an alteration to the…, est. $85K
Permit Entire · filed Jun 1, 2026 · est. $85,248
Facade/scaffold work: The drawings herein are related to an alteration to…, est. $30K
Permit Entire · filed May 31, 2026 · est. $30,000
Interior renovation: Propose interior renovation work at cel., bas., 1st…, est. $278K
Permit Entire · filed Dec 22, 2025 · est. $278,240
Interior renovation: Application is filed for a conversion from 17 furnished…, est. $750K
Permit Entire · filed Nov 25, 2025 · est. $750,020

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