Groundbreak
.
Pro
Search…
⌘K
New York
New York, NY
MON, NOV 2
Filings 7d
927
Permits 7d
869
Deeds & loans 7d
29
Updates 7d
248
Building
1,159
Contacts
202,081
Ask
Groundbreak
Pro
New York / Projects
/
421 Hart Street
421 Hart Street
Approved
421 HART STREET, Brooklyn, NY 11221
Tracked since Jun 1, 2026
☆
Watch
Add to CRM ↗
Stage
Proposed
Jun 2026
Review
Approved
Building
Delivered
Value
Largest job on its permits
Size
units
Latest filing
Jun 23
2026 · Permit
General contractor
No GC named yet
Overview
Team
6
Timeline
3
Records
2
Trades
Property
Names, phones and emails on the team are locked. Pro shows every one, $27 a month.
Watch it free →
Companies
Pro names them
Company
Role
Phone
Email
Website
Bi
Owner
·
·
·
Ch
Engineer
·
·
·
Contacts on the filings
Pro names them
Jo
Applicant ·
Bu
·
Permit · Jun 23, 2026
As
Owner ·
Bi
·
Permit · Jun 23, 2026
Ra
Architect ·
BG
·
Permit · Jun 23, 2026
Ge
Architect ·
Ch
·
Permit · Jun 2, 2026