General Construction Project at 421 Grand Avenue, Brooklyn
421 GRAND AVENUE, BROOKLYN, 11238 · Clinton Hill
What was permitted
This general construction permit is for a significant conversion project in Brooklyn's Clinton Hill neighborhood. The scope involves transforming a property from 17 furnished rooms and 4 kitchenettes into 5 family dwelling units.
The permit was issued on June 18, 2026, with a substantial estimated project cost of $750,020. ACER CONSTRUCTION INC is the general contractor overseeing this conversion.
Homeowners and property owners in Clinton Hill can see major residential conversions costing upwards of $750,000.
What it cost
Issued
June 18, 2026
Expires
October 9, 2026
License
General Contractor
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Filed by ACER CONSTRUCTION INC · 80 permits across 25 neighborhoods
View the official permit record
Tracking number, work description, cost, and dates
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View the official permit record
Tracking number, work description, cost, and dates
| Tracking Number | 318408229 |
| Work Permit # | B01320919-I1-GC |
| Job Filing Number | — |
| Work Type | General Construction |
| Status | Permit Issued |
| Job Description | APPLICATION IS FILED FOR A CONVERSION FROM 17 FURNISHED ROOMS AND 4 KITCHENETTES TO 5 FAMILY. OBTAIN NEW CERTIFICATE OF OCCUPANCY. |
| Floor / Unit | Cellar, Basement, Floor Number(s) 1, Floor Number(s) 2, Floor Number(s) 3, Floor Number(s) 4 |
| Estimated Cost | $750,020 |
| Approved | June 1, 2026 |
| Issued | June 18, 2026 |
| Expires | October 9, 2026 |
| BBL | — |
| BIN | — |
Property Owner
HABITAT ON DEGRAW LLC
Eli Scharf