Neighborhoods › Carroll Gardens-Cobble Hill-Gowanus-Red Hook › Building 3006970
Enlargement, est. $813K
457 Sackett Street, Brooklyn 11232 · Approved
| Job | B01172122 (4 filings: P1, P4, P3, P2) · Alteration CO |
|---|---|
| Category | vertical enlargement |
| Estimated cost | $812,874 |
| Scale | 3 → 3 stories; 2 → 2 dwelling units; 3,506 sq ft |
| Work types | General Construction |
| Filed | Apr 8, 2026 |
| Professional | Montesbuild Inc |
| Building | BIN 3006970 · BBL 3004230051 |
| Official record | DOB NOW job B01172122 |
DOB description
B01172122-P1: RENOVATE AND ENLARGE EXISTING 2-FAMILY RESIDENCE. CONSTRUCT NEW REAR HORIZONTAL ADDITION AT CELLAR, BASEMENT & 1ST FLOOR. OBTAIN NEW CO FOR 2-FAMILY.
B01172122-P4: STRUCTURAL WORK FILED IN CONJUNCTION WITH RENOVATION & HORIZONTAL ENLARGEMENT OF EX. 2-FAMILY RESIDENCE. INSTALL FRAMING FOR NEW REAR ADDITION PER PLANS. ENLARGE OPENING IN REAR FACADE & INSTALL NEW REAR DECK.INSTALL NEW JOISTS AND SISTER JOISTS PER PLANS
B01172122-P3: FOUNDATION FOR NEW REAR ADDITION FILED IN CONJUNCTION WITH RENOVATION AND ENLARGEMENT OF EX. 2-FAMILY RESIDENCE. INSTALL NEW POURED CONCRETE FOUNDATION AND FOOTINGS PER PLANS.
B01172122-P2: SOE WORK FILED IN CONJUNCTION WITH RENOVATION AND REAR ADDITION FOR EXISTING 2-FAMILY RESIDENCE. GC, FOUNDATION, STRUCTURAL AND UNDERPINNING FILED UNDER RELATED SUBSEQUENT APPLICATIONS.
Status timeline
- Apr 8, 2026 — New job filed (Approved) B01172122-P1
- Apr 13, 2026 — New job filed (Approved) B01172122-P2
- Apr 14, 2026 — New job filed (Approved) B01172122-P3
- Apr 14, 2026 — New job filed (Approved) B01172122-P4
- Apr 22, 2026 — Plans approved (Approved) B01172122-P4
- Apr 24, 2026 — Plans approved (Approved) B01172122-P2
- Apr 28, 2026 — Plans approved (Approved) B01172122-P3
- May 13, 2026 — Plans approved (Approved) B01172122-P1
Work permits
| Permit | Work | Status | Issued | Expires |
|---|---|---|---|---|
| B01172122-S2-PL | Plumbing | Permit Issued | Oct 13, 2026 | Nov 18, 2026 |
| B01172122-I1-GC | General Construction | Permit Issued | May 14, 2026 | Jan 27, 2027 |
| B01172122-S3-ST | Structural | Permit Issued | May 10, 2026 | Jan 27, 2027 |
| B01172122-S4-FO | Foundation | Permit Issued | May 10, 2026 | Jan 27, 2027 |
| B01172122-S1-MS | Mechanical Systems | Permit Issued | May 7, 2026 | Jan 27, 2027 |
| B01172122-S7-FO | Foundation | Permit Issued | May 7, 2026 | Jan 27, 2027 |
| B01172122-S5-EW-SP | Sprinklers | Permit Issued | Nov 12, 2025 | Jun 18, 2026 |
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