Neighborhoods › Prospect Heights › Building 3028550
New 5-story building, 21 units, est. $10M
105 Underhill Avenue, Brooklyn 10018 · Approved
| Job | B01117069 (7 filings: P1, P2, P3, P4, P5, P6, S8) · ALT-CO - New Building with Existing Elements to Remain |
|---|---|
| Category | new building |
| Estimated cost | $10,337,000 |
| Scale | 2 → 5 stories; 0 → 21 dwelling units; 1 sq ft |
| Work types | General Construction |
| Filed | Nov 27, 2025 |
| Professional | Issac & Stern Architects, P.C |
| Building | BIN 3028550 · BBL 3011530005 |
| Official record | DOB NOW job B01117069 |
DOB description
B01117069-P1: Vertical and horizontal enlargement and renovation of existing building.
B01117069-P2: INSTALL SUPPORT OF EXCAVATION IN CONJUNCTION WITH ALT CO #B01117069-I1. NO CHANGE TO USE EGRESS OR OCCUPANCY.
B01117069-P3: Partial demolition work in coordination with proposed Alt Co as per plans filed.
B01117069-P4: Partial demolition work in coordination with proposed Alt Co as per plans filed.
B01117069-P5: INSTALL SUPPORT OF EXCAVATION IN CONJUNCTION WITH ALT CO #B01117069-I1. NO CHANGE TO USE EGRESS OR OCCUPANCY.
B01117069-P6: INSTALL SUPPORT OF EXCAVATION IN CONJUNCTION WITH ALT CO #B01117069-I1. NO CHANGE TO USE EGRESS OR OCCUPANCY.
B01117069-S8: Partial demolition work in coordination with proposed Alt Co as per plans filed.
Status timeline
- Oct 23, 2025 — New job filed (Permit Entire) B01117069-S8
- Nov 27, 2025 — New job filed (Approved) B01117069-P1
- Nov 28, 2025 — Plans approved (Approved) B01117069-P1
- Mar 10, 2026 — Permit issued — work can start (Structural) B01117069-S8
- Jun 21, 2026 — New job filed (Approved) B01117069-P3
- Jun 22, 2026 — New job filed (Approved) B01117069-P2
- Jun 25, 2026 — Plans approved (Approved) B01117069-P2
- Jul 2, 2026 — Plans approved (Approved) B01117069-P3
- Jul 19, 2026 — New job filed (Approved) B01117069-P4
- Jul 20, 2026 — New job filed (Approved) B01117069-P5
- Aug 11, 2026 — Plans approved (Approved) B01117069-P4
- Aug 11, 2026 — Plans approved (Approved) B01117069-P5
- Aug 27, 2026 — New job filed (Approved) B01117069-P6
- Sep 9, 2026 — Plans approved (Approved) B01117069-P6
- Sep 10, 2026 — Permit issued — work can start (Permit Entire) B01117069-S8
Work permits
| Permit | Work | Status | Issued | Expires |
|---|---|---|---|---|
| B01117069-S5-PL | Plumbing | Permit Issued | Jun 9, 2026 | Apr 1, 2027 |
| B01117069-S1-SE | Support of Excavation | Permit Issued | Mar 25, 2026 | Nov 8, 2026 |
| B01117069-S2-FO | Foundation | Permit Issued | Mar 25, 2026 | Nov 8, 2026 |
| B01117069-S3-ST | Structural | Permit Issued | Mar 25, 2026 | Nov 8, 2026 |
| B01117069-I1-GC | General Construction | Permit Issued | Mar 22, 2026 | Nov 8, 2026 |
| B01117069-S4-MS | Mechanical Systems | Permit Issued | Mar 10, 2026 | Nov 8, 2026 |
| B01117069-S8-GC-CX | Structural | Permit Issued | Mar 10, 2026 | Nov 8, 2026 |
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