Mechanical Systems for Addition at 142 St James Place, Brooklyn
142 ST JAMES PLACE, Brooklyn, 11238 · Clinton Hill
What was permitted
Curious about the cost of mechanical system upgrades for home additions? This permit details work for interior renovations and a new 1-story horizontal addition in Clinton Hill.
The permit for this project was issued on June 29, 2026, with an estimated cost of $68,000. HNL CONSTRUCTION COMPANY is the general contractor.
A $68,000 mechanical systems project for a home addition in Clinton Hill provides a cost benchmark for similar expansions.
What it cost
Issued
June 29, 2026
Expires
October 21, 2026
License
General Contractor
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Filed by HNL CONSTRUCTION COMPANY · 14 permits across 8 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 | 185319817 |
| Work Permit # | B01223209-I1-MS |
| Job Filing Number | — |
| Work Type | Mechanical Systems |
| Status | Permit Issued |
| Job Description | MECHANICAL FOR INTERIOR WORK INCLUDING 1-STORY HORIZONTAL ADDITION |
| Floor / Unit | Roof |
| Estimated Cost | $68,000 |
| Approved | December 11, 2025 |
| Issued | June 29, 2026 |
| Expires | October 21, 2026 |
| BBL | — |
| BIN | — |
Property Owner
Not Applicable
Benjamin Schellpfeffer