Mechanical Systems Work at 650 Grand Concourse, Bronx
650 GRAND CONCOURSE, BRONX, 10451 · Concourse-Concourse Village
What was permitted
This permit is for mechanical systems work on the 3rd and 4th floors of an existing school building at 650 Grand Concourse in the Bronx. This type of work often involves HVAC and other building infrastructure.
The project, for Rosalyn Yallow Charter School, was issued on June 12, 2026, with a significant estimated cost of $1,308,000. KEL-MAR INTERIORS INC (GC) is the contractor.
Major mechanical system upgrades for institutional buildings like schools in the Bronx can be extensive, with this project costing over $1.3 million.
What it cost
Issued
June 12, 2026
Expires
December 31, 2026
License
General Contractor
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Filed by KEL-MAR INTERIORS INC · 11 permits across 5 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 | 169628261 |
| Work Permit # | X00540880-I1-MS |
| Job Filing Number | — |
| Work Type | Mechanical Systems |
| Status | Permit Issued |
| Job Description | ALT- 2 APPLICATION FOR MECHANICAL WORK FOR ROSALYN YALOW CHARTER SCHOOL ON 3RD & 4THFLOORS IN AN EXISTING SCHOOL BUILDING. NO CHANGE OF USE OR EGRESS OR OCCUPANCY UNDERTHIS APPLICATION |
| Floor / Unit | Floor Number(s) 3 through 4 |
| Estimated Cost | $1,308,000 |
| Approved | July 23, 2021 |
| Issued | June 12, 2026 |
| Expires | December 31, 2026 |
| BBL | — |
| BIN | — |
Property Owner
CARDINAL HAYES HIGH SCHOOL
CARDINAL HAYES SCHOOL