What was permitted
This permit in the Bronx, New York City, authorizes interior alterations at 4055 Laconia Avenue to create a duplex between the basement and first floor. Homeowners considering significant interior renovations or creating new living spaces can find this cost data valuable.
The project, which aims to obtain a new Certificate of Occupancy and clear a violation, has a reported cost of $110,000 and was issued on June 30, 2026. MKSSKR CONSULTING SERVICE is the general contractor for this work.
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View the official permit record
Tracking number, work description, cost and dates
View the official permit record
Tracking number, work description, cost and dates
| Tracking number | 848566657 |
|---|---|
| Work permit # | X00825169-I1-GC |
| Job filing number | — |
| Work type | General Construction |
| Status | Permit Issued |
| Job description | Interior alterations to create a duplex between the basement and first floor for a new C of O. to clear violation 35484316H. |
| Floor / unit | Basement, Floor Number(s) 1 |
| Estimated cost | $110,000 |
| Approved | January 12, 2026 |
| Issued | June 30, 2026 |
| Expires | January 13, 2027 |
| BBL | — |
| BIN | — |
Property owner
Delon M Mathieson
Delon Mathieson
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