What was permitted
A new ductless mini-split HVAC system is being installed in a detached accessory structure at 203 SHEFFIELD DR in Austin. This project focuses solely on the mechanical installation, offering insights for homeowners considering similar upgrades to secondary buildings.
The permit for this Mechanical Permit · Repair was issued on September 29, 2026, with UNBELIEVABLE AIR as the mechanical contractor. The project cost is not specified in the permit details.
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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 | 2026-122876 MP |
|---|---|
| Work permit # | — |
| Job filing number | — |
| Work type | Mechanical Permit · Repair |
| Status | Active |
| Job description | Install new ductless mini-split HVAC system in existing detached accessory structure. New mechanical installation only. No demolition. Electrical work under separate electrical permit. |
| Floor / unit | — |
| Estimated cost | Not reported |
| Approved | September 18, 2026 |
| Issued | September 29, 2026 |
| Expires | March 28, 2027 |
| BBL | — |
| BIN | — |
Related searches
HVAC installationAustin78745mechanical permitmini-splitaccessory structure