Chuluota and Black Hammock carry an Oviedo mailing address in ZIP 32765 and 32766 but sit in unincorporated Seminole County, so an AC changeout there is permitted by the Seminole County Building Division in Sanford, not the City of Oviedo. Seminole County lists HVAC unit replacements among work requiring a permit and runs mandatory electronic plan review.
1101 E. First Street, Sanford, FL 32771-1468
407-665-7050
Mon–Fri 8 a.m.–5 p.m., last customer sign-in 4:30 p.m.
Applications through the County’s own Click2Gov portal, with mandatory electronic plan review via ePlan. HVAC unit replacements are on the County’s list of work requiring a permit in unincorporated areas.
City of Oviedo Building Services, 320 Alexandria Boulevard. The City runs its own Building Division and its own portal; it has no jurisdiction over a Chuluota or Black Hammock parcel, and the City’s $50 + $6 per $1,000 fee schedule does not apply.
Sources: Seminole County Building Division — the permit desk for unincorporated 32765 and 32766; Seminole County Click2Gov building permit portal; City of Oviedo Building Services — mechanical fee schedule and inspection scheduling.
Why it is worth a page: two houses two miles apart, both addressed “Oviedo, FL 32765”, can sit under two building departments with different portals, fee schedules and inspectors. A contractor who files with the wrong one stalls the job — and, on the Duke side, the rebate, because Duke requires the system to be approved by a licensed city or county inspector.
The utility line runs through here too. The City’s FAQ puts Florida Power & Light east of the C.R. 419 Econlockhatchee bridge and Duke Energy west of it. Chuluota lies east of the river, which by that description makes it FPL territory — and none of the Duke Home Energy Improvement figures on this site apply there. We have not researched FPL’s residential HVAC rebate offerings. Black Hammock’s meter we will not guess at either; the City publishes no boundary map, so the name on the bill is the answer. Duke or FPL.
A residential air conditioning changeout always requires a building permit in Florida. There is no dollar-amount exemption. The new $7,500 permit exemption for single-family work, created by HB 803 (2026) and effective 1 July 2026, expressly does not apply to “any electrical, plumbing, structural, mechanical, or gas work” — s. 553.79(1)(g)2.b., Fla. Stat. — and a changeout is both mechanical and electrical work.
If a quote is cheap because nobody is pulling a permit, that is not a saving the law allows. Bill: CS/CS/HB 803 (2026), ch. 2026-63.
What does not change out here: the Florida licence. Air-conditioning contracting is licensed at state level under Chapter 489, and a certified contractor may work in the county exactly as in the city. What does change is the flood-hazard question — the HB 803 exemption never applied to mechanical work anyway, but its separate flood-zone carve-out is a reminder that parcels along the Econlockhatchee and Lake Jesup basins sit in mapped flood areas, and a condenser pad height there is an inspector’s question, not a preference.
Seminole County is not in the High-Velocity Hurricane Zone; that is Broward and Miami-Dade only. The exposure in Chuluota and Black Hammock is wind, extended outages and river flooding — tie-downs, surge protection and a post-storm check, not HVHZ product approvals.
Send it. We will confirm the desk, the portal and the utility before anyone quotes you a rebate that belongs to the other side of the river.
