How long does an AC permit take in New Orleans?

Yes, you need a permit to replace an AC in New Orleans, and your contractor has to be the one to get it. For most houses it comes quickly. On the 2,092 permits for houses outside a local historic district applied for October 2024 through September 2026, the median wait from application to issue was 3 days. Full-control historic districts took longer, with a median of 7 days. The French Quarter is the outlier, at a median of 46 days. These are counts from the City’s own permit records, not estimates.

Permit rules checked October 20, 2026, against nola.gov/mechanical-permit. Wait times come from City permit records through October 17, 2026.

Do you need a permit to replace your AC?

Yes. The City’s Department of Safety and Permits requires a mechanical permit if you plan to “install, repair, replace, or alter” any mechanical equipment, and its mechanical permit page names air conditioning systems first. A swap of the outdoor unit, the indoor unit, or the whole system all count.

A homeowner can’t pull this permit. The City issues HVAC permits only to a contractor holding a City of New Orleans Class A mechanical license for air conditioning. If a quote doesn’t mention the permit, ask who is filing it. What a good replacement quote includes covers the rest of the paperwork.

Two more rules from the same page are worth knowing. A permit lapses after six months with no activity, and the contractor then has to apply again. Some jobs also need a building permit on top of the mechanical one.

How long the wait is, by where the house is

Where the house is	Permits	Median wait	Middle half	Issued within a day
Not in a local historic district	2,092	3 days	1–8 days	36%
Partial-control HDLC district	931	4 days	1–9 days	33%
Full-control HDLC district	312	7 days	3–15 days	16%
French Quarter (Vieux Carré Commission) (applied October 2022 through September 2026)	39	46 days	13–104 days	5%
All one- and two-family houses	3,352	4 days	1–9 days	33%

Days from application to issue, by the house's historic-district control. Applied for October 2024 through September 2026 unless the row says otherwise. One- and two-family house HVAC permits, City of New Orleans.

The wait tracks how much historic review a house gets:

No local historic district. The permit goes through the Department of Safety and Permits alone. 36% were issued the same day or the next.
Partial-control districts such as Uptown, Carrollton, and Mid-City. In these districts the Historic District Landmarks Commission (HDLC) reviews demolition only (City of New Orleans, September 2026), so an AC job gets no extra review. The wait, a median of 4 days, is close to houses outside any district.
Full-control districts such as Bywater, the Marigny, Irish Channel, and Algiers Point. Here the HDLC reviews exterior changes, including AC condensers that can be seen from the street (HDLC Guidelines for Site Elements). Only 16% were issued within a day, and the median was 7 days.
The French Quarter. The Vieux Carré Commission must approve any exterior work first, and the City says it “will not issue a permit for work” until then (Vieux Carré Commission). The Quarter has so few house HVAC permits that its row covers October 2022 through September 2026, a longer period than the others, and still rests on only 39 permits. The middle half took 13–104 days, so the wait varies widely.

The permit records don’t say why any single permit waited, so this is a pattern, not proof. It matches the review rules, though. Where the outdoor unit can go in each kind of district is covered in where an AC condenser can go on a New Orleans lot. What each district’s commission reviews, district by district, is in the historic districts guide.

Where the time goes

For permits applied for since 2018, the City’s records also date each step: when the application was submitted, approved, and issued, and when the first inspection happened.

Stage	Permits	Median	Middle half
Application submitted → permit approved	3,499	1 day	0–4 days
Permit approved → permit issued	3,351	1 day	0–4 days
Permit issued → first inspection (applied October 2023 through September 2025)	2,097	15 days	3–62 days

Days between the city's status milestones, permits applied for October 2024 through September 2026 unless the row says otherwise. One- and two-family house HVAC permits, City of New Orleans.

Approval took a median of 1 day, and issue a median of 1 day after that. The first inspection came a median of 15 days after the permit was issued, and the middle half of jobs waited 3–62 days.

Waits have come back down

Year	Permits issued	Median wait	Middle half	Issued within a day
2016	2,072	0 days	0–2 days	73%
2017	2,143	1 day	0–5 days	59%
2018	2,058	1 day	0–3 days	64%
2019	1,703	1 day	0–6 days	54%
2020	1,664	2 days	0–7 days	45%
2021	1,490	4 days	1–8 days	31%
2022	1,565	7 days	2–15 days	17%
2023	1,564	4 days	1–10 days	34%
2024	1,252	4 days	1–11 days	32%
2025	1,562	3 days	1–9 days	36%
2026 (through September)	1,463	4 days	1–9 days	31%

Days from application to issue, by year applied for. One- and two-family house HVAC permits, City of New Orleans.

In 2016, 73% of permits were issued within a day. By 2022 the median wait had climbed to 7 days, and in 2025 it was back to 3 days. The records show the change but not its cause.

Some permits are never finished

A permit on file doesn’t mean the job was inspected. Of house HVAC permit applications filed October 2023 through September 2025, at least a year before this data ends, 7% were never issued. Of those that were issued, 17% have no first inspection on the City’s record.

Where the house is	Applications	Never issued	Issued	Issued, no first inspection on record
Not in a local historic district	1,841	6%	1,722	19%
Partial-control HDLC district	750	6%	702	15%
Full-control HDLC district	302	12%	267	13%
French Quarter (Vieux Carré Commission)	31	32%	21	Fewer than 30 issued
All one- and two-family houses	2,924	7%	2,712	17%

What happened to permit applications filed October 2023 through September 2025, at least a year before this data ends. One- and two-family house HVAC permits, City of New Orleans.

A missing inspection can mean the job was never inspected, or that the inspection didn’t make it into the record. Either way, you can check your own. Ask your contractor for the permit number, then look it up on the City’s One Stop permit search. If you’re buying a house, asking the seller for HVAC service records should include that permit history. The HVAC permit explorer shows how many permits are filed in each neighborhood.

How these numbers were made

Which permits. Mechanical HVAC permits on houses the City records as single-family, two-family, or half of a double. The figures come from the City’s open permit data as compiled by See Dat. Only the month, the historic-control class, and the day counts are kept; no addresses or permit numbers.
The wait is the number of days from the application date to the issue date. Applications that were never issued are left out of the wait and counted in the follow-through table instead.
Historic control is the house’s HDLC control in the City’s parcel data today. A district’s boundaries or control level may have been different when an older permit was filed.
Time period. Each row covers the last 24 full months unless it says otherwise. A group needs at least 30 permits to be shown. If it has fewer, the period is stretched back one year at a time, up to four extra years, and the row says so. The follow-through table and the inspection row use applications at least a year old, so every permit has had time to be issued and inspected.
Status milestones start in 2018. A wait or gap that runs backward, such as an issue date before the application date, is a record error and is left out.