AC in the Uptown, Carrollton, Mid-City, and Parkview historic districts
Uptown, Carrollton, Mid-City, and Parkview are local historic districts where the HDLC’s jurisdiction “is limited to the control of demolition,” in the words of their district sheets (Historic Districts, pages 02-23, 02-25, 02-33; Carrollton on 02-7). Putting a condenser in the side yard or a mini-split on the back wall isn’t demolition, so it doesn’t need a Certificate of Appropriateness. Two exceptions need the HDLC:
- Carrollton Avenue. “The section of the District along the full length of Carrollton Avenue is subject to the full control of the HDLC” (page 02-7). The flanking blocks are demolition only.
- Individual landmarks. The HDLC “reviews all proposed exterior work to Landmark properties,” wherever they are (Introduction, page 01-3). The City’s parcel records show 86 individual landmarks inside these four districts.
These districts are large. Together they hold 25,725 parcels; Uptown alone has 11,843. Being “in a historic district” here usually changes nothing about an AC job.
Checked October 20, 2026, against the HDLC Design Guidelines. All four districts are dated 2017 on their district sheets.
What applies instead
The city mechanical permit, and the zoning rules for equipment (CZO 21.6.T):
- No ground units in a front or corner side yard.
- Interior side or rear yard, at least two feet from the lot line, with that two feet open to the sky.
- Screening when a ground unit is readily visible from the street. An existing fence or hedge that hides it counts.
- Above base flood elevation when that applies.
The district sheets describe dense blocks of shotguns and camelbacks. Mid-City’s houses are built close to the lot lines, and Parkview and Mid-City both have many raised-basement houses. On a narrow lot, the two-foot side clearance plus the unit’s own service space is usually what decides the spot, not historic review. The condenser placement guide walks through it.
On Carrollton Avenue: full control
Properties along Carrollton Avenue follow the full-control rules (Site Elements, pages 10-8 to 10-9):
- Ground units go in the rear yard, or a side yard if the rear isn’t possible, and are screened if visible.
- Mini-split condensers on walls, porches, and galleries must be “visually unobtrusive, and rationally organized.” Staff can approve an unobtrusive wall unit at least 10 feet back from the street-facing wall.
- Exposed conduit and piping “should be minimized,” and abandoned equipment comes off.
- Rooftop units aren’t allowed where they’re visually obtrusive.
HVAC work that meets the guidelines qualifies for the HDLC’s Express Lane, with approvals in 1 to 3 business days on a complete application. The avenue strip is small, 227 parcels, and many of its buildings aren’t houses.
What the permit records show
| Area | What the commission reviews | Parcels | HVAC permits | Mini-split share | Median days to issue |
|---|---|---|---|---|---|
| Uptown | Partial: demolition only | 11,843 | 1,756 | 5.9% | 3 days |
| Carrollton, off the avenue | Partial: demolition only | 7,253 | 926 | 5.4% | 5 days |
| Carrollton Avenue | Full control | 227 | 14 | Too few | Too few |
| Mid-City | Partial: demolition only | 5,148 | 556 | 1.8% | 4 days |
| Parkview | Partial: demolition only | 1,481 | 204 | 3.4% | 5 days |
| Uptown, Carrollton, Mid-City and Parkview (demolition only) | 25,725 | 3,442 | 5.0% | 4 days | |
| All HDLC full-control areas | 12,075 | 1,523 | 8.5% | 7 days | |
| Outside every local historic district | 9,961 | 2.3% | 3 days |
The waits show the difference between demolition-only and full control. The median house HVAC permit applied for since 2024 was issued in 4 days across these four districts, close to the 3 days outside every district. Full-control areas took 7 days.
Mini-splits vary a lot within this group: 5.9% of house HVAC permits in Uptown and 5.4% in Carrollton since 2018, but 3.4% in Parkview and 1.8% in Mid-City. Mid-City’s is the lowest share of any district area with enough permits to compare. The rules are the same across all four, so the gap isn’t the HDLC’s doing.
The St. Charles Avenue and Garden District pages cover the blocks between these districts and the river: St. Charles Avenue is full control, and the Garden District reviews new construction.
Sources
- City of New Orleans HDLC — Historic Districts, Carrollton, Mid-City, Parkview and Uptown district sheets (January 2019), pages 02-7, 02-23, 02-25, 02-33
- City of New Orleans HDLC — Design Guidelines, Introduction (January 2019), pages 01-3 to 01-5
- City of New Orleans HDLC — Guidelines for Site Elements, Equipment and Systems (January 2019), pages 10-8 to 10-9
- City of New Orleans Comprehensive Zoning Ordinance — Article 21, Sec. 21.6.T Mechanical Equipment
- See Dat — City of New Orleans permit records and parcel layer, compiled by parcel