Collier County energy calcs & Manual J.
Single-file PDFs, digital seals, and model homes in every orientation.
Collier County asks for AC energy and load calculations specific to the scope whenever a permit includes air-conditioned space, uploaded through the GMD Public Portal. Each document must be one PDF, digitally signed once where a seal is required. Master permits need the calcs run for every orientation. Collier is climate zone 1A, with a 90°F cooling limit.
- Department
- Collier County Growth Management, Building Plan Review & Inspectionunincorporated · GMD Public Portal (electronic submittal required for contractors and design professionals)1
- Code edition
- FBC Energy Conservation, 8th Ed. (2023)9th Ed. (2026) scheduled for Dec 31, 2026 · what changes2
- Climate zone
- Zone 1A1% cooling 90°F · 99% heating 47°F3
- Price
- $195 · $445 · $595Energy calc from · full package · sealed. Same in all 67 counties · price list
- Ready by
- 2–3 business daysExpedited: within 24 business hours, +$150. Clock starts when complete plans pass intake (3:00 PM ET cutoff) · how it works
- Evidence
- 11 primary sourcesEvery number on this page links to its source · references
What Collier reviewers ask for
Collier's checklist for a new one- or two-family home is short on this point: if the work includes any air-conditioned space, submit energy and load calculations specific to the scope of work.4 That wording rules out reusing a calc from a similar house down the street.
The rest of the Collier submittal notes2 more paragraphs
Production builders get a stricter line. On a master building permit, Collier wants the energy and load calculations for all building orientations and the worst-case scenario, and it doesn't accept revisions to a master.5 A model that can be flipped garage-left or garage-right has to show both.5
File handling trips people up. Every required document must be uploaded as a single file, signed digitally once for the whole document; a 15-page plan uploaded as 15 PDFs is rejected.1 Sealed documents need a digital certificate the county can validate.1 We deliver each calc as one combined PDF for that reason.
Building departments
3 departments · addresses, phones, portals
The City of Naples and the City of Marco Island run their own building departments, each with its own portal and forms.67 Naples requires every building application to come in electronically through its Public Portal and, inside the Special Flood Hazard Area, an elevation certificate or the city's FEMA form with the application.9 For Everglades City, confirm with the city who reviews residential permits before you submit.
| Department | Address | Phone | Portal |
|---|---|---|---|
| Collier County Growth Management, Building Plan Review & Inspection (unincorporated) | See official page | Official page | GMD Public Portal (electronic submittal required for contractors and design professionals)1 |
| City of Naples, Building Department | 295 Riverside Cir., Naples, FL 34102 | 239-213-5020 | City of Naples Public Portal6 |
| City of Marco Island, Building Services | See official page | Official page | City permit applications online7 |
Design conditions
90°F cooling · 47°F heating · zone 1A · weather stations
Cooling station: Naples Municipal (ASHRAE). Heating station: Naples Municipal (ASHRAE).3
Naples Municipal sets Collier's design limits: 90°F for 1% cooling and 47°F for 99% heating.3 That cooling figure is three degrees under Lee's, which matters at the margin when an equipment line jumps in half-ton steps. Collier is zone 1A under the 8th Edition table.2 Our take: with a mild cooling design temperature and a humid Gulf, latent capacity deserves as much attention as the sensible number.
Worked example
2,900 sq ft house → 35,560 Btu/h, 2.96 tons · illustrative
Illustrative · not a Manual J
A 2,900 sq ft four-bedroom with ten-foot ceilings and a generous glass ratio, because that's the custom-home end of Collier's newer stock. Glass and ceiling height push this one past the Lee example even though Naples' design temperature is lower.
| House | new single-storey custom home, Naples area |
|---|---|
| Conditioned area | 2,900 sq ft, 1 storey, 10 ft ceilings |
| Bedrooms / occupants | 4 / 5 |
| Glazing | 17% of floor area (493 sq ft), U 0.3, SHGC 0.22 |
| Walls / ceiling | R-7.8 walls, R-38 ceiling under a vented attic |
| Air leakage | 4 ACH50 |
| Ducts | in the attic, 8% gain allowance |
| Ventilation | mechanical, per FBC formula |
| Outdoor design | 90°F cooling / 47°F heating (sourced above) |
| Indoor design | 75°F cooling / 70°F heating |
| Design grains difference | 48 gr/lb (assumption) |
Illustrative only. A simplified block-load estimate with the inputs shown, not an ACCA Manual J, and not for permitting. A real calc goes room by room with your plans, orientation and equipment data. Code ceiling for single-stage cooling at 1.15× total load: 40,900 Btu/h.10
Local housing
Median year built 1998 · 43.0% single-family detached · Census ACS
Collier's median home dates to 1998, and 45.9% of units were built in 2000 or later.11 Only 43.0% of units are single-family detached, which leaves a large share in condos and attached product; owner occupancy runs high at 78.3%.11 For our work that means a steady flow of newer custom homes alongside a lot of multifamily that a single-family calc doesn't cover.
Utility rebates
FPL · LCEC
- FPL. FPL offers a $200 instant credit on a qualifying central A/C or heat pump at SEER2 15.2 or above, with both units replaced by a participating contractor; mini-splits are excluded.8
- LCEC. Parts of Collier are LCEC territory. We haven't confirmed an LCEC residential A/C rebate, so check with LCEC directly.
Utility programs change often; check the program page before you count on a rebate.
Collier County questions
3 answers · Can I upload my Collier County energy calc page by page?
Can I upload my Collier County energy calc page by page?
No. Collier's e-permitting rules say each required document must be one file, digitally signed once for the complete document. Its own example: a 15-page plan uploaded as 15 separate PDFs is rejected. Combine the energy calc, Manual J and any supporting pages into one PDF per document type.
What does Collier mean by load calcs 'specific to the scope of work'?
The one- and two-family checklist asks for energy and load calculations specific to the scope whenever the work includes air-conditioned space. In practice the calc should match this house, this orientation and these windows. For master permits, Collier also wants every orientation and the worst case run.
Does the City of Naples accept Collier County permits?
No, the City of Naples has its own Building Department at 295 Riverside Circle, and every building application there goes in through the city's Public Portal. If the parcel sits in the Special Flood Hazard Area, Naples also wants an elevation certificate or its FEMA form with the application.
Price
One statewide price in all 67 counties. Building departments decide what they accept; we don’t guarantee approval. Revisions for plan-review comments on the same design are free.
Nearby and related
Sources
11 primary references · numbered to match the citations
- 01Collier County, Help with E-Permittingcollier.gov
- 022023 Florida Building Code, Energy Conservation (8th Ed.), Table R301.1, climate zones by countyup.codes
- 03RESNET / ENERGY STAR, Appendix A: HVAC Design Temperature Limits by State and County (v4, 2019). 1% cooling and 99% heating values drawn from the ASHRAE 2013 Handbook of Fundamentals and ACCA Manual J 8th Ed.resnet.us
- 04Collier County, 1 & 2 Family Home - New (PRFH)collier.gov
- 05Collier County, Master Building (PRMB)collier.gov
- 06City of Naples, Buildingnaplesgov.com
- 07City of Marco Island, Building Servicescityofmarcoisland.com
- 08FPL, Ways to Save: A/C Rebatefpl.com
- 09City of Naples, Building Permit Forms & Feesnaplesgov.com
- 10Florida Building Commission, R405-2026 documentation checklist example (quotes R403.7.1.1 cooling equipment sizing limits)floridabuilding.org
- 11U.S. Census Bureau, American Community Survey 2024 1-year estimates (B25018, B25024, B25034, B25035, B25003, B25040), via Census Reportercensusreporter.org