Every figure on this site traces to a public record — Collier County building permits joined to Property Appraiser parcel data. This page explains exactly what is counted, what is left out, and what the numbers cannot tell you. Where the data is uncertain, we say so rather than filling the gap.
That sentence carries four deliberate limits, each covered below: single-family only, built before 2010, a permit was pulled (not that work finished), and a fixed January 2020 through June 2026 window.
Across 394 Collier subdivisions, 14,310 of 50,367 qualifying homes have a roof permit on record — 28.4%. The typical subdivision sits near that figure; the full range runs from under 2% to over 80%.
This is the single most important choice on the site, and without it the maps would be misleading.
Roofs in Collier County are replaced at a median age of 25 years. Our permit records begin in January 2020. A house built in 2015 is therefore between 5 and 11 years old across the entire window — it is not old enough to need a roof, and essentially none of them do.
Share of homes of each build year with a roof permit January 2020 through June 2026. Red bars are the years we count.
Four ZIP codes show how severe the distortion is. The raw rate counts every home; the age-normalized rate counts only pre-2010 homes.
| ZIP | Homes | Raw rate | Age-normalized | Built pre-2010 |
|---|---|---|---|---|
| 34142 | 7,728 | 7.6% | 21.3% | 33% |
| 34114 | 9,943 | 8.8% | 27.5% | 29% |
| 34120 | 19,401 | 12.7% | 25.2% | 47% |
| 34113 | 7,624 | 15.9% | 26.6% | 57% |
These are not quiet neighborhoods. They are new neighborhoods. Once the denominator is restricted to homes old enough to need a roof, they look like everywhere else.
The statistics confirm it. Across Collier ZIP codes, the raw rate correlates -0.75 with median year built — which looks like a tidy finding that older areas replace more roofs. But it correlates +0.93 with the share of housing built before 2010. It is a threshold effect, not a gradient. After normalizing, the apparent relationship with age falls to -0.23 and mostly disappears.
Of 98,185 unincorporated single-family parcels in the county, 63,891 were built before 2010 and are counted here. The remaining 34,294 are excluded from both sides of every rate on this site.
Permits join to parcels on the folio number. Folio is unique across all 298,247 parcels, so the join is one-to-one. Roughly 2,560 permit records arrive from the county with leading zeros stripped; these are re-padded to 11 digits before joining, which recovers about 1,550 matches that would otherwise fail silently.
Four filters, applied in order:
Municipal status is determined from the municipal millage rate on each parcel. We cross-checked this against the county's published city-limits geometry: of 394 mapped subdivisions, none fall inside a municipal boundary.
A home counts as replaced when a roof permit was issued for it during the window. This measures permits issued, not projects completed — a permit issued in June 2026 may describe a roof that is not finished.
Permits that were cancelled, denied, rejected, withdrawn as incomplete, or filed under an invalid licence are not counted, because that work was never authorised to proceed. There are 71 such permits. Including them would raise the county total from 14,310 to 14,362 — a difference of 52, or about 0.4%.
A home is counted once however many permits it pulled. Permit counts and home counts are labelled separately everywhere they both appear.
Owner-builder permits, filed by a homeowner rather than a licensed contractor, are counted as replacements — the roof was replaced either way. They are excluded from the cost and contractor figures, because an owner-builder permit typically declares materials only.
Declared value is what the applicant wrote on the permit application. It is not a receipt or a quote. It may exclude tear-off, permit fees, or work added after filing. It is the closest public-record proxy for what a job cost, and it should be read as a rough band rather than a price.
Declared values countywide do not form a single cluster. They pile up in a lower band near $15,000 and again in a higher band above $40,000, with relatively little in between — different roof sizes and materials, not one market. A countywide average sits in the sparse gap between the two clusters and moves sharply on small shifts in mix, so we do not compare neighborhoods to a countywide average. Each subdivision is ranked against the others instead, and reported as an upper, middle, or lower third.
Cost figures cover contractor-pulled permits declaring $1,000 or more. The countywide median on that basis is $24,000.
A subdivision needs at least 50 pre-2010 single-family homes to get a page. Below that, one permit swings the rate by more than four points and the ranking fills with noise.
Five further areas are withheld even though they clear that floor, because their figures would be misleading rather than merely uncertain:
| Area | Homes | Why it is withheld |
|---|---|---|
| Acreage / Unplatted | 1,522 | county residual category, not a subdivision (593 streets) |
| Naples Improvement Company's Little Farms Unit 2 | 64 | historic plat spanning multiple distinct communities |
| Crown Pointe Villas | 60 | no roof permit of any kind on record 2020-2026; homes built c.1997, most likely replaced before the window opens |
| Phase 2-A | 56 | unusable recorded name; roofs partly permitted per building |
| Stella Maris | 50 | roofs permitted per building against a master parcel (8 multi-family filings), so no per-home rate exists |
Where a neighborhood is built as attached villas, roofs are often permitted per building against a single association-owned parcel rather than against each home. That work was done, but no per-home rate can be computed from it, and publishing one would state something false. A different case is a neighborhood with no permit of any kind on record. That means only that no roof was replaced during this window — housing that reached replacement age before January 2020 was very often re-roofed before these records begin.
Records begin January 2020. Hurricane Wilma (2005) and Hurricane Irma (2017) both fall before that date, and a great many Collier roofs were replaced in those recoveries. A home with no permit in our window may have a nearly new roof we simply cannot see. “No roof permit on record” means exactly that, and nothing more.
A new home's roof is permitted under the builder's master construction permit, not as a separate roof permit. Only 39 of the roof permits in our window sit on a home in its first year. Roofing work on new construction — roughly a third of all residential roofing activity in the county — is invisible here, and the contractor rankings therefore measure roof replacement, not roofing overall.
Multi-family roof permits are filed against master or common-element parcels that do not appear on the tax roll as individual homes, so there is no per-home denominator to compute a rate against. This site covers single-family housing only.
The file the county published for April 2024 contains March records; April was never released under its own name. May 2026 appears partial, at 101 permits against neighbouring months in the high 200s and 300s. We have not estimated or filled either gap — missing data is left missing and named here.
Contractor names in permit records are inconsistent — punctuation and casing vary, and the same business appears with and without “LLC”. Some businesses also file under more than one licence number over time. We match on licence number first and on a normalised business name second, and combine permits filed by the same business under different licences. Where a second licence exists it is marked.
Ranking on a subdivision page counts roof permits pulled in that subdivision across the full January 2020 through June 2026 window. The county-wide directory ranking uses a shorter, more recent window, so a contractor's position can differ between the two pages. Both windows are stated where they appear.
No contractor can pay to appear, to rank higher, or to have anything removed. Rankings are computed from public permit records alone. If that ever changes, it will be disclosed on this page before it takes effect.
Questions about a figure, or think something is wrong? Email roofing@collierroofingdirectory.com. Corrections that hold up against the record get made.