What re-roofs in Detroit, MI declared on their permits

Short answer: In 2025 Detroit issued 183 re-roof permits with a median declared cost of $12,000, inside our $7,000 to $15,500 guide range (+7% against its midpoint). Declared cost is not the contract price.

3,165 permits in all, from building_permits. Scope: single- and two-family use.

Source: services2.arcgis.com. Retrieved October 9, 2026.

Detroit, 2025: re-roof permits declared a median of $12,000; the middle half declared $8,216 to $16,684. Our guide range is $7,000 to $15,500.Our guide range $7,000 to $15,500median $12,000$8,216$16,684$0$5k$10k$15k$20k
  • Middle half of permits
  • Median
  • Our guide range, 2,000 sq ft asphalt

Declared cost on the permit application is not the contract price. It is what the applicant wrote on the form. It can sit below the signed contract, and permits do not say how big the roof was. Read it as the spread of real jobs, not as a quote.

Year by year, 2019 to 2026

Each bar runs from the 25th to the 75th percentile of declared cost. The dark tick is the median. The grey band is our guide range, the national base, because we have no city index for Detroit.

Declared value of re-roof permits in Detroit by year: middle half of permits and the median, against our guide range $7,000 to $15,500Our guide range$0$5k$10k$15k$20k20192019: middle half $6,000 to $11,141, median $8,233, 644 permitsn 64420202020: middle half $5,700 to $11,500, median $7,800, 429 permitsn 42920212021: middle half $6,000 to $12,000, median $8,524, 801 permitsn 80120222022: middle half $7,000 to $14,451, median $10,144, 562 permitsn 56220232023: middle half $7,644 to $15,000, median $9,937, 221 permitsn 22120242024: middle half $7,384 to $15,256, median $10,744, 198 permitsn 19820252025: middle half $8,216 to $16,684, median $12,000, 183 permitsn 18320262026 so far: middle half $5,611 to $16,154, median $10,000, 127 permitsn 127*

The biggest rise in permit counts came from 2020 to 2021: 429 to 801, +87%. The biggest fall came from 2022 to 2023: 562 to 221, -61%. The median declared cost went from $8,233 in 2019 to $12,000 in 2025, +46% over 6 years.

* 2026 is not finished: the portal data runs to 2026-10-08.

Declared cost of re-roof permits
YearPermits25th pctMedian75th pctMedian vs guide
2026*127$5,611$10,000$16,154-11%
2025183$8,216$12,000$16,684+7%
2024198$7,384$10,744$15,256-4%
2023221$7,644$9,937$15,000-12%
2022562$7,000$10,144$14,451-10%
2021801$6,000$8,524$12,000-24%
2020429$5,700$7,800$11,500-31%
2019644$6,000$8,233$11,141-27%

The gap to our price guide

The 2025 median of $12,000 falls inside our guide range of $7,000 to $15,500. Ours is a modelled price for a 2,000 sq ft asphalt roof; the permit figure is what applicants declared on real jobs, where roof size, material and bundled work are not recorded.

Permit median, 2025$12,000Middle half $8,216 to $16,684
Our guide range$7,000 to $15,5002,000 sq ft asphalt, national base (no city index)
GapInside+7% against the midpoint of $11,250

The last column of the year table compares each year’s median with today’s midpoint; the guide is not adjusted back in time.

When Detroit pulls re-roof permits

Of 602 permits issued in 2023, 2024 and 2025, 81 (13 percent) came in November, the busiest month. The quietest, March, had 27, 3.0 times fewer. September to November together hold 35 percent.

Detroit: re-roof permits by issue month, pooled. Busiest November, quietest March.020406080100January: 34 permits, 5.6% of the pooled totalJFebruary: 38 permits, 6.3% of the pooled totalFMarch: 27 permits, 4.5% of the pooled totalMApril: 36 permits, 6.0% of the pooled totalAMay: 59 permits, 9.8% of the pooled totalMJune: 40 permits, 6.6% of the pooled totalJJuly: 38 permits, 6.3% of the pooled totalJAugust: 66 permits, 11.0% of the pooled totalASeptember: 59 permits, 9.8% of the pooled totalSOctober: 73 permits, 12.1% of the pooled totalONovember: 81 permits, 13.5% of the pooled totalN81December: 51 permits, 8.5% of the pooled totalD
Permits by issue month, 2023, 2024 and 2025 pooled
MonthPermitsShare
January345.6%
February386.3%
March274.5%
April366.0%
May599.8%
June406.6%
July386.3%
August6611.0%
September599.8%
October7312.1%
November8113.5%
December518.5%

Where in Detroit the re-roofs are

48221 leads with 61 permits in 2023 to 2025, 13 percent of the 476 across 12 areas; the top three hold 35 percent. Highest median: 48213, $13,975 on 30 permits. Lowest: 48204, $9,077 on 21, a 1.5-fold spread.

Top 10 areas by permits, 2023 to 2025
Zip codePermitsShareMedianAgainst guide midpoint
48221 6112.8%$10,438-7%
48224 5411.3%$12,587+12%
48227 5311.1%$11,448+2%
48235 5311.1%$10,745-4%
48219 469.7%$10,065-11%
48228 428.8%$9,209-18%
48223 316.5%$11,067-2%
48205 306.3%$10,967-3%
48213 306.3%$13,975+24%
48234 306.3%$9,420-16%

Area = ZIP code as the portal records it; 100 percent of permits carry one. Areas under 10 permits are left out. No addresses are stored.

What the permit file says

  • The top quarter of permits declared $16,684 or more, 2.0 times the figure for the bottom quarter ($8,216 or less).
  • Across all published years the file holds 3,165 permits for Detroit.
  • The busiest published year was 2021 with 801 permits.
  • 2026 so far: 127 permits, median $10,000 (data through October 8, 2026).

How Detroit’s numbers were counted

11,350 rows matched a roof word and 3,165 remained (28 percent). The filters and their limits are on the permit data overview. A year appears only with at least 30 permits.

Data: building_permits (services2.arcgis.com). No license stated on the portal.

Questions

What did re-roof permits in Detroit declare in 2025?

183 permits passed our filters. The median declared value was $12,000, and half of the permits declared $8,216 to $16,684.

Is the permit value what the roofer charged?

Not necessarily. The value is the cost the applicant declared on the permit application. It can differ from the signed contract, and it is not an invoice. Use it to see the spread of real jobs, and get written quotes for your own roof.

How does this compare with your cost guide for Detroit?

The 2025 median of $12,000 falls inside our guide range of $7,000 to $15,500. Ours is a modelled price for a 2,000 sq ft asphalt roof; the permit figure is what applicants declared on real jobs, where roof size, material and bundled work are not recorded.

Where does the data come from?

From the city's open-data portal, building_permits (services2.arcgis.com, dataset bseed_building_permits), retrieved October 9, 2026. We keep permits with a re-roof description, drop repairs, solar, additions and new builds, keep declared values between $1,000 and $150,000, and count each permit number once.

Why are some years missing?

We publish a year only when it has at least 30 permits after filtering, and the current year is marked as partial until the portal has data past mid-December.

Planning a re-roof in Detroit? Describe the job once and we send it to one local roofer, not five.

Start an inspection request

Other cities

Information, not a quote or professional advice. Permit data belongs to each city and is shown as published.