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Home addition permits in unincorporated Maricopa County, AZ

Data through September 2026 · updated 23 Oct 2026

780 home addition permits were issued in unincorporated Maricopa County, October 2024 through September 2026: about 390 a year and 4% of all permits. 435 home addition permits in the last 12 months (Oct 2025–Sep 2026), 26% more than the 345 in the 12 months before. The busiest month is December. The usual one took 109 days from issue to the county's final. 85375 has the most, 166.

780permits issued
435last 12 months
Decbusiest month
109days, usual issue to final
81%finished
Sep 2026records through

Home addition permits by month

Permits issued each month, October 2024 through September 2026.

Oct 2024: 30Oct2024Nov 2024: 23Dec 2024: 23Jan 2025: 30Jan2025Feb 2025: 22Mar 2025: 17Apr 2025: 42May 2025: 28Jun 2025: 26Jul 2025: 41JulAug 2025: 36Sep 2025: 27Oct 2025: 40Nov 2025: 21Dec 2025: 58Jan 2026: 24Jan2026Feb 2026: 24Mar 2026: 43Apr 2026: 32May 2026: 38Jun 2026: 42Jul 2026: 35JulAug 2026: 42Sep 2026: 36
The same numbers as a table
MonthPermits
Oct 202430
Nov 202423
Dec 202423
Jan 202530
Feb 202522
Mar 202517
Apr 202542
May 202528
Jun 202526
Jul 202541
Aug 202536
Sep 202527
Oct 202540
Nov 202521
Dec 202558
Jan 202624
Feb 202624
Mar 202643
Apr 202632
May 202638
Jun 202642
Jul 202635
Aug 202642
Sep 202636

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When home addition permits are filed

By calendar month, 100 = an average month (the thin line). December is the busiest (125), November the quietest (68). A busy month at the permit counter usually means a longer wait for a contractor.

January: 83 (100 = an average month)February: 71 (100 = an average month)March: 92 (100 = an average month)April: 114 (100 = an average month)May: 102 (100 = an average month)June: 105 (100 = an average month)July: 117 (100 = an average month)August: 120 (100 = an average month)September: 97 (100 = an average month)October: 108 (100 = an average month)November: 68 (100 = an average month)December: 125 (100 = an average month)125JFMAMJJASOND
The same numbers as a table
MonthIndex
January83
February71
March92
April114
May102
June105
July117
August120
September97
October108
November68
December125

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How long a home addition permit takes

Permits issued Oct 2024–Sep 2025, at least 12 months before the file ends. Usual days is the middle permit among the 280 with a final date.

MeasureValue
Permits issued Oct 2024–Sep 2025345
Finished81.2%
Expired12.5%
Usual days, issue to final109
Middle half, days40–196

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ZIP codes with the most home addition permits

Counted at the property's ZIP code. Share is the part of the county's 780 home addition permits.

ZIP codePermitsShare
8537516621%
853519312%
85248749%
85373486%
85340334%
85355334%
85086314%
85207304%
85206273%
85263223%

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Nearby permit data

Home addition permits for other places in Phoenix. Each permit office keeps its own file, so the numbers are not added together.

How these numbers are made

Source: Maricopa County Planning & Development building permits (ArcGIS: Building_Permits_(view) and BuildingPermitsAndAllCases), read 23 Oct 2026. We count permits issued October 2024 through September 2026; denied and withdrawn permits are left out.

Permits the county issues for unincorporated land only: Sun City, Sun City West, Anthem and New River, Rio Verde, Tonopah, Wittmann, county islands and similar places. Phoenix, Mesa, Scottsdale, Glendale and the other cities run their own permit offices and are not in this file.

  • The county's file names no contractor, so there are no contractor lists, rankings or firm pages for this county.
  • The file has no declared job value, so we show no costs.
  • The county moved to a new permit system in 2022 to 2024 and older permits were not carried over, so the window starts in October 2024, the first month the counts settle.
  • A final date comes from the county's finaled date; a permit the file marks Complete without one counts as finished but adds no days.

Counts are permits, not jobs: one job can need several permits. Nobody paid to be on this page and nobody can. Sources and definitions →

Cite this page

Free to reuse with attribution (CC BY 4.0). Please credit Contractor Records and link to this page. Suggested citation:

Contractor Records, "Home addition permits in unincorporated Maricopa County, AZ", https://contractorrecords.com/maricopa-county/addition-permits, data through September 2026, from Maricopa County Planning & Development building-permit records.

Link to a table: By month · Season · Days to final · By ZIP code.

Download the tables (CSV): Additions permits by month · Additions permits by calendar month (index) · Additions permits: days to final · Additions permits by ZIP code.

Common questions

  • How many home addition permits does Maricopa County issue a year?About 390 a year in unincorporated Maricopa County: 780 permits issued October 2024 through September 2026, 435 of them in the last 12 months.
  • How long does a home addition permit take in Maricopa County?The usual one took 109 days from issue to the county's final inspection, and the middle half took 40 to 196 days (280 permits issued Oct 2024–Sep 2025 that reached a final). The wait to get the permit issued is not in this file.
  • When do people in Maricopa County file the most home addition permits?December (125 against an average month of 100); November is the quietest (68). If you can choose, a quiet month at the permit counter can mean contractors have more room in their schedules.
  • Which ZIP code has the most home addition permits in Maricopa County?85375, with 166 of the 780 (21%); then 85351 (93).