Quick answer: For an unincorporated Maricopa County parcel, route the search by project date: Permit Center for May 18, 2009 forward and Permit Viewer for October 1, 1999 through May 17, 2009. Start with the Maricopa County permit research page, confirm that the address is actually in the agency’s service area, and save the permit number before reading status or inspection details.
At a glance
- Address search: Not confirmed. The county permit research page describes searching permit history by parcel.
- Online records start: October 1, 1999 in Permit Viewer; May 18, 2009 onward in Permit Center (county page).
- Older records: Permit Research Request form by mail with a check: $100 residential, $250 commercial. Average 7–10 business days.
- Checked: October 21, 2026. Compare 15 other jurisdictions in our permit lookup by address comparison.
Building Permit History tool · for buyers and owners
Permit status decoder
Copy the permit rows from the city or county portal and paste them below, one permit per line. The decoder explains each status, flags the ones to ask about, and lists what to request before you rely on the record.
Phoenix, Mesa, Scottsdale, Glendale, Tempe, Chandler, and other cities generally operate their own permit systems. The county research paths described here are for parcels and permits within unincorporated Maricopa County. For two of those cities, see finding Scottsdale permit documents through Document Search and checking Chandler permit status and requesting document copies.
Route Maricopa records by project start date
| What you know | Best first move | Evidence to save |
|---|---|---|
| Street address | Confirm unincorporated jurisdiction, then choose Permit Center or Permit Viewer by date | Standardized address, parcel match, result date |
| Parcel number | Use the assessor parcel number across current, legacy, and staff-research routes | Parcel identifier and linked address |
| Permit or record number | Search the exact permit in the system matching its date | Full record number, type, dates, status |
| Only an approximate work year | Use May 18, 2009 and October 1, 1999 as system boundaries | Date range tried and any older-system lead |
Search the address without creating a false negative
Current Permit Center instructions accept address or parcel searches. If the formatted address fails, abbreviate the direction and street type or search the parcel number with its punctuation. Do not force an address into the county system until jurisdiction is confirmed.
- Verify the parcel is unincorporated.
- Estimate the project start date.
- Use Permit Center for May 18, 2009 forward or Permit Viewer for October 1, 1999–May 17, 2009.
- Use the county research request for a staff search when self-service coverage is insufficient.
The county publishes a useful date split
Maricopa identifies a no-cost current system for projects starting May 18, 2009 forward and a legacy viewer for projects from October 1, 1999 through May 17, 2009. Paid staff research is a separate option for deeper parcel history; its fee is nonrefundable, so exhaust self-service routes first.
| Record signal | What it supports | What it does not prove |
|---|---|---|
| Application received | The agency opened a record | Plans were approved or a permit was issued |
| Permit issued | The listed scope was authorized | The work was completed or matches today’s building |
| Inspection passed | That inspection item passed on that date | Every trade and final inspection passed |
| Closed/finaled | The portal workflow reached a closing status | No unpermitted work exists outside the record |
What 15,548 recent Maricopa County residential permits show
We downloaded the county’s residential building permits from its open data (Maricopa County GIS, Building Permits, pulled October 24, 2026) for applications filed from July 2024 through June 2025, then measured the days from application to issue and checked each issued permit’s current status. Withdrawn and denied permits were left out. The numbers are our own calculation from county records, not figures published by Maricopa County Planning and Development.
We used that 12-month window because the public data set holds far fewer residential applications before mid-2024, about 200 a month in early 2023 against a steady 1,500 a month from mid-2024 on, and permit numbers change format in June 2024. Earlier years look incomplete in this data, so we did not compare them.
- Custom new home (1,441 permits): median 131 days to issue, slowest 10% at least 364 days; 7% now Expired and 32% still Issued, with no final.
- Production (tract) home (1,601 permits): median 28 days to issue, slowest 10% at least 95 days; 2% now Expired and 3% still Issued, with no final.
- Addition (614 permits): median 59 days to issue, slowest 10% at least 224 days; 11% now Expired and 10% still Issued, with no final.
- Alteration, remodel, or repair (820 permits): median 25 days to issue, slowest 10% at least 121 days; 20% now Expired and 4% still Issued, with no final.
- Pool or spa (1,194 permits): median 35 days to issue, slowest 10% at least 175 days; 4% now Expired and 4% still Issued, with no final.
- Solar (3,531 permits): median 5 days to issue, slowest 10% at least 52 days; 16% now Expired and 1% still Issued, with no final.
- Accessory structure (1,366 permits): median 66 days to issue, slowest 10% at least 269 days; 14% now Expired and 12% still Issued, with no final.
- Fence (1,101 permits): median 21 days to issue, slowest 10% at least 142 days; 17% now Expired and 2% still Issued, with no final.
- All residential permits (15,548 permits): median 24 days to issue, slowest 10% at least 171 days; 13% now Expired and 7% still Issued, with no final.
Three things stand out for anyone buying in unincorporated Maricopa County.
- Remodel permits expire more than any other type. 20% of alteration, remodel, and repair permits (164 of 820) already show “Expired,” even though they were issued only about a year or two ago. Fences (17%) and solar (16%) are next.
- Custom new homes are still mostly open. 32% of custom new-home permits (461 of 1,441) still read “Issued,” which is expected for houses that may still be under construction. Production homes built from standard plans move faster: 94% are already Complete.
- Permits here are issued quickly, except for new homes. The median residential permit was issued 24 days after application, and solar permits in 5. Custom new homes took a median of 131 days, with the slowest 10% at 364 days or more.
Limits of this count: these permits are recent, so more will reach Complete or Expired over time. The data covers permits issued by Maricopa County for unincorporated areas only; cities such as Phoenix, Mesa, Scottsdale, and Chandler issue their own. Status labels are the county’s current field on the pull date. Compare the same work in other places with our data on how long building permits take.
Pick a city, a type of work, and a year. See how long similar permits took to issue and how many never recorded a final inspection.
If the address is inside a city rather than unincorporated county land, start with that city’s guide instead: Phoenix, Mesa, Scottsdale, or Chandler.
Read status, inspections, and documents separately
Permit Center can show current permit progress and inspections, but older records in Permit Viewer may be expired, terminated, or finaled. Read the status label together with its system and project date.
- Match the work description to the part of the property you are checking.
- Open related electrical, plumbing, mechanical, roofing, fire, and zoning records when the portal separates them.
- Read the inspection list for a final or completion event; do not stop at the permit header.
- Save attached plans, correction notices, certificates, or decision letters only when the portal makes them public.
If the permit does not appear
A missing result can mean wrong city/county jurisdiction, the wrong date-based system, an address-format problem, or a record outside self-service coverage.
- Check the municipality before paying for research.
- Search both address and parcel number.
- Use the correct legacy/current date split.
- Describe the parcel and target work years precisely if submitting a paid research request.
Build a record packet another person can reproduce
Save the search date, address format, parcel identifier, jurisdiction check, permit numbers, status, inspection dates, and source links. Follow the building-permit record workflow so an empty result is documented rather than treated as proof. If the mailing city and permit authority differ, use the city-versus-county jurisdiction check before reaching a conclusion.
Do the free date-routed searches before paying
Maricopa’s permit research fee is nonrefundable. Save screenshots of the free current and legacy searches, confirm county jurisdiction, and narrow the work years and record type before requesting staff research.
Maricopa County permit search questions
Can I rely on an address-only search?
Use it as the first pass, not the final conclusion. Parcel numbers and exact permit numbers are more stable than street formatting, and older records may use a prior address or legacy index.
Does no online result mean no permit was required?
No. It may mean wrong jurisdiction, a limited online date range, alternate indexing, an exempt record, or a paper/image file. Ask the issuing office which possibility applies.
Official sources
- Maricopa County permit actions and research — official date routing for Permit Center, Permit Viewer, and staff research
- Maricopa County building permits — official current permit and inspection entry point
Septic systems follow a separate county route. If a sale is involved, see Maricopa septic transfer records for the inspection report and Notice of Transfer each property should have.
Last checked: August 23, 2026. Portal labels and record coverage can change; confirm the live agency page before relying on a result.
More from our permit data: what public permit records show across seven places.