Electrical permit history — 1501 E Knox Dr
1501 E Knox Dr, Tucson — with 3 permits on record. Review electrical, HVAC and remodel history with links to official records.
Electrical Property Screening Report · Home
1501 E Knox Dr
A screening report for electrical planning, assembled from public-record indicators. It is not an official record and every figure in it should be verified against the issuing agency before it is relied on.
Verify parcel data at official source ↗
Build year not published — permits on file from 1997 · 3 permits on record; no permitted panel/service or HVAC work among them
Permanent link: Electrical permit history for 1501 E Knox Dr (aztucsonelectricalsolutions.com/property/113015070/1501-e-knox-dr-tucson-az-85719) · Public records last checked 2026-08-22
Is it time to upgrade?
- Electrical service & panelNot in this windowNothing in the permit records we read for this parcel that names this system. No permitted service work shows in the record we read. Homes of this era typically started with 100 to 150 A service; whether that still fits depends on what has been added since — air conditioning, a spa, an EV charger.
- Heating & coolingNot in this windowNothing in the permit records we read for this parcel that names this system. Cooling equipment works harder in Tucson than almost anywhere, so 12 to 15 years is a realistic service life rather than the 15 to 20 the industry quotes.
- Water heaterNot in this windowNothing in the permit records we read for this parcel that names this system. Water heaters are frequently swapped without a permit, so this line is especially weak evidence either way.
- RoofNot in this windowNothing in the permit records we read for this parcel that names this system.
- Plumbing work on recordNot in this windowNothing in the permit records we read for this parcel that names this system. Unremarkable — plenty of buildings never need a permitted plumbing repair.
A found permit means a lot. A missing one means less. We read the City of Tucson’s own permit file, not a recent extract of it — back to about 2006, and into the 1990s on properties with that much history. Microfiche before then was never fully digitized. Every record links to the city’s official file. A blank line does not say nothing was done: work gets done without permits all the time. The only way to know what is actually installed is to look at it.
What that usually means electrically
- Era-based check
AFCI protection did not enter the code until the 1999 NEC (bedroom circuits, effective 2002) and was not expanded to most living areas until 2008 — so houses from the earlier part of this range typically have none at all. The permit record does not confirm this; an on-site inspection is required.
- Era-based check
200 A is typical and is usually adequate — worth confirming the panel has physical space before planning new loads. The permit record does not confirm this; an on-site inspection is required.
What to check at the panel
Everything above is read off public records. These are the things only someone standing at the panel can settle, and they take about a minute.
- The number stamped on the main breaker handle — 100, 125, 150, 175 or 200. That is the service rating, and no record on this page confirms it.
- The busbar rating printed on the panel label. It is a different number from the main breaker, and it is the one that decides how much solar a panel can take under the 120% rule.
- The manufacturer and catalog number on the label inside the door.
- How many full-size spaces are left, how many positions the label permits a tandem breaker in, and the tandem limit the label states. A full panel is a different job from a full service.
- The conductor material at the main lugs, and whether the terminations look clean and tight.
- Whether there is a separate meter-main outside as well as the panel indoors — that changes where a disconnect and any new feeder would land.
- Whether the water heater, dryer and range are gas or electric. No public record carries fuel type, and it is the single biggest variable in a load calculation — it can move the calculated load on the same house by more than 40 A.
With those in hand you can run the numbers yourself. The load calculator does the NEC 220.82 optional-method calculation — the same method a permit application uses — and shows its work.
What these jobs cost here
The public record for this parcel is too thin to price it honestly — only build year is known for this parcel — not enough to price it as anything but a city average. Rather than show you a number that is really just a City of Tucson average wearing this address, the calculator will ask you the four or five things that actually decide it and price it properly.
Flood and drainage
The federal flood map and the local one are not the same map, and they do not always agree. FEMA’s is the insurance map; the City of Tucson regulates against its own, and that is the one a permit here is judged against.
- FEMA: we did not read the federal flood map for this snapshot, so no zone is shown here. That is a gap in this page, not a statement about the property. Check FEMA’s flood map for this address ↗
- Local floodplain (the City of Tucson): local floodplain mapping is not reproduced here. A property can sit outside FEMA’s zone and still be inside a locally regulated floodplain, floodway, sheet-flooding area or erosion hazard setback, so check the authority’s own map before planning work. Pima County RFCD flood hazard map for parcel 113015070 ↗ · the City of Tucson ↗
The record behind this read
- Parcel
- 113015070
- Year constructed
- 1997 (earliest permit on file)
- Permitting authority
- Tucson
- Zoning
- R-1
- Estimated electrical service era
- approximately 200 A (estimated from the year built, 1997 — not a measurement; verify on site)
The most recent permitted work on this parcel was in 1998. That says the parcel was worked on under permit, not what the work covered — a roof, a pool or a changeout tells you nothing about the electrical service. Work done without a permit leaves no trace here at all.
What this means for work here
Informational public-record summary — not engineering, inspection, valuation or purchasing advice, and not the official record.
The most recent permitted work on this parcel was in 1998. That says the parcel was worked on under permit, not what the work covered — a roof, a pool or a changeout tells you nothing about the electrical service. Work done without a permit leaves no trace here at all.
What that reading rests on. The issuing offices hold 3 building permits for this parcel dated between 1997 and 1998. By category the work is trade permit (2) and grading. 1 of them carries a final inspection; the other 2 were issued, expired or are still open, which is not the same as work completed. There are 3 code-enforcement cases recorded against the parcel, all of them closed. We do not reproduce complaint text — it routinely names people with no connection to the property.
Go straight to the records
Each link opens the issuing office’s own file for that record — dates, scope, status and inspections are theirs to publish, and they are all on the other side of these links.
Code enforcement cases (3): 2013 T13DV04561 · 2012 T12DV02771 · 2011 T11DV05297
City permit record (3): 1998 T98EL01134 · 1997 T97BU00471 · 1997 T97PL00480
Read the records yourself. We republish selected facts and record numbers so you can find the file; the issuing agency’s record controls. The files are held by City of Tucson permit record (PRO) ↗ — search the parcel number 113015070. Permit and parcel information courtesy of the City of Tucson and Pima County; their files are the official record and control over anything summarized here.
This is an inference from public records — the year a structure was built, how it is classified, and what has been permitted. It is not an inspection, and nothing here confirms what is actually installed at this address. The only way to know is to look in the panel. See an error in this public-record report? Report a correction · About this data.
Utility and upgrade pathElectric service here is Tucson Electric Power (TEP). A service or panel upgrade needs a TEP meter release and has to meet TEP’s service requirements — meter height and location, clearances, and the point of attachment. See TEP new-service requirements and the TEP standards notes.
In the public record: All homes in 85719 · Homes by ZIP code · Commercial property in 85719 · Permit data by neighborhood
Planning work at this home?
Arizona Electrical Solutions provides electrical, HVAC, underground, design-build, tenant-improvement and general-contracting services in Tucson (four Arizona ROC licenses). Choose what describes you and send us this property’s address and public-record report for review — the address, parcel, report link and permit record travel with the request automatically.
The contractor’s read is a plain-English brief of the record above, written by AI — what it shows across electrical, mechanical and the building itself, what is missing for the era, and what to verify on site.
The permanent link and the summary above, sent once. No list.One email when a new permit, inspection result or code case appears on this parcel — nothing else, and you can stop any time. No list.
What the flood note is not. The flood zone shown is FEMA’s National Flood Hazard Layer — the federal insurance map. Local floodplain mapping is not reproduced here; use the authority’s own map, linked above. Nothing here is a floodplain determination, an elevation certificate, or a substitute for one. A parcel can straddle a boundary, and a Letter of Map Amendment can remove a structure the map still covers. For a determination, ask the floodplain administrator for the jurisdiction named above; for a design that has to satisfy one, that is work we do.
How this property compares nearby
Built in 1997 — earlier than about 11% of the 8,892 homes in ZIP 85719. Properties on E KNOX DR hold 83 City permits on record, 14 of them since 2022.
Computed from the same public records as this report — counts and years, not an appraisal.
prints this report — permits, comparisons and sources — as a clean document
How this report was built
This is a reading of public records for parcel 113015070 — 3 City permits on file from 1997 to 1998 and 3 code enforcement cases — assembled from the Pima County parcel file and the City of Tucson’s published permit layers together with the City’s own migrated permit archive, whose records reach back to the mid-1990s. Some records were still not read for this snapshot: City permit records before the mid-1990s were never fully digitized. The assessor’s building record, the sewer connection file and the flood map were also not read for this snapshot. Absence of a permit here is NOT evidence work was never permitted — it may predate the digitized record or sit in a system this snapshot did not read. Public records snapshot taken 2026-08-22.
The verdicts are inferences from what was permitted and when, and from the era the building went up; they are not an inspection, and nothing here confirms what is installed. Written and maintained by Arizona Electrical Solutions, LLC, a licensed Tucson contractor (ROC 276948 CR-11 electrical, ROC 326401 CR-39 HVAC, ROC 329360 KB-1, ROC 312437 KA).
Look up a different address: Tucson permit history & electrical upgrade check · see permit data by neighborhood.