Electrical permit history — 4001 E Blacklidge Dr

4001 E Blacklidge Dr, Tucson — built 1974, with 72 permits on record. Review electrical, HVAC and remodel history with links to official records.

Electrical Property Screening Report · Manufactured home

4001 E Blacklidge 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 ↗

Built 1974 — manufactured home · HVAC 2025 (permitted, completion not confirmed) · 1 open code case

Is it time to upgrade?

  • Electrical service & panelNot in this windowNothing in the permit records we read for this parcel that names this system. Nothing permitted on the service shows in the record we read. For a home built in 1974 that leaves the original service era in play — the panel makes and wiring methods of that era are exactly what the era check above flags, and only a look at the panel settles it.
  • Heating & coolingPermitted — completion not confirmedA 2025 permit specifies this work (the permit description states “3 TON CONDENSER CHANGEOUT IN THE BACKYARD INCLUDING AN INDOOR COIL AND A 60K BTUS FURNACE CHANGEOUT IN THE CLOSET.”), but the available record does not show a final inspection. The work was permitted, but final completion is not confirmed. Official status: Inspections. TC-RES-0925-04310 — 3 TON CONDENSER CHANGEOUT IN THE BACKYARD INCLUDING AN INDOOR COIL AND A 60K BTUS FURNACE CHANGEOUT IN THE CLOSET.
  • Water heaterLikely dueA newer 2024 permit for the same system is recorded as “Issued” — The work was permitted, but final completion is not confirmed. The permit description states “REMOVE & REPLACE MOBILE FURNACE, LIKE FOR LIKE; REMOVE & REPLACE 30 GAL MOBILE WATER HEATER, LIKE FOR LIKE”. Last permitted 2007 (19 years ago). T07PL00310 — REPLACE: WATER HEATER (APA)
  • 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

  • Worth looking at

    There is an open code enforcement case on this parcel. An open case can hold up a permit, and if it touches unpermitted work the electrical scope usually has to be brought up to code as part of resolving it.

  • Worth confirming

    This reads as a manufactured or mobile home. The electrical questions are different from a stick-built house: the service and meter usually sit on a separate pedestal, and the feeder from that pedestal to the home is where undersizing and corrosion show up first.

  • Worth confirming

    Bonding and grounding are the common finding on older units — the frame must be bonded, and the neutral and ground have to stay separated downstream of the service disconnect at the pedestal.

  • Worth confirming

    A pool or spa was permitted in 2009. Pool equipment brings its own bonding grid, GFCI requirements, and usually a subpanel — and the bonding rules have tightened since, so older installations are worth verifying.

  • Routine

    Adding an EV charger, a mini-split, or a casita usually means looking at the pedestal service and feeder capacity rather than the panel inside the home.

  • Routine

    A trade permit was pulled in 2020. Trade permits cover electrical, plumbing, and mechanical work individually, so some permitted trade work has been done here since.

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.

  1. The rating on the main breaker at the service pedestal, not the panel inside the home — the pedestal is the service.
  2. The condition of the feeder running from the pedestal to the home, and its rating. Undersizing and corrosion show up here first.
  3. Whether the frame is bonded, and whether neutral and ground are separated downstream of the pedestal disconnect. This is the most common finding on older units.
  4. 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 what the service can still take.

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.

Open the load calculator →

See the property

Satellite imagery © Google. Imagery can predate recent work and shows nothing about what is inside — context, not evidence.

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.

The record behind this read

Parcel
11006007B
Year constructed
1974 (assessor record)
Permitting authority
Tucson
Zoning
MH-1
Living area
1,952 sq ft

The living area above comes from the Pima County Assessor’s record, as we read it on 28 Jan 2026. Each other row names its own source.

The most recent permitted work on this parcel was in 2025. 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 2025. 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 72 building permits for this parcel dated between 1997 and 2025. By category the work is trade permit (55), manufactured home (11), floodplain use (3) and addition / alteration (2). 33 of them carry a final inspection; the other 39 were issued, expired or are still open, which is not the same as work completed. There are 10 code-enforcement cases recorded against the parcel, 1 of which is open. 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.

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 11006007B. 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 mobile-home parks · Commercial property in 85712 · Commercial & industrial reports · Homes in 85712 · 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.

What describes you?
Call (520) 308-6235

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.

What the flood note is not. The FEMA map linked above is the 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

Properties on E BLACKLIDGE DR hold 204 City permits on record, 56 of them since 2022.

Computed from the same public records as this report — counts and years, not an appraisal.

Complete permit record (82 entries)

Every permit and case we hold for this parcel, newest first. Each number links to the official file.

YearNumberTypeStatus
2025CE-VIO1025-04640FireClosed - Resolved
2025TC-RES-0925-04310Residential Trade PermitInspections
2025TC-FBB-0325-00044Manufactured Home PermitIssued
2025TC-FBB-0325-00043Manufactured Home PermitIssued
2025TC-FBB-0425-00069Manufactured Home PermitInspections
2025TE-FPU-0525-00185Floodplain Use PermitIssued
2025TE-FPU-0525-00186Floodplain Use PermitIssued
2024TC-RES-0324-01610Residential Trade PermitIssued
2024TC-RES-0324-01229Residential Trade PermitIssued
2024TC-RES-0324-01228Residential Trade PermitIssued
2023TC-RES-1223-10137Residential Trade PermitExpired
2023CE-VIO1223-06735Code enforcement caseActive
2023TC-RES-0823-07381Residential Trade PermitIssued
2023TC-RES-0123-02474Residential Trade PermitIssued
2022TC-RES-1222-01338Residential Trade PermitIssued
2022TC-RES-1122-00704Residential Trade PermitIssued
2022TC-RES-1122-00701Residential Trade PermitIssued
2022T22CM07250Residential Trade PermitIssued
2022T22CM07249Residential Trade PermitIssued
2022T22CM06160Residential Trade PermitIssued
2022T22CM05965Residential Trade PermitIssued
2022T22CM03516Residential Trade PermitIssued
2021T21CM08124Residential Trade PermitExpired
2020T20CM03850Residential Trade PermitComplete
2020T20DV04009RESIDENTIAL ZONINGCOMPLIAN
2020T20MH00025Manufactured Home PermitIssued
2019T19MH00060Manufactured Home PermitIssued
2018T18DV08295RES: MINIMUM HOUSINGNOVERIFY
2018T18DV08234OBSTR DEAD TREES AND SHRUBSREFERRED
2018T18MH00178Manufactured Home PermitIssued
2018T18DV01176EMERGENCYCOMPLIAN
2017T17DV05348EMERGENCYCOMPLIAN
2015T15DV08867WORK WITHOUT PERMITS-RESIDENTLNOVERIFY
2014T14CM06669Commercial Trade PermitCanceled
2014T14DV04289REFUSENOVERIFY
2012T12CM06959Residential Trade PermitCanceled
2012T12CM06512Residential Trade PermitCanceled
2012T12MH00024Manufactured Home PermitComplete
2011T11CM03826Residential Trade PermitWithdrawn
2011T11DV05292RES: MINIMUM HOUSINGNOVERIFY
2011T11SA00225Zoning ComplianceComplete
2011T11MH00018Manufactured Home PermitComplete
2010T10PL00316Residential Trade PermitComplete
2010T10PL00231Commercial Trade PermitComplete
2010T10PL00242Residential Trade PermitWithdrawn
2010T10PL00207Commercial Trade PermitComplete
2009T09PL00942Residential Trade PermitComplete
2009T09PL00766Residential Trade PermitWithdrawn
2009T09PL00743Residential Trade PermitComplete
2009T09PL00523Residential Trade PermitComplete
2009T09PL00524Residential Trade PermitComplete
2009T09PL00491Residential Trade PermitComplete
2009T09PL00492Residential Trade PermitComplete
2009T09PL00493Residential Trade PermitComplete
2009T09PL00494Residential Trade PermitComplete
2009T09PL00473Residential Trade PermitComplete
2009T09PL00474Residential Trade PermitComplete
2009T09PL00441Residential Trade PermitComplete
2009T09PL00442Residential Trade PermitComplete
2009T09PL00443Residential Trade PermitComplete
2009T09PL00330Commercial Trade PermitComplete
2009T09PL00317Commercial Trade PermitComplete
2009T09PL00216Residential Trade PermitComplete
2009T09PL00195Commercial Trade PermitComplete
2009T09PL00181Residential Trade PermitComplete
2009T09PL00166Commercial Trade PermitComplete
2008T08ME00319Residential Trade PermitCanceled
2008T08CM00827Commercial Addition/Alteration PermitCanceled
2008T08PL00100Residential Trade PermitComplete
2007T07CM02525Residential Addition/Alteration PermitCanceled
2007T07OT01581Floodplain Use PermitComplete
2007T07PL00310Residential Trade PermitComplete
2004T04ME00642Residential Trade PermitCanceled
2001T01MH00660Manufactured Home PermitCanceled
2000T00MH00010Manufactured Home PermitCanceled
2000T00ME00063Residential Trade PermitComplete
1998T98MH00316Manufactured Home PermitComplete
1998T98PL00361Residential Trade PermitComplete
1997T97PL00994Residential Trade PermitCanceled
1997T97ME00130Residential Trade PermitComplete
1997T97ME00049Commercial Trade PermitCanceled
1997T97ME00045Residential Trade PermitWithdrawn

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 11006007B — 72 City permits on file from 1997 to 2025 and 10 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 construction year, living area on this page come from our saved copy of the Assessor’s own published data file (dated 2026-01-28). The sewer connection file and the flood map were 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.