Electrical permit history — 719 S 4th Av

719 S 4th Av, Tucson — built 1923, with 12 permits on record. Review electrical, HVAC and remodel history with links to official records.

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719 S 4th Av

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 1923 — pre-1950 knob-and-tube era · last permitted panel/service work 2017 (finaled); a newer 2026 permit is issued

Permanent link: Electrical permit history for 719 S 4th Av (aztucsonelectricalsolutions.com/property/117072360/719-s-4th-av-tucson-az-85701) · Public records last checked 2026-09-22

Is it time to upgrade?

  • Electrical service & panelFinaled permit foundA newer 2026 permit for the same system is recorded as “Inspections” — The work was permitted, but final completion is not confirmed. The permit description states “Service upgrade to 400 amps”. Last permitted 2017 (9 years ago). The permit describes an increase in capacity, which is the single best sign the electrical has actually been brought forward. T17CM01867 — ELECTRICAL UPGRADE 200A
  • Heating & coolingNot in this windowNothing in the permit records we read for this parcel that names this system. Worth knowing: a 2025 historic preservation zone/landmark - major permit is on file (and 2 more like it) — work like this is often folded into a larger permit without being named, so open that record and check its scope before concluding anything. The assessor records cooling as Refrigeration and heating as Forced Air. 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. The assessor records the roof as Built Up.
  • 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

    A finaled 2017 panel/service permit is on record for this parcel, which makes it unlikely the original 30–60 A equipment is still in place. That is a permit record, not an inspection — verify the installed rating and the panel brand on site before sizing anything new. The permit record does not confirm this; an on-site inspection is required.

  • Era-based check — high priority

    Knob-and-tube wiring may still be present in original, un-remodeled areas. It has no ground and is not rated for modern loads or insulation contact. The permit record does not confirm this; an on-site inspection is required.

  • Era-based check — high priority

    Branch circuits from this era are typically ungrounded two-wire — the reason you see two-prong outlets or ungrounded three-prong replacements. The permit record does not confirm this; an on-site inspection is required.

  • Routine

    A trade permit was pulled in 2017. 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. Check them against the rating the permit above describes rather than against the era — the permit is the better evidence, and neither one is an inspection.

  1. 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.
  2. 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.
  3. The manufacturer and catalog number on the label inside the door.
  4. 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.
  5. The conductor material at the main lugs, and whether the terminations look clean and tight.
  6. 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.
  7. 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.
  8. Whether any knob-and-tube is still live where it is visible — in the attic, the basement or a crawlspace — and whether insulation has been laid over it.
  9. Whether receptacles are two-prong, and whether any three-prong replacements have an actual ground behind them. A $10 tester answers this at every outlet.
  10. Whether the kitchen counter, bathroom, garage and exterior receptacles have GFCI protection, and whether the test button actually trips them.

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. It offers to start from the 2,658 sq ft on the assessor record; every other value is yours to enter.

Open the load calculator →

What these jobs cost here

A service upgrade is already on record here — you may not need this work at all.

Air conditioning or heat pump replacement

$17,500

Most jobs like this land between $13,900 and $22,000.

Priced from 2,658 sq ft → about 5.5 ton as a starting point (a Manual J is the real answer), cooling on the assessor record reads “Refrigeration”, City of Tucson permit fee, one storey on the assessor record, so an ordinary roof set is priced and a foam or built-up roof on the assessor record — the patch has to be re-coated, and your roof warranty may require the original roofer.

What would move this price
  • Only if the duct has to be replaced — no record carries its condition, and on an attic system at this age it is a real possibility +$12,200
  • Only if it is a foam or built-up roof that has to be re-coated at the patch +$900

If every one of those turned out to apply, this becomes about $35,200. That is the worst realistic case, not a prediction — none of them is a claim about your house.

  • Most Tucson houses carry a packaged unit on the roof, and how easy that roof is to reach is worth more than a thousand dollars of difference on the same equipment.
Before you spend anything
  • If you are told a heat pump means you need a 200 A service, ask which load. It is almost never the compressor — a 5-ton outdoor unit is about a 31 A circuit. It is the electric BACKUP HEAT STRIP, which on a large kit can be a 109 A circuit on its own. In Tucson's mild heating season the strip kit can often be sized far smaller, or left out, and the service question disappears with it.
  • Equipment here lasts ten to fourteen years, not the fifteen to twenty you will read nationally — a rooftop package unit at the short end. Replace rather than repair if the unit is twelve or more and the repair is over $1,500, if the compressor has failed and it is eight or more, or if the repair is over 40% of a new system.
  • The size you will be quoted is probably bigger than the size you need. The square-foot rule every contractor uses runs roughly two to three times oversized against real load calculations — reviews of hot-climate homes commonly land nearer 1,200 sq ft per ton than the 400 to 600 the rule assumes. A correctly sized unit costs less to buy, and in a dry climate an oversized one short-cycles and leaves the house clammy in the monsoon. Ask for the Manual J before you accept the tonnage.

The record already shows a finalled service upgrade in 2017, so we are not pricing one. Read the number on the main breaker handle before you spend anything — if it says 200, this job is done.

What the record cannot tell us
  • The duct. No record carries its condition, and on a Tucson house with duct in an unconditioned attic it is often worth more than a bigger machine.
  • Whether that floor area is all conditioned space. An assessor figure can include a garage, an enclosed porch or an addition that was never cooled, and every square foot of that oversizes the equipment this page priced.

This is an estimate, not a quote. It is built from this property’s public record and current City of Tucson market rates — nobody has seen your panel, your duct or your roof. A real price comes from a site visit, and the things that move it most are the ones listed above that no record carries.

Price it for your house →

Change the assumptions — the panel’s location, the duct, the tonnage, whether the service is overhead or underground — and watch the number move. That is the point of it.

Solar potential

The county’s building-footprint layer maps ≈ 6,094 sq ft of roof plan area here across 3 structures. In Tucson a rooftop array produces about 1,645 kWh per installed kW per year (PVWatts), so a typical 6–8 kW home system fits on a fraction of that roof and makes roughly 10,000–13,000 kWh a year. TEP credits exported surplus at its RCP rate — about 5¢/kWh for new applications, locked for 10 years — so sizing to the home’s own use matters more than filling the roof. If solar shows in this property’s permit record, check whether it was permitted and finaled.

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
117072360
Year constructed
1923 (county record)
Permitting authority
Tucson
Zoning
HR-3
Living area
2,658 sq ft
Cooling
Refrigeration
Heating
Forced Air
Historic preservation
(City of Tucson)
Estimated electrical service era
approximately 30–60 A (estimated from the year built, 1923 — not a measurement; verify on site)
Service on record
City records show the 2017 permit was finalized; the permit description states “ELECTRICAL UPGRADE 200A” — an increase in capacity as described, not a confirmed installed rating.

The living area, cooling and heating above come 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 2026. 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 2026. 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 12 building permits for this parcel dated between 2013 and 2026. By category the work is addition / alteration (5), trade permit (3), pool / spa and historic preservation zone/landmark - major. 4 of them carry a final inspection; the other 8 were issued, expired or are still open, which is not the same as work completed. There are 2 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.

Residential building (4): 2026 TC-RES-0626-03271 · 2026 TC-RES-0526-02448 · 2026 TC-RES-1025-05181 · 2025 TC-RES-0425-01712

City permit record (8): 2025 SD-1225-00188 · 2025 TC-RES-0325-01331 · 2024 TP-PRE-1024-00247 · 2018 T18CM00712 · 2017 T17CM02361 · 2017 T17SA00141 · 2017 T17CM01867 · 2013 T13CM02977

Code enforcement cases (2): 2016 T16DV06468 · 2015 T15DV08611

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 117072360. 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 85701 · Homes by ZIP code · Commercial property in 85701 · Permit data by neighborhood

Where to go from here

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 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 1923 — earlier than about 67% of the 1,276 homes in ZIP 85701. 2,658 sq ft of living area — above this ZIP’s median of 1,428 sq ft. About 28% of homes in this ZIP still cool with evaporative — this one has moved to refrigeration cooling. Properties on S 4TH AV hold 533 City permits on record, 163 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 117072360 — 12 City permits on file from 2013 to 2026 and 2 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, cooling, heating, roof, walls 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 2026-09-22.

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.