Colonia Del Valle: permit history and electrical signals
City of Tucson neighborhood in Ward 6 — north: 18th St. (both sides) and 14th Street, east: Wilmot, south: 22nd Street, west: Del Valle Ave. (both sides) & Craycroft. What the public record says about how old the houses are, what has been permitted since 2022, and what that usually means electrically — measured from the City’s own GIS layers, not estimated.
Colonia Del Valle by the numbers
Among the 12 neighborhoods in this hub, Colonia Del Valle ranks 7th for permit activity per home since 2022, 5th for panel and service upgrades per home (2 per 100 homes with a build year), and 1st for the share of pre-1974 housing.
Counts are City of Tucson GIS permit layers 85 (residential), 81 (commercial) and 102 (code enforcement) inside the neighborhood boundary, issued or opened on or after 1 January 2022 — the window those layers cover. Older permits exist in the City’s Property Research Online file and show up in the per-address report. Build years are the assessor’s published values, which stop at 2009. “Per 100 homes” divides by homes with a published build year; the comparison figure uses the same measure summed over the City’s 140 registered neighborhoods, not every parcel in the city.
When Colonia Del Valle was built
Highlighted bands are the eras that carry a known wiring or panel issue in Tucson housing.
Post-war services and ungrounded circuits
About 80% went up between 1950 and 1964 — Tucson's post-war boom. Services from those years were 60 to 100 amps, often a fuse panel since swapped for breakers without the service itself ever being enlarged. Grounded branch circuits did not become the norm until the early 1960s, and the cloth jacket on that era's cable embrittles in a Tucson attic. That is the 2nd-largest share of the 12 neighborhoods in this hub.
Aluminum branch-circuit wiring
Roughly 12% went up between 1965 and 1973 — the window when solid aluminum was used for 15 and 20 amp branch circuits. The wire itself is not the problem; the terminations are, and the accepted repairs are COPALUM crimps or AlumiConn connectors. A wire nut is not a repair. That is the 4th-largest share of the 12 neighborhoods in this hub.
Permit activity by year
| Year | All permits | Panel / service upgrades |
|---|---|---|
| 2022 | 27 | 6 |
| 2023 | 28 | 6 |
| 2024 | 30 | 4 |
| 2025 | 22 | 2 |
| 2026 (to date) | 66 | 2 |
Recent permits worth noticing in Colonia Del Valle
- solar2026-07-24 · TC-RES-0726-03892 — REV_1, Equipment location revision; INSTALLATION OF A 11.40 KW (AC) PV SYSTEM + BATTERY STORAGE
- panel2026-07-17 · TC-RES-0526-02361 — Electrical Panel Upgrade to 200A
- solar2026-07-01 · TC-RES-0626-02908 — 6.97kW Roof Mounted, Grid-Tied PV Solar System + SolarEdge Storage
- remodel2026-04-22 · TC-RES-0226-00545 — ADD NEW FULL BATHROOM IN CASITA. CONNECT NEW 3" SEWER LINE TO EXISTING. EXCAVATE TO WEST SIDE OF MAIN RESIDENCE TO CONNE
- solar2026-04-14 · TC-RES-0426-01592 — Installation of 10.25 kW PV System with PW3 battery and 225A MPU
- solar2025-12-24 · TC-RES-1125-05514 — Installation of a 3.49 kW (AC) PV System + Battery Storage
- solar2025-12-24 · TC-RES-1125-05700 — Install a 3.08 kW DC rooftop solar electric system addition to an existing 6.84 kW DC solar electric system.
- remodel2025-11-19 · TC-COM-0924-01715 — A door addition
Permit number, date, type and the City’s own description — nothing else. Each links to the official record.
Look up an address in Colonia Del Valle
Any address in Pima County works. You get the parcel, the year built, the full permit history (City file back to about 2006), the code cases, and what each system’s record implies — plus an AI read of the whole record and of the plan sheets behind a City permit.
What we do with this in Colonia Del Valle
In Colonia Del Valle the record since 2022 shows 20 permitted panel or service upgrades since 2022 (5th of 12 per home), 5 HVAC changeouts, 11 remodels or additions, 19 solar installs across 992 homes with a build year — pre-war and post-war housing where the panel, the service and the branch wiring are usually the first questions. Arizona Electrical Solutions holds four ROC licenses (electrical CR‑11, HVAC CR‑39, general building KB‑1, general engineering KA), all Dual, so the same crew can do the panel, the circuits and the mechanical side.
- Panel & service upgrades
- Size the service (NEC 220.82)
- Ask us about a property here
- Federal Pacific & Zinsco panels in Tucson · selling with unpermitted electrical work · how to find permit history
Other neighborhoods in the hub: Sam Hughes · Armory Park · Blenman-Elm · Palo Verde · La Madera · Corbett · Sunnyside · West University · Campbell-Grant Northeast · Myers · Dietz · all neighborhoods.