Electrical permit history — 2821 E Blacklidge Dr

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2821 E Blacklidge Dr

Permanent link: Electrical permit history for 2821 E Blacklidge Dr (aztucsonelectricalsolutions.com/property/112042390/2821-e-blacklidge-dr-tucson-az-85716) · Public records last checked 2026-08-16

Parcel

112042390

Built

1955 (county record)

Jurisdiction

Tucson

Zoning

R-1

Assessor use

Sfr Grade 010-3 Urban Subdivided

Parcel size

0.21 acres

Typical original service for a 1955 home

approximately 60–100 A

Service on record

City records show the 2003 permit was finalized; the permit description states “UPGRADE:ELECTRIC 100AMP TO 200AMP (APA)” — an increase in capacity as described, not a confirmed installed rating.

Is it time to upgrade?

• Electrical service & panelCurrentLast permitted 2003 (23 years ago). The permit describes an increase in capacity, which is the single best sign the electrical has actually been brought forward. T03EL02324 — UPGRADE:ELECTRIC 100AMP TO 200AMP (APA)
• 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 recordOn recordA 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 “Interior hot & cold repipe of the domestic water distribution system”. Last permitted 2012 (14 years ago). Plumbing permits cover everything from a full re-pipe to a few feet of sewer repair, so this is a record that work happened rather than a statement about the whole system. T12CM00762 — SEWER LINE REPLACEMENT - RES

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 digitised. 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

  60–100 A was standard. That is enough for a mid-century house, not for a modern kitchen, HVAC, and an EV. The permit record does not confirm this; an on-site inspection is required.

• Era-based check

  Federal Pacific (Stab-Lok) and Zinsco/Sylvania panels were sold through this period. Stab-Lok breakers have a documented history of failing to trip internally; Zinsco breakers can weld to the bus so the handle moves without breaking the circuit. In both cases a replacement breaker does not resolve it — the panel itself is what gets replaced. The permit record does not confirm this; an on-site inspection is required.

• Era-based check

  Grounded branch circuits did not become the norm until the early 1960s — much of the original wiring here is likely ungrounded. The permit record does not confirm this; an on-site inspection is required.

• Era-based check

  Cloth-jacketed NM cable is common in this era. The jacket embrittles with age and heat, particularly in Tucson attics. The permit record does not confirm this; an on-site inspection is required.

Most recent permit on record for this parcel: 2025-01-13 (TC-RES-0125-00174) — NEW WATER SERVICE LINE INSTALL FROM METER TO BUILDING.

Permit history (7)

How to read the status column: Final / Complete / C of O — city records show the permit was finalized. Issued — the work was permitted, but final completion is not confirmed. Applied / In review / Approved / Fees paid — proposed, not completion. Expired — the permit expired without a confirmed final status. Void / Withdrawn / Canceled — not evidence the work was installed. Any other status is shown exactly as the issuing office records it, without a completion reading.

Record numbers link to the City of Tucson’s official file. Highlighted rows are the ones that imply electrical work or an unpermitted-work finding.

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.