Electrical permit history — 4102 E Linden St

Commercial property

4102 E Linden St

Built 1948 — 1940s commercial stock · last permitted panel/service work 2006 (finaled) · 1 open code case

Permanent link: Electrical permit history for 4102 E Linden St (aztucsonelectricalsolutions.com/property/122091500/4102-e-linden-st-tucson-az-85712) · Public records last checked 2026-08-16

Parcel

122091500

Built

1948 (county record)

Jurisdiction

Tucson

Zoning

R-1

Assessor use

Adult Home Care In Sfr Licensed

Parcel size

0.31 acres

Building area

2,405 sq ft (assessor record)

Cooling

Refrigeration (assessor record)

Heating

Forced Air (assessor record)

Roof

Tile (assessor record)

Pool

Yes (assessor record)

Sewer

Connection on file (1953) (county sewer connection records)

Flood zone

X — minimal flood hazard (FEMA)

Historic preservation

Not on file (City of Tucson HP layers)

Service on record

City records show the 2006 permit was finalized; the permit description states “UPGRADE: 100 AMP TO 200 AMP (APA)” — an increase in capacity as described, not a confirmed installed rating.

See the property

Pima County orthophoto (Pictometry 2024 / PAG 2023 / NAIP 2023 mosaic) — parcel outlined in yellow. Aerials can predate recent work and show nothing about what is inside; context, not evidence.

Street ViewGoogle Maps satelliteGoogle Earth (3D, historical imagery) ↗

Is it time to upgrade?

• Electrical service & distributionCurrentLast permitted 2006 (20 years ago). City inspection record: ELECTRIC - FINAL approved 2006-11-08. Contractor of record: CASCADE ELECTRIC INC *C. The permit describes an increase in capacity, which is the single best sign the electrical has actually been brought forward. Separately from replacement: NFPA 70E expects the arc-flash study to be reviewed at least every five years, or after any change to the service. T06EL02101 — UPGRADE: 100 AMP TO 200 AMP (APA)
• Heating, cooling & mechanicalNot in this windowNothing in the permit records we read for this parcel that names this system. Worth knowing: a 2023 fire operational 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. Packaged rooftop units work 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. Worth confirming from the equipment nameplate rather than the record. Replacing a rooftop unit is also an electrical question: the new unit's minimum circuit ampacity and its disconnect often differ from the old one.
• Fire alarm & life safetyCurrentLast permitted 2012 (14 years ago). Panels and devices age out on their own schedule, and the code moves underneath them — a system that was compliant when installed is not automatically compliant now. T12BU01250 — SPRINKLER MONITORING ALARM SYSTEM
• RoofNot in this windowNothing in the permit records we read for this parcel that names this system. The assessor records the roof as Tile. Roof age matters electrically too: it sets what can be penetrated for new rooftop units, conduit, or solar.

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 — high priority

  Distribution gear this age is frequently past the point where the manufacturer still supports it. Breakers and fusible switches for obsolete lines can carry long lead times, which turns an outage into a shutdown. The permit record does not confirm this; an on-site inspection is required.

• 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.

• Era-based check

  NFPA 70E expects arc-flash studies to be reviewed at least every five years, or after any change to the service. Buildings this age often have labeling that no longer matches the installed gear. The permit record does not confirm this; an on-site inspection is required.

• Worth confirming

  The assessor records a pool on this parcel. Equipment bonding, the equipotential bonding grid and GFCI protection on the pump and light circuits are the usual findings on pool equipment — the pool-bonding rules in NEC Article 680 were expanded in the 2008 cycle, so a pool built before that is worth an on-site check.

• Worth confirming

  Solar was permitted here in 2020. That means there is an existing interconnection, and the main breaker and busbar rating already carry a PV backfeed — so anything else you add (an EV charger, a heat pump) has to be checked against what is left under the 120% rule, not against the service size alone.

• Worth confirming

  An ADU or casita was permitted in 2006, which means load has already been added to this property. Whether there is headroom left for anything more depends on how that was fed — a subpanel off the existing service, or its own.

Recorded sales (3)

Recorded sales are the sales the Pima County Assessor has on file from affidavits of property value — not every transfer, not listings, and not a valuation. Parties are never shown here. A sale with no permitted electrical work since is worth knowing before the next sale or a remodel.

Most recent permit on record for this parcel: 2026-04-27 (TC-COM-0426-00615) — add 3 mini splits This permit is for the "West Room" mini split..

Permit history (28)

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.

Code enforcement (8)

Code cases and housing-code violations recorded against this parcel, by category. Closed cases stay on the record, and most of these are closed — check the status column. We show the category and the official record number rather than the complaint text, which often names people who have nothing to do with the property.

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. See an error in this public-record report? Report a correction · About this data.

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.