Electrical permit history — 951 E Hermans Rd

Electrical Property Screening Report · Commercial property

951 E Hermans Rd

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.

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Built 1975 — 1970s commercial stock · HVAC 2004 (finaled); a newer 2022 permit is issued

Permanent link: Electrical permit history for 951 E Hermans Rd (aztucsonelectricalsolutions.com/property/14043013e/951-e-hermans-rd-tucson-az-85756) · Public records last checked 2026-09-22

Is it time to upgrade?

• Electrical service & distributionNot in this windowNothing in the permit records we read for this parcel that names this system. Worth knowing: a 2024 fire alarm system 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. Nothing permitted on the service or distribution shows in the record we read, which for a building of this era leaves the original switchgear generation in play. Obsolete distribution lines carry breaker and fusible-switch lead times that turn an outage into a shutdown — worth establishing what is actually installed before a new tenant or a new rooftop unit. 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.
• Heating, cooling & mechanicalLikely dueA newer 2022 permit for the same system is recorded as “Issued” — The work was permitted, but final completion is not confirmed. The permit description states “Replacement of existing evaporative cooling/gas heating make-up air units serving the East portion o”. Last permitted 2004 (22 years ago). 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. Equipment from before about 2010 generally runs R-22, which has not been produced since 2020 — repairs mean reclaimed refrigerant at a price that often exceeds replacing the unit. T04CM00384 — INSTALL:HVAC SYSTEM
• Fire alarm & life safetyFinaled 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 “REPLACE EXISTING CONVENTIONAL GAMEWELL FIRE ALARM SYSTEM WITH NEW ADDRESSABLE GAMEWELL FIRE ALARM SYSTEM. REPLACE ALL NOTIFICATION DEVICES WITH NEW.”. Last permitted 2024 (2 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. TF-FCP-0924-00759 — Adding Starlink Cellular Dialer to an existing system
• RoofNot in this windowNothing in the permit records we read for this parcel that names this system. 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. This parcel is in unincorporated Pima County, whose building permits are issued by Pima County Development Services and are not part of this record — what is shown here comes from the regional records, and is likely incomplete for this address. A records request to the county is the authoritative check. 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.

• 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.

• Routine

  A trade permit was pulled in 2023. Trade permits cover electrical, plumbing, and mechanical work individually, so some permitted trade work has been done here since.

Solar and energy potential

Roof footprint

≈ 953,948 sq ft (county building-footprint layer, 29 structures)

Usable for solar, planning estimate

≈ 667,800 sq ft (~70% after setbacks, rooftop equipment and access paths)

Array that could fit

on the order of 7,350 kW — roughly 18,380 panels (low-tilt ballasted rows, 400 W class modules)

Estimated annual production

≈ 12,090,000 kWh (PVWatts, Tucson sun, low-tilt south)

Energy-charge offset at TEP commercial rates

$967,000–$1,572,000 a year (8–13¢/kWh energy + power-supply charges, by season and rate class)

Planning-level arithmetic on the roof area above — not a shading study, a structural review or a design. The offset assumes the building uses the power as it is generated; TEP pays far less (its export rate is about 5¢/kWh) for surplus sent to the grid, so the load profile decides the real value. The 30% federal credit (§48E) still applies to commercial systems placed in service by the end of 2027 — projects that began construction by July 4, 2026 have longer; confirm timing with a tax adviser.

TEP grid capacityThis parcel is not inside any of the 11 areas TEP has mapped as saturated with distributed generation (the nearest, “I-10 and Valencia Rd”, is about 2.5 miles away — TEP’s map set, July 2020). New generation still goes through TEP’s interconnection screens, and a heavy new load still merits a utility capacity check — the maps only mark where that review is most likely to bite.

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The record behind this read

Parcel

14043013E

Year constructed

1975 (assessor record)

Permitting authority

Unincorporated Pima County

Zoning

CI-2

Property type

Municipal Comm Prop Ipr

Building area

1,075,206 sq ft

The building 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 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.

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 out here is split: Trico Electric Cooperative serves much of unincorporated Pima County, Tucson Electric Power serves the rest, and a few areas sit on other systems. The meter release, clearances and point of attachment for an upgrade come from whichever utility serves the meter — check a recent bill or the meter label. See TEP new-service requirements for the TEP side.

In the public record: All institutional and public property · Commercial property in 85756 · Commercial & industrial reports · Homes in 85756 · Permit data by neighborhood

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.