# Building permits at 3902 San Mateo Ave, Riverside, CA

Two permits here in the last two years. The newest, Aug 12, 2025: Electrical service upgrade to dual gang meter panel to 200 amps. Riverside publishes permits without map coordinates, so this address has no map and no quarter-mile list.

## At this address

| Date | Type | Work | Cost | Permit |
|---|---|---|---|---|
| Aug 12, 2025 | Electrical | Electrical service upgrade to dual gang meter panel to 200 amps, 100 amps to main residence and 100 amps to ADU | $850 | [EP-2025-07877](https://nearbypermits.com/riverside/permit/EP-2025-07877/) |
| Mar 21, 2025 | Alteration or repair | Convert (E) detached garage to ADU: (1) bedroom, (1) bathroom - 400 sqft panel upgrade to be by separate permit | $40,000 | [BP-2024-07928](https://nearbypermits.com/riverside/permit/BP-2024-07928/) |

## Zoning requests nearby

We don't list zoning cases for Riverside yet. Look them up on the city's Planning Commission page: https://riversideca.gov/cityclerk/boards-commissions/planning-commission

## More on this street

Other addresses on San Mateo Ave with permits, nearest house number first:

- [3927 San Mateo Ave](https://nearbypermits.com/riverside/address/3927-san-mateo-ave/): newest permit Apr 20, 2026

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Source: Riverside Building and Safety Division permit data (https://www.riversideca.gov/transparency/data/dataset/show/34). Checked 2026-10-11 18:57 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

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Both permits at this address: https://nearbypermits.com/riverside/address/3902-san-mateo-ave/