# Building permits at 49 Unionstone Dr, Marin County, CA Two permits on record here. The newest, Nov 12, 2024: Service Upgrade. Within a quarter mile, the county has issued 9 more permits since May 1. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Nov 12, 2024 | Electrical | Service Upgrade; | $6,500 | [B40152](https://nearbypermits.com/marin-county/permit/B40152/) | | Nov 16, 2020 | Roofing | ReRoofing; | $18,000 | [B24182](https://nearbypermits.com/marin-county/permit/B24182/) | ## Within ¼ mi since May 1, 2026 9 permits in the circle. From our copy of the county's data (last 24 months). ### This block (250 to 1,000 ft), 6 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Oct 2, 2026 | [2797 Las Gallinas Ave](https://nearbypermits.com/marin-county/address/2797-las-gallinas-ave/) | 900 ft E | Electrical | New Circuits / Outlets, Service Upgrade; | $9,823 | [B48627](https://nearbypermits.com/marin-county/permit/B48627/) | | Sep 28, 2026 | [5 Unionstone Ln](https://nearbypermits.com/marin-county/address/5-unionstone-ln/) | 460 ft NE | Roofing | ReRoofing; | $40,000 | [B48513](https://nearbypermits.com/marin-county/permit/B48513/) | | Aug 25, 2026 | [15 Unionstone Dr](https://nearbypermits.com/marin-county/address/15-unionstone-dr/) | 670 ft E | Mechanical (HVAC) | Replace Mechanical Appliance; | $8,617 | [B48059](https://nearbypermits.com/marin-county/permit/B48059/) | | Jun 18, 2026 | [3 Unionstone Ln](https://nearbypermits.com/marin-county/address/3-unionstone-ln/) | 570 ft NE | Mechanical (HVAC) | Replace Mechanical Appliance; | $19,000 | [B47215](https://nearbypermits.com/marin-county/permit/B47215/) | | Jun 17, 2026 | [9 Valleystone Dr](https://nearbypermits.com/marin-county/address/9-valleystone-dr/) | 490 ft SW | Plumbing | Replace Plumbing Fixtures(s); | $17,000 | [B47202](https://nearbypermits.com/marin-county/permit/B47202/) | | May 18, 2026 | [45 Rhinestone Ter](https://nearbypermits.com/marin-county/address/45-rhinestone-ter/) | 880 ft NE | Plumbing | Replace Plumbing Fixtures(s); | $2,500 | [B46842](https://nearbypermits.com/marin-county/permit/B46842/) | ### Farther (1,000 ft to ¼ mi), 3 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 23, 2026 | [2661 Las Gallinas Ave](https://nearbypermits.com/marin-county/address/2661-las-gallinas-ave/) | 0.20 mi SE | Plumbing | Replace Plumbing Fixtures(s); | $3,200 | [B48461](https://nearbypermits.com/marin-county/permit/B48461/) | | Jul 27, 2026 | [10 Sandstone Ct](https://nearbypermits.com/marin-county/address/10-sandstone-ct/) | 0.23 mi E | Electrical | Service Upgrade; | $4,500 | [B47634](https://nearbypermits.com/marin-county/permit/B47634/) | | Jun 4, 2026 | [626 Blackstone Dr](https://nearbypermits.com/marin-county/address/626-blackstone-dr/) | 0.24 mi NW | Other | | $100,000 | [181820](https://nearbypermits.com/marin-county/permit/181820/) | ## Zoning requests nearby We don't list zoning cases for Marin County yet. Look them up on the county's Planning Commission page: https://www.marincounty.gov/departments/cda/planning/boards-commissions-and-public-hearings/about-planning-commission ## More on this street Other addresses on Unionstone Dr with permits, nearest house number first: - [15 Unionstone Dr](https://nearbypermits.com/marin-county/address/15-unionstone-dr/): newest permit Aug 25, 2026 - [8 Unionstone Dr](https://nearbypermits.com/marin-county/address/8-unionstone-dr/): newest permit Dec 4, 2024 --- Source: Marin County Community Development Agency permit data (https://data.marincounty.gov/d/mkbn-caye), County of Marin, CA, ODbL 1.0 (https://opendatacommons.org/licenses/odbl/1-0/). Checked 2026-10-12 11:34 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ Contains information from Building Permit (County of Marin, CA), which is made available here under the Open Database License (ODbL). Database: https://data.marincounty.gov/d/mkbn-caye License: https://opendatacommons.org/licenses/odbl/1-0/ Map, both permits at this address and 9 nearby: https://nearbypermits.com/marin-county/address/49-unionstone-dr/