# Building permits at 3 Heatherstone Ln, Marin County, CA One permit on record here. The newest, Sep 10, 2025: Permit, no description from the city. Within a quarter mile, the county has issued 13 more permits since May 1. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Sep 10, 2025 | Other | | $27,982 | [B43808](https://nearbypermits.com/marin-county/permit/B43808/) | ## Within ¼ mi since May 1, 2026 13 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 | |---|---|---|---|---|---|---| | Aug 26, 2026 | [385 Johnstone Dr](https://nearbypermits.com/marin-county/address/385-johnstone-dr/) | 770 ft S | Plumbing | Replace Plumbing Fixtures(s); | $9,280 | [B48078](https://nearbypermits.com/marin-county/permit/B48078/) | | Aug 23, 2026 | [386 Johnstone Dr](https://nearbypermits.com/marin-county/address/386-johnstone-dr/) | 800 ft S | Other | | $49,000 | [B48027](https://nearbypermits.com/marin-county/permit/B48027/) | | Jul 16, 2026 | [275 Johnstone Dr](https://nearbypermits.com/marin-county/address/275-johnstone-dr/) | 890 ft SE | Other | | $98,000 | [182126](https://nearbypermits.com/marin-county/permit/182126/) | | Jul 6, 2026 | [48 Millstone Ter](https://nearbypermits.com/marin-county/address/48-millstone-ter/) | 590 ft SW | Mechanical (HVAC) | Replace Mechanical Appliance; | $20,000 | [B47394](https://nearbypermits.com/marin-county/permit/B47394/) | | Jun 24, 2026 | [2749 Heatherstone Dr](https://nearbypermits.com/marin-county/address/2749-heatherstone-dr/) | 690 ft S | Other | | $44,361 | [B47272](https://nearbypermits.com/marin-county/permit/B47272/) | | Jun 10, 2026 | [2826 Las Gallinas Ave](https://nearbypermits.com/marin-county/address/2826-las-gallinas-ave/) | 840 ft SW | Other | | $60,000 | [B47098](https://nearbypermits.com/marin-county/permit/B47098/) | ### Farther (1,000 ft to ¼ mi), 7 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 2, 2026 | [3 Sandstone Ct](https://nearbypermits.com/marin-county/address/3-sandstone-ct/) | 0.20 mi SW | Other | | $188,536 | [182490](https://nearbypermits.com/marin-county/permit/182490/) | | Aug 18, 2026 | [345 Ironstone Ct](https://nearbypermits.com/marin-county/address/345-ironstone-ct/) | 0.21 mi S | Electrical | Service Upgrade, EV Charging Station; | $6,886 | [B47957](https://nearbypermits.com/marin-county/permit/B47957/) | | Jul 27, 2026 | [10 Sandstone Ct](https://nearbypermits.com/marin-county/address/10-sandstone-ct/) | 0.24 mi SW | Electrical | Service Upgrade; | $4,500 | [B47634](https://nearbypermits.com/marin-county/permit/B47634/) | | Jul 16, 2026 | [316 Blackstone Dr](https://nearbypermits.com/marin-county/address/316-blackstone-dr/) | 0.22 mi S | Alteration or repair | Non-structural Door/Window Replacement; | $4,460 | [B47506](https://nearbypermits.com/marin-county/permit/B47506/) | | Jun 10, 2026 | [355 Ironstone Ct](https://nearbypermits.com/marin-county/address/355-ironstone-ct/) | 0.22 mi SW | Plumbing | Replace Plumbing Fixtures(s); | $20,610 | [B47090](https://nearbypermits.com/marin-county/permit/B47090/) | | May 29, 2026 | [345 Ironstone Ct](https://nearbypermits.com/marin-county/address/345-ironstone-ct/) | 0.21 mi S | Electrical | Service Upgrade, EV Charging Station; | $4,800 | [B46962](https://nearbypermits.com/marin-county/permit/B46962/) | | May 6, 2026 | [316 Blackstone Dr](https://nearbypermits.com/marin-county/address/316-blackstone-dr/) | 0.22 mi S | Plumbing | Replace Plumbing Fixtures(s); | $3,000 | [B46685](https://nearbypermits.com/marin-county/permit/B46685/) | ## 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 Heatherstone Ln with permits, nearest house number first: - [5 Heatherstone Ln](https://nearbypermits.com/marin-county/address/5-heatherstone-ln/): newest permit Aug 7, 2025 --- 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 2026-10-14 20:23 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, the one permit at this address and 13 nearby: https://nearbypermits.com/marin-county/address/3-heatherstone-ln/