# Building permits at 1 Mt Darwin Ct, Marin County, CA One permit here in the last two years. The newest, Nov 19, 2024: Replace Mechanical Appliance. Within a quarter mile, the county has issued 11 more permits since May 1. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Nov 19, 2024 | Mechanical (HVAC) | Replace Mechanical Appliance; | $13,000 | [B40230](https://nearbypermits.com/marin-county/permit/B40230/) | ## Within ¼ mi since May 1, 2026 11 permits in the circle. From our copy of the county's data (last 24 months). ### Next door (under 250 ft), 1 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 8, 2026 | [6 Mt Darwin Ct](https://nearbypermits.com/marin-county/address/6-mt-darwin-ct/) | 190 ft N | Electrical | Service Upgrade; | $3,500 | [B48258](https://nearbypermits.com/marin-county/permit/B48258/) | ### This block (250 to 1,000 ft), 7 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 18, 2026 | [5 Mt Palomar Ct](https://nearbypermits.com/marin-county/address/5-mt-palomar-ct/) | 960 ft NW | Roofing | ReRoofing; | $18,315 | [B48395](https://nearbypermits.com/marin-county/permit/B48395/) | | Sep 2, 2026 | [1126 Idylberry Rd](https://nearbypermits.com/marin-county/address/1126-idylberry-rd/) | 640 ft NW | Plumbing | Replace Plumbing Fixtures(s); | $2,214 | [B48185](https://nearbypermits.com/marin-county/permit/B48185/) | | Aug 19, 2026 | [90 Mt Muir Ct](https://nearbypermits.com/marin-county/address/90-mt-muir-ct/) | 500 ft SW | Mechanical (HVAC) | New Ductwork, Mechanical Appliance; | $27,000 | [B47966](https://nearbypermits.com/marin-county/permit/B47966/) | | Jun 9, 2026 | [1130 Idylberry Rd](https://nearbypermits.com/marin-county/address/1130-idylberry-rd/) | 690 ft NW | Mechanical (HVAC) | Mechanical Appliance; | $11,500 | [B47085](https://nearbypermits.com/marin-county/permit/B47085/) | | Jun 1, 2026 | [86 Mt Muir Ct](https://nearbypermits.com/marin-county/address/86-mt-muir-ct/) | 540 ft SW | Alteration or repair | Stucco Replacement, Non-structural Door/Window Replacement; | $12,462 | [B46831](https://nearbypermits.com/marin-county/permit/B46831/) | | May 20, 2026 | [55 Mt Muir Ct](https://nearbypermits.com/marin-county/address/55-mt-muir-ct/) | 800 ft W | Other | | $100,000 | [B46850](https://nearbypermits.com/marin-county/permit/B46850/) | | May 18, 2026 | [86 Mt Muir Ct](https://nearbypermits.com/marin-county/address/86-mt-muir-ct/) | 540 ft SW | Alteration or repair | Non-structural Door/Window Replacement; | $12,462 | [B46834](https://nearbypermits.com/marin-county/permit/B46834/) | ### Farther (1,000 ft to ¼ mi), 3 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 3, 2026 | [130 Mt Lassen Dr](https://nearbypermits.com/marin-county/address/130-mt-lassen-dr/) | 0.24 mi NW | Alteration or repair | Siding Replacement; | $12,000 | [B48218](https://nearbypermits.com/marin-county/permit/B48218/) | | Jul 30, 2026 | [24 Mt Diablo Cir](https://nearbypermits.com/marin-county/address/24-mt-diablo-cir/) | 0.19 mi N | Electrical | New Circuits / Outlets, Service Upgrade; | $20,000 | [B47682](https://nearbypermits.com/marin-county/permit/B47682/) | | Jun 5, 2026 | [18 Jeannette Prandi Way](https://nearbypermits.com/marin-county/address/18-jeannette-prandi-way/) | 0.24 mi E | Mechanical (HVAC) | Replace Ductwork, Replace Mechanical Appliance; | $31,000 | [B46959](https://nearbypermits.com/marin-county/permit/B46959/) | ## More on this street Other addresses on Mt Darwin Ct with permits, nearest house number first: - [6 Mt Darwin Ct](https://nearbypermits.com/marin-county/address/6-mt-darwin-ct/): newest permit Sep 8, 2026 - [17 Mt Darwin Ct](https://nearbypermits.com/marin-county/address/17-mt-darwin-ct/): newest permit Mar 25, 2026 --- 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 2026-10-08 05:47 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 11 nearby: https://nearbypermits.com/marin-county/address/1-mt-darwin-ct/