Nearby Permits
Map of 13 permits within a quarter mile of 442 Blackstone DrElectrical, 2797 Las Gallinas Ave, Oct 2, 2026Roofing, 5 Unionstone Ln, Sep 28, 2026Plumbing, 2661 Las Gallinas Ave, Sep 23, 2026Other, 3 Sandstone Ct, Sep 2, 2026Mechanical (HVAC), 15 Unionstone Dr, Aug 25, 2026Electrical, 345 Ironstone Ct, Aug 18, 2026Electrical, 10 Sandstone Ct, Jul 27, 2026Mechanical (HVAC), 3 Unionstone Ln, Jun 18, 2026Plumbing, 9 Valleystone Dr, Jun 17, 2026Other, 2826 Las Gallinas Ave, Jun 10, 2026Plumbing, 355 Ironstone Ct, Jun 10, 2026Electrical, 345 Ironstone Ct, May 29, 2026Plumbing, 45 Rhinestone Ter, May 18, 2026660 ft Map preview
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442 Blackstone Dr

Marin County, CA 94903

At this address
2 permits on record. Newest issued Dec 22, 2025: Replace Mechanical Appliance
Within ¼ mile
13 more permits issued since May 1.
MayJunJulAugSepOct
Within
Since
Here2 permits · 442 Blackstone Dr
  1. Replace Mechanical Appliance
    Mechanical (HVAC)
    Dec 22, 2025$5,000
  2. Replace Plumbing Fixtures(s)
    Plumbing
    Jun 30, 2023$1,500
Sort
Next doorunder 250 ft · 1 permit
  1. Replace Mechanical Appliance
    15 Unionstone Dr · 180 ft NE · Mechanical (HVAC)
    Aug 25$8,617
This block250 to 1,000 ft · 8 permits
  1. New Circuits / Outlets, Service Upgrade
    2797 Las Gallinas Ave · 550 ft NE · Electrical
    Oct 2$9,823
  2. ReRoofing
    5 Unionstone Ln · 720 ft N · Roofing
    Sep 28$40,000
  3. Replace Plumbing Fixtures(s)
    2661 Las Gallinas Ave · 490 ft SE · Plumbing
    Sep 23$3,200
  4. Permit, no description from the city
    3 Sandstone Ct · 960 ft E · Other
    Sep 2$188,536
  5. Service Upgrade
    10 Sandstone Ct · 760 ft E · Electrical
    Jul 27$4,500
  6. Replace Mechanical Appliance
    3 Unionstone Ln · 830 ft N · Mechanical (HVAC)
    Jun 18$19,000
  7. Replace Plumbing Fixtures(s)
    9 Valleystone Dr · 800 ft W · Plumbing
    Jun 17$17,000
  8. Replace Plumbing Fixtures(s)
    45 Rhinestone Ter · 850 ft N · Plumbing
    May 18$2,500
Within a quarter mile1,000 ft to ¼ mi · 4 permits
  1. Service Upgrade, EV Charging Station
    345 Ironstone Ct · 0.23 mi E · Electrical
    Aug 18$6,886
  2. Permit, no description from the city
    2826 Las Gallinas Ave · 0.21 mi NE · Other
    Jun 10$60,000
  3. Replace Plumbing Fixtures(s)
    355 Ironstone Ct · 0.21 mi E · Plumbing
    Jun 10$20,610
  4. Service Upgrade, EV Charging Station
    345 Ironstone Ct · 0.23 mi E · Electrical
    May 29$4,800
Zoning requests nearbynot published by Marin County

We don't list zoning cases for Marin County yet. Look them up on the county's Planning Commission page.

More on this streetBlackstone Dr · 10 nearest addresses with permits

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Marin County Community Development Agency updated its data Oct 17, 2026. We checked it Oct 17, 13:07 UTC. See the county's official records (County of Marin, CA, ODbL 1.0).

Contains information from Building Permit (County of Marin, CA), which is made available here under the Open Database License (ODbL).

At this address: every permit the city holds. Nearby: permits from the last two years, from our copy of the city's data.

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