336 Marshall Dr
Walnut Creek 94598 · Unincorporated Contra Costa · Coordinates: 37.90648, -122.04266
Parcel & Assessor
- Lot size:
- 11,344 sq ft (0.26 ac)
- Assessor use:
- Single Family, 1 residence on 1 site, with or without
- Tax rate area:
- 98004
- Addresses on lot:
- 336 MARSHALL DR
Zoning & Land Use
R-10 — Single Family Residential (Unincorporated Contra Costa)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned R-10 (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotLikely eligible
Zoned R-10, a single-family residential zone.
- SB 9: split into two lotsLikely eligible
Zoned R-10, a single-family residential zone. The lot is 11,344 sq ft by the assessor, room for two lots of at least 1,200 sq ft, each at least 40% of the original.
Mapped Hazard Zones on This Lot
- CAL FIRE Fire Hazard Severity Zone
- Not in a State-mapped fire hazard severity zone
- FEMA National Flood Hazard Layer
- Zone X: minimal flood hazard (all of the lot) · FIRM panel 06013C0291F, effective June 16, 2009
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
Range: $1,223,000 – $1,655,000 · Status: Off market
HUD Small Area FMR (ZIP 94598) · FY 2026
Studio $2,850 · 1BR $3,180 · 2BR $3,880 · 3BR $4,960 · 4BR $5,880
Nearby Activity (½ mile radius, since —)
6 active or recent development projects (6 housing units across completed, permitted, and pipeline stages) and 0 total building permits recorded within ½ mile.
Developments Deserving Closer Investigation & Active Area Builders
- 2 new homes (Entitled)On this parcel
Active in "Entitled" for 6 yr (first record Nov 10, 2020) with no new permit activity recorded in 6 yr.
- New home (Issued)0.11 mi SE
Active in "Issued" for 21 mo (first record Feb 7, 2025) with no new permit activity recorded in 21 mo.
- New home (Entitled)0.18 mi E
Active in "Entitled" for 6.2 yr (first record Sep 2, 2020) with no new permit activity recorded in 6.2 yr.
- Convert Existing Attached Garage To Adu (Issued)0.21 mi SE
Active in "Issued" for 5.1 yr (first record Oct 11, 2021) with no new permit activity recorded in 5.1 yr.
Permit & Project History on This Parcel (0 permits, 3 grouped projects)
No building permits recorded on this parcel in our dataset.
State HCD Housing Element APR records on this parcel: 5 entries (report years 2020, 2021, 2022, 2023).