420 Muller Rd
Walnut Creek 94598 · Walnut Creek · Coordinates: 37.90513, -122.03941
Parcel & Assessor
- Lot size:
- 18,561 sq ft (0.43 ac)
- Assessor use:
- Single Family, 1 residence on 1 site, with or without
- Tax rate area:
- 09001
- Addresses on lot:
- 420 MULLER RD
Zoning & Land Use
No published city zoning district at parcel centroid.
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADUCan't tell
We don't have a zoning map for Walnut Creek.
- SB 9: two homes on the lotCan't tell
We don't have a zoning map for Walnut Creek.
- SB 9: split into two lotsCan't tell
We don't have a zoning map for Walnut Creek.
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 06013C0293G, effective March 21, 2017
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
Range: $1,269,000 – $1,717,000 · 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
- Convert Existing Attached Garage To Adu (Issued)On this parcel
Active in "Issued" for 5.1 yr (first record Oct 11, 2021) with no new permit activity recorded in 5.1 yr.
- New home (Entitled)140 ft N
Active in "Entitled" for 6.2 yr (first record Sep 2, 2020) with no new permit activity recorded in 6.2 yr.
- New home (Issued)0.12 mi W
Active in "Issued" for 21 mo (first record Feb 7, 2025) with no new permit activity recorded in 21 mo.
- 2 new homes (Entitled)0.2 mi NW
Active in "Entitled" for 6 yr (first record Nov 10, 2020) with no new permit activity recorded in 6 yr.
Permit & Project History on This Parcel (0 permits, 1 grouped projects)
No building permits recorded on this parcel in our dataset.
State HCD Housing Element APR records on this parcel: 1 entry (report years 2021).