579 Folsom Ave
Hayward 94544 · Hayward · Coordinates: 37.62681, -122.06285
Parcel & Assessor
- Lot size:
- 12,523 sq ft (0.29 ac)
- Assessor use:
- Two, three or four single family homes
- Tax rate area:
- 25
- Addresses on lot:
- 579 FOLSOM AVE; 581 FOLSOM AVE; 583 FOLSOM AVE
Zoning & Land Use
RL — Low Density Residential - Min. Lot Size - 5,000 Sq Ft (Hayward)
RL — Low Density Residential - Min. Lot Size - 5,000 Sq Ft (Hayward)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned RL (single-family residential): state law allows ADUs where homes are allowed. We read RL from the zoning code's name; we haven't checked it against Hayward's code text. The parcel point also falls in RL.
- SB 9: two homes on the lotLikely eligible
Zoned RL, a single-family residential zone. We read RL from the zoning code's name; we haven't checked it against Hayward's code text. The parcel point also falls in RL.
- SB 9: split into two lotsLikely eligible
Zoned RL, a single-family residential zone. We read RL from the zoning code's name; we haven't checked it against Hayward's code text. The parcel point also falls in RL. The lot is 12,523 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 06001C0289G, effective August 3, 2009
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
Range: $723,000 – $979,000 · Status: Off market
HUD Small Area FMR (ZIP 94544) · FY 2026
Studio $2,100 · 1BR $2,330 · 2BR $2,850 · 3BR $3,640 · 4BR $4,320
Nearby Activity (½ mile radius, since —)
10 active or recent development projects (10 housing units across completed, permitted, and pipeline stages) and 0 total building permits recorded within ½ mile.
Developments Deserving Closer Investigation & Active Area Builders
- Harvey Avenue (Tract 8442) (Entitled)0.38 mi W
Active in "Entitled" for 7 yr (first record Oct 29, 2019) with no new permit activity recorded in 7 yr. High-impact scale (17 housing units across 0 permits).
- New home (Issued)360 ft NE
Active in "Issued" for 20 mo (first record Mar 5, 2025) with no new permit activity recorded in 20 mo.
- Addition - 878 Folsom Avenue (Entitled)0.17 mi SW
Active in "Entitled" for 20 mo (first record Mar 4, 2025) with no new permit activity recorded in 20 mo.
- New home (Issued)0.23 mi SW
Active in "Issued" for 3.7 yr (first record Feb 15, 2023) with no new permit activity recorded in 3.7 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: 2 entries (report years 2024, 2025).