28299 Sparrow Rd
Hayward 94545 · Hayward · Coordinates: 37.62019, -122.08492
Parcel & Assessor
- Lot size:
- 5,944 sq ft (0.14 ac)
- Assessor use:
- Single family residential homes used as such
- Tax rate area:
- 25
- Addresses on lot:
- 28297 SPARROW RD; 28299 SPARROW RD
Zoning & Land Use
RLB6 — Low Density Residential - Min. Lot Size - 6,000 Sq Ft (Hayward)
RLB6 — Low Density Residential - Min. Lot Size - 6,000 Sq Ft (Hayward)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned RLB6 (single-family residential): state law allows ADUs where homes are allowed. We read RLB6 from the zoning code's name; we haven't checked it against Hayward's code text. The parcel point also falls in RLB6.
- SB 9: two homes on the lotLikely eligible
Zoned RLB6, a single-family residential zone. We read RLB6 from the zoning code's name; we haven't checked it against Hayward's code text. The parcel point also falls in RLB6.
- SB 9: split into two lotsLikely eligible
Zoned RLB6, a single-family residential zone. We read RLB6 from the zoning code's name; we haven't checked it against Hayward's code text. The parcel point also falls in RLB6. The lot is 5,944 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 06001C0427G, 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: $743,000 – $1,005,000 · Status: Off market
HUD Small Area FMR (ZIP 94545) · FY 2026
Studio $2,250 · 1BR $2,510 · 2BR $3,060 · 3BR $3,910 · 4BR $4,640
Nearby Activity (½ mile radius, since —)
2 active or recent development projects (2 housing units across completed, permitted, and pipeline stages) and 0 total building permits recorded within ½ mile.
Developments Deserving Closer Investigation & Active Area Builders
- New home (Issued)On this parcel
Active in "Issued" for 3.8 yr (first record Jan 25, 2023) with no new permit activity recorded in 3.8 yr.
- New home (Issued)0.14 mi E
Active in "Issued" for 14 mo (first record Aug 29, 2025) with no new permit activity recorded in 14 mo.
- 1892 Egret Ln ADU (Issued)0.19 mi E
Active in "Issued" for 4.2 yr (first record Aug 30, 2022) with no new permit activity recorded in 4.2 yr.
- 27775 Miami Ave ADU (Issued)0.42 mi N
Active in "Issued" for 4 yr (first record Nov 7, 2022) with no new permit activity recorded in 4 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 2023).