521 Hayes Ave
Sacramento 95838 · West Del Paso Heights · City of Sacramento · Coordinates: 38.63103, -121.45453
Executive Verdict · Public-Records Synthesis
Zoned R-1A-SPD in City of Sacramento with likely ministerial ADU eligibility and zero mapped flood, fire, or fault hazard overlaps; benchmark value $382,000 ($336,000–$428,000).
Upsides & Opportunities
- ✓ Ministerial ADU / JADU pathway likely eligible
Zone R-1A-SPD allows residential use qualifying for ministerial ADU review under state law (13 ADU permits permitted within ¼ mile in 36 months).
Source: City of Sacramento zoning · CA Gov. Code 66314
- ✓ 1 documented municipal building permit on file
On-parcel permit history is indexed through May 27, 2016, letting you verify roof, HVAC, electrical, or structural work against seller disclosures.
Source: City of Sacramento CDD, Issued Building Permits (Current Year) (parcel APN)
Watchouts & Due Diligence
- ! Mapped flood awareness zone (Zone X: reduced flood risk due to levee)
all of the lot of the parcel intersects Zone X: reduced flood risk due to levee. Outside mandatory federal SFHA insurance rules, but check local drainage and finished-floor requirements.
Source: FEMA National Flood Hazard Layer (parcel polygon)
- ! 6 slow or stalled nearby projects within ½ mile
Closest lead: New home at 441 Kesner Ave (0.23 mi N, in review). Inspect timeline history before assuming near-term completion.
Source: City of Sacramento CDD, Issued Building Permits (Current Year) · HCD APR (½-mile radius)
- ! Year 1 Prop 13 tax reset (~$4,805/yr at $382,000)
Sale triggers reassessment to 1.00% base + ~0.14% voter debt (~$400/mo). Confirm exact Mello-Roos / CFD special assessments on the county tax bill.
Source: CA Const. Art. XIIIA (Prop 13) · County Tax Collector
Parcel & Assessor
- Lot size:
- 3,404 sq ft (0.08 ac)
- Assessor use:
- Residential · Single Family · Subdivision
- Tax rate area:
- 03184
- Addresses on lot:
- 521 HAYES AVE
Zoning & Land Use
R-1A-SPD — Single-Unit or Duplex Dwelling Zone (R)
2040 General Plan: Neighborhood (FAR up to 1)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned R-1A (two-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotCan't tell
Zoned R-1A (two-family residential): we can't tell whether it counts as a single-family zone for SB 9. Single-Unit or Duplex Dwelling Zone.
- SB 9: split into two lotsCan't tell
Zoned R-1A (two-family residential): we can't tell whether it counts as a single-family zone for SB 9. Single-Unit or Duplex Dwelling Zone.
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: reduced flood risk due to levee (all of the lot) · FIRM panel 06067C0064J, effective June 16, 2015
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
Range: $336,000 – $428,000 · Status: Off market
HUD Small Area FMR (ZIP 95838) · FY 2026
Studio $1,610 · 1BR $1,690 · 2BR $2,080 · 3BR $2,770 · 4BR $3,190
Developments Deserving Closer Investigation & Active Area Builders
- New home at 441 Kesner Ave (In review)0.23 mi N
In "In review" for 6 mo (since May 4, 2026), exceeding the 45d median and 184d 90th percentile for new single-family home permits in City of Sacramento (n=3,657). current_status changed to "Finaled" in snapshot Nov 1, 2026.
- Accessory dwelling unit at 3333 Taylor St (In review)0.26 mi S
In "In review" for 5 mo (since Jun 29, 2026), exceeding the 45d median and 85d 75th percentile for new single-family home permits in City of Sacramento (n=3,657). valuation changed to "221828.1" in snapshot Nov 1, 2026.
- Accessory dwelling unit at 616 S Ave (Entitled)0.17 mi NE
In "Entitled" for 4 yr (since Nov 9, 2022), exceeding the 45d median and 184d 90th percentile for new single-family home permits in City of Sacramento (n=3,657).
- 505 Morey Ave TPM and new SFRs (Entitled)0.27 mi N
In "Entitled" for 5 yr (since Nov 18, 2021), exceeding the 184d median and 575d 90th percentile for new duplex / half-plex permits in City of Sacramento (n=115).
Entity-resolved builders & contractors in ½ mile: Del Paso Homes (1 on parcel, 87 in ½ mi · New single-family home); Cuttle Construction (90 in ½ mi · New single-family home); Bullard (20 in ½ mi · Addition (adds square footage)); Rpm Development And Engineering (8 in ½ mi · Accessory dwelling unit (new or conversion)); Clark Wagaman Designs (5 in ½ mi · Addition (adds square footage)).
Permit & Project History on This Parcel (1 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| RES-1607831 | New single-family home | Expired Permit | Iss. May 27, 2016 | $28,375 | COMMENCE FINALS FOR EXPIRED PERMIT RES-0711471 NSFR_2034, 2STORY, 1ST FLOOR 834SF , 2ND FLOOR 1200SF GARAGE 414SF AND PA… |