3900 4th Ave
Sacramento 95817 · North Oak Park · City of Sacramento · Coordinates: 38.54868, -121.46250
Executive Verdict · Public-Records Synthesis
Zoned R-1 in City of Sacramento with likely ADU & SB 9 infill eligibility and zero mapped flood, fire, or fault hazard overlaps; benchmark value $473,000 ($416,000–$530,000).
Upsides & Opportunities
- ✓ ADU & SB 9 infill pathways screen as likely eligible
Zoned R-1 supports ministerial ADU/JADU review plus SB 9 both two-unit development and ministerial urban lot split on a 4,792 sq ft lot. Local precedent is active with 17 ADU permits within ¼ mile over the last 36 months.
Source: City of Sacramento zoning · CA Gov. Code 66314 & 65852.21
- ✓ Documented permitted upgrades (+$8,000 contributory est.)
Public building records show issued construction/renovation work on this parcel (4 total permits, latest Sep 18, 2026).
Source: City of Sacramento CDD, Issued Building Permits (Current Year) (parcel APN)
Watchouts & Due Diligence
- ! Mapped flood awareness zone (Zone X: minimal flood hazard)
all of the lot of the parcel intersects Zone X: minimal flood hazard. Outside mandatory federal SFHA insurance rules, but check local drainage and finished-floor requirements.
Source: FEMA National Flood Hazard Layer (parcel polygon)
- ! 4 slow or stalled nearby projects within ½ mile
Closest lead: Office Conversion (0.38 mi E, issued). 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 (~$5,842/yr at $473,000)
Sale triggers reassessment to 1.00% base + ~0.14% voter debt (~$487/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:
- 4,792 sq ft (0.11 ac)
- Assessor use:
- Residential · Single Family · Subdivision
- Tax rate area:
- 03002
- Addresses on lot:
- 3900 4TH AVE
Zoning & Land Use
R-1 — Single-Unit Dwelling Zone (R)
2040 General Plan: Neighborhood (FAR up to 2)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned R-1 (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotLikely eligible
Zoned R-1, a single-family residential zone.
- SB 9: split into two lotsLikely eligible
Zoned R-1, a single-family residential zone. The lot is 4,792 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 06067C0190H, effective August 16, 2012
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
Range: $416,000 – $530,000 · Status: Off market
HUD Small Area FMR (ZIP 95817) · FY 2026
Studio $1,580 · 1BR $1,660 · 2BR $2,040 · 3BR $2,720 · 4BR $3,130
Developments Deserving Closer Investigation & Active Area Builders
- Office Conversion (Issued)0.38 mi E
Active in "Issued" for 2.8 yr (first record Jan 25, 2024) with no new permit activity recorded in 22 mo. High-impact scale (38 housing units, $3,500,000 declared valuation across 6 permits).
- Accessory dwelling unit at 3943 Colonial Way (Issued)0.44 mi N
Active in "Issued" for 2.1 yr (first record Oct 1, 2024) with no new permit activity recorded in 17 mo. current_status changed to "Finaled" in snapshot Nov 1, 2026.
- Accessory dwelling unit at 3200 40th St (Approved)0.24 mi S
In "Approved" for 4 mo (since Jul 15, 2026), exceeding the 45d median and 85d 75th percentile for new single-family home permits in City of Sacramento (n=3,657). issued_date changed to "2026-09-29" in snapshot Nov 1, 2026.
- New home at 3900 4th Ave (Finaled / completed)On this parcel
High-impact scale (1 housing unit, 1 deed-restricted affordable, $268,169 declared valuation across 2 permits).
Entity-resolved builders & contractors in ½ mile: Habitat For Humanity Of Greater Sacramento (2 on parcel, 10 in ½ mi · New single-family home); Haven Energy Services (2 on parcel, 2 in ½ mi · Plan revision / deferred submittal); Veritas Design Build (13 in ½ mi · New single-family home); Anchored Tiny Homes (9 in ½ mi · Accessory dwelling unit (new or conversion)); Indie Capital Constructors (8 in ½ mi · New single-family home).
Permit & Project History on This Parcel (4 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| RES-2620850 | Plan revision / deferred submittal | Complete | App. Sep 18, 2026 | — | REVISION TO RES-2618486: Revision: 200A CSR breaker will be installed in aGate, aGate will be connected to MSP with lugs… |
| RES-2618486 | Solar / battery storage | Issued | Iss. Aug 26, 2026 | $5,000 | 0kw Solar PV System, 15 kw PV Storage System Size and 0gal Solar WH System (water heater installed null). All supply sid… |
| RES-2405483 | Plan revision / deferred submittal | Complete | App. Mar 13, 2024 | — | EPC - REVISION TO RES-2322453- An extra sprinkler head was added in the living room and the water line location was adju… |
| RES-2322453 | New single-family home | Finaled |