3534 20th Ave
Sacramento 95820 · South Oak Park · City of Sacramento · Coordinates: 38.53426, -121.46847
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 $456,000 ($401,000–$511,000).
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 4,356 sq ft lot. Local precedent is active with 14 ADU permits within ¼ mile over the last 36 months.
Source: City of Sacramento zoning · CA Gov. Code 66314 & 65852.21
- ✓ 6 documented municipal building permits on file
On-parcel permit history is indexed through Feb 27, 2025, 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: 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)
- ! Delayed or open permit activity on this parcel
Plumbing / water heater / sewer (RES-2122262): Issued after 2 mo — slower than 90% of plumbing / water heater / sewer permits in City of Sacramento (median 0d, 90th pct 1d, n=18,112).
Source: City of Sacramento CDD, Issued Building Permits (Current Year) (review-time benchmark)
- ! 5 slow or stalled nearby projects within ½ mile
Closest lead: Franklin Blvd Mixed Use Bldg A and Site Work (0.46 mi NW, 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 (~$5,648/yr at $456,000)
Sale triggers reassessment to 1.00% base + ~0.14% voter debt (~$471/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:
- 4,356 sq ft (0.10 ac)
- Assessor use:
- Residential · Two Family · Duplex
- Tax rate area:
- 03019
- Addresses on lot:
- 3534 20TH AVE; 3534 20TH AVE UNIT A UNIT A; 3534 20TH AVE UNIT B UNIT B
Zoning & Land Use
R-1 — Single-Unit 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-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 4,356 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: $401,000 – $511,000 · Status: Off market
HUD Small Area FMR (ZIP 95820) · FY 2026
Studio $1,530 · 1BR $1,610 · 2BR $1,980 · 3BR $2,640 · 4BR $3,040
Developments Deserving Closer Investigation & Active Area Builders
- Franklin Blvd Mixed Use Bldg A and Site Work (In review)0.46 mi NW
In "In review" for 4.1 yr (since Sep 29, 2022), exceeding the 210d median and 627d 90th percentile for new multifamily / condos / mixed-use permits in City of Sacramento (n=199). High-impact scale (4 housing units, $590,212 declared valuation across 4 permits). current_status changed to "Plan Check Target" in snapshot Nov 1, 2026.
- Accessory dwelling unit at 3320 20th Ave (Issued)0.14 mi W
Active in "Issued" for 21 mo (first record Feb 18, 2025) with no new permit activity recorded in 14 mo. current_status changed to "Finaled" in snapshot Nov 1, 2026.
- Plumbing / water heater / sewer (RES-2122262) (Expired Permit)On this parcel
Issued after 2 mo — slower than 90% of plumbing / water heater / sewer permits in City of Sacramento (median 0d, 90th pct 1d, n=18,112).
- New duplex at 3821 35th St (In review)0.4 mi N
In "In review" for 15 mo (since Aug 20, 2025), exceeding the 184d median and 416d 75th percentile for new duplex / half-plex permits in City of Sacramento (n=115). current_status changed to "Verify" in snapshot Nov 1, 2026.
Entity-resolved builders & contractors in ½ mile: Liem General Construction (2 on parcel, 2 in ½ mi · Electrical / panel); Southport HVAC (1 on parcel, 1 in ½ mi · HVAC / heat pump); Jones Electric (1 on parcel, 1 in ½ mi · Electrical / panel); Plumbcorp (1 on parcel, 1 in ½ mi · Plumbing / water heater / sewer); Bhandal Construction (9 in ½ mi · Accessory dwelling unit (new or conversion)).
Permit & Project History on This Parcel (6 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| RES-2504031 | Plumbing / water heater / sewer | Finaled | Iss. Feb 27, 2025 | $2,865 | Change-out installation of Gas - 050 gallon to Gas - 050 gallon, located inside building, screening not required. |
| RES-2502252 | HVAC / heat pump | Finaled | Iss. Feb 3, 2025 | $3,565 | No Duct Work Permitted. Change-out Wall Furnace to Wall Furnace. The existing unit shall be removed. The new unit shall … |
| RES-2500571 | Electrical / panel | Finaled | Iss. Jan 9, 2025 | $3,000 | E-Permit: existing panel 100 Amps - Overhead service, new main panel 125 Amps, New Install weather head/masthead work. |
| RES-2222300 | Electrical / panel | Expired Permit | Iss. Oct 21, 2022 | $3,000 | AA: existing panel 200 Amps - Overhead service, new main panel 125 Amps, Replacement weather head/masthead work, main br… |