4100 21st St
Sacramento 95822 · Carleton Tract · City of Sacramento · Coordinates: 38.53723, -121.49064
Executive Verdict · Public-Records Synthesis
Zoned R-2 in City of Sacramento with likely ministerial ADU eligibility and zero mapped flood, fire, or fault hazard overlaps; benchmark value $451,000 ($397,000–$505,000).
Upsides & Opportunities
- ✓ Ministerial ADU / JADU pathway likely eligible
Zone R-2 allows residential use qualifying for ministerial ADU review under state law (9 ADU permits permitted within ¼ mile in 36 months).
Source: City of Sacramento zoning · CA Gov. Code 66314
- ✓ 2 documented municipal building permits on file
On-parcel permit history is indexed through Jan 30, 2020, 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: 2065 4-Plex Apartments (160 ft W, entitled). 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 (~$5,591/yr at $451,000)
Sale triggers reassessment to 1.00% base + ~0.14% voter debt (~$466/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:
- 7,405 sq ft (0.17 ac)
- Assessor use:
- Residential · Single Family · Subdivision
- Tax rate area:
- 03007
- Addresses on lot:
- 4100 21ST ST
Zoning & Land Use
R-2 — Duplex 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-2 (two-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotCan't tell
Zoned R-2 (two-family residential): we can't tell whether it counts as a single-family zone for SB 9. Duplex Dwelling Zone.
- SB 9: split into two lotsCan't tell
Zoned R-2 (two-family residential): we can't tell whether it counts as a single-family zone for SB 9. 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 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: $397,000 – $505,000 · Status: Off market
HUD Small Area FMR (ZIP 95822) · FY 2026
Studio $1,620 · 1BR $1,700 · 2BR $2,090 · 3BR $2,780 · 4BR $3,210
Developments Deserving Closer Investigation & Active Area Builders
- 2065 4-Plex Apartments (Entitled)160 ft W
In "Entitled" for 7.8 yr (since Jan 24, 2019), 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 across 0 permits).
- 2065 4plex (Entitled)210 ft NW
In "Entitled" for 3.7 yr (since Mar 1, 2023), 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, $480,000 declared valuation across 2 permits).
- 2091 15th Ave ADU (Entitled)230 ft N
In "Entitled" for 5.5 yr (since May 21, 2021), exceeding the 45d median and 184d 90th percentile for new single-family home permits in City of Sacramento (n=3,657).
- Americawest Executive Office (In review)0.4 mi E
In "In review" for 15 mo (since Aug 5, 2025), exceeding the 241d median and 334d 75th percentile for new commercial / non-residential building permits in City of Sacramento (n=150). High-impact scale ($1,036,934 declared valuation across 1 permit).
Entity-resolved builders & contractors in ½ mile: Domus Construction And Design (2 on parcel, 2 in ½ mi · Plan revision / deferred submittal); Sequoia Pacific Builders (29 in ½ mi · Demolition); Yancey (6 in ½ mi · Remodel / interior alteration); Tilton Pacific Construction (5 in ½ mi · New commercial / non-residential building); Christophers Construction Services (4 in ½ mi · Remodel / interior alteration).
Permit & Project History on This Parcel (2 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| RES-2001617 | Plan revision / deferred submittal | Complete | App. Jan 30, 2020 | — | revision to RES-1921158 change to porch footing detail |
| RES-1921158 | Roof replacement | Finaled | Iss. Nov 21, 2019 | $235,654 | Fire Repair of a 1320SF 3BR 2Bath SFR with attached 306SF Garage. Removing all interior finishes and replace with new in… |