5531 21st Ave
Sacramento 95820 · Colonial Heights · City of Sacramento · Coordinates: 38.53242, -121.44032
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 $467,000 ($411,000–$523,000).
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 8,276 sq ft lot. Local precedent is active with 11 ADU permits within ¼ mile over the last 36 months.
Source: City of Sacramento zoning · CA Gov. Code 66314 & 65852.21
- ✓ Documented permitted upgrades (+$25,000 contributory est.)
Public building records show issued construction/renovation work on this parcel (2 total permits, latest Apr 9, 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)
- ! 6 slow or stalled nearby projects within ½ mile
Closest lead: 4995 Stockton Blvd Demo and 200 unit multifamily ministerial infill housing (0.3 mi SW, 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 (~$5,774/yr at $467,000)
Sale triggers reassessment to 1.00% base + ~0.14% voter debt (~$481/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:
- 8,276 sq ft (0.19 ac)
- Assessor use:
- Residential · Single Family · Subdivision
- Tax rate area:
- 03016
- Addresses on lot:
- 5531 21ST 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 8,276 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: $411,000 – $523,000 · 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
- 4995 Stockton Blvd Demo and 200 unit multifamily ministerial infill housing (Entitled)0.3 mi SW
In "Entitled" for 5.6 yr (since Apr 12, 2021), exceeding the 210d median and 627d 90th percentile for new multifamily / condos / mixed-use permits in City of Sacramento (n=199). High-impact scale (161 housing units across 0 permits).
- 4995 Stockton Blvd Demo and 200 unit multifamily ministerial infill housing (Entitled)0.3 mi SW
In "Entitled" for 5.6 yr (since Apr 12, 2021), exceeding the 210d median and 627d 90th percentile for new multifamily / condos / mixed-use permits in City of Sacramento (n=199). High-impact scale (39 housing units across 0 permits).
- Accessory dwelling unit at 5736 19th Ave (Issued)0.14 mi N
Active in "Issued" for 2.4 yr (first record Jun 7, 2024) with no new permit activity recorded in 12 mo. work_desc changed to "EPC - Shelf Ready ADU with commercial meter setup, 2 bed, 1 bath 747 sq ft 44 sq ft porch, 9 sq ft utility closet, and PV Solar. Carbon monoxide & Smoke alarms required. Reference CRC sections R315 & R314. Water conserving fixtures are required to be installed throughout this residence per SB 407 (Note: Residences built after January 1, 1994 are exempt). “Any new landscaping done on this property is to be in compliance with the City’s Water Efficient Landscape Ordinance 15.92.” revision RES-2623879 revised PV sheets PV-1.0 to PV-6.0 and spec sheets; see change letter." in snapshot Nov 1, 2026.
- Accessory dwelling unit at 4110 52nd St (Issued)0.43 mi NW
Active in "Issued" for 2.6 yr (first record Apr 23, 2024) with no new permit activity recorded in 2.3 yr. current_status changed to "Expired Permit" in snapshot Nov 1, 2026.
Permit & Project History on This Parcel (2 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| RES-2606722 | Addition (adds square footage) | Finaled | Iss. Apr 9, 2026 | $13,170 | Attached non insulated patio cover with 2 fans. To be 374 sqf. All work subject to field inspection. Carbon monoxide & S… |
| RES-2320963 | Electrical / panel | Finaled | Iss. Oct 2, 2023 | $4,000 | E-Permit: existing panel 100 Amps - Overhead service, new main panel 200 Amps, Replacement weather head/masthead work, m… |