4021 Balboa St
San Francisco · Outer Richmond · San Francisco · Coordinates: 37.77529, -122.50201
Parcel & Assessor
- Lot size:
- —
- Assessor use:
- —
- Addresses on lot:
- 4021A BALBOA ST; 4021 BALBOA ST; 4023 BALBOA ST
Zoning & Land Use
NC-1 — NEIGHBORHOOD COMMERCIAL, CLUSTER (Mixed Use)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned NC-1 (mixed use): state law allows ADUs where homes are allowed. On a multifamily lot the state allowance is different: ADUs in non-living space of the building, plus up to eight detached ADUs.
- SB 9: two homes on the lotUnlikely
Zoned NC-1 (mixed use), not a single-family residential zone.
- SB 9: split into two lotsUnlikely
Zoned NC-1 (mixed use), not a single-family residential 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: minimal flood hazard (all of the lot) · FIRM panel 0602980094A, effective March 23, 2021
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
Range: $1,949,000 – $2,637,000 · Status: Off market
HUD Metro FMR (San Francisco, CA HUD Metro FMR Area) · FY 2026
Studio $2,485 · 1BR $2,977 · 2BR $3,604 · 3BR $4,604 · 4BR $4,772
Nearby Activity (½ mile radius, since October 2024)
15 active or recent development projects (16 housing units across completed, permitted, and pipeline stages) and 796 total building permits recorded within ½ mile.
- Adds housing (ADU)11 permits (12 units)
Developments Deserving Closer Investigation & Active Area Builders
- New home (Issued)230 ft NE
Active in "Issued" for 2.7 yr (first record Feb 26, 2024) with no new permit activity recorded in 2.7 yr.
- Accessory dwelling unit at 600 41st Ave (Issued)0.13 mi N
Active in "Issued" for 8.6 yr (first record Mar 23, 2018) with no new permit activity recorded in 5.2 yr.
- Accessory dwelling unit at 806 40th Ave (Applied)0.16 mi SE
Active in "Applied" for 4.4 yr (first record May 26, 2022) with no new permit activity recorded in 4.4 yr.
- New home at 830 41st Ave (Issued)0.16 mi S
Active in "Issued" for 5.3 yr (first record Jul 26, 2021) with no new permit activity recorded in 3.4 yr.
Permit & Project History on This Parcel (11 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 202601284679 | Fire alarm / sprinkler | complete | Iss. Jan 28, 2026 | $7,028 | installation of overhead fire sprinkler system. adding underground work. referencing fire permit#: 202401234428. |
| 202408148677 | Plan revision / deferred submittal | issued | Iss. Jan 16, 2025 | $1,000 | rear adu: rev to pa 201701318275: rotate 2 approved skylights and construct new 30-inch tall, 1-hour fire resistance rat… |
| 202401234428 | Fire alarm / sprinkler | complete | Iss. Jan 30, 2024 | $7,028 | installation of overhead fire sprinkler system. ref bldg pa# 202304216222 |
| M1232168 | Accessory dwelling unit (new or conversion) | issued |