Parcel Context · Public-Records Property BriefBlock/lot 6482/034
51 Royal Ln
San Francisco · Excelsior · San Francisco · Coordinates: 37.71291, -122.43774
Parcel & Assessor
- Lot size:
- —
- Assessor use:
- —
- Addresses on lot:
- 51A ROYAL LN; 51 ROYAL LN; 61 ROYAL LN
Zoning & Land Use
RH-1 — RESIDENTIAL- HOUSE, ONE FAMILY (Residential)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned RH-1 (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotLikely eligible
Zoned RH-1, a single-family residential zone.
- SB 9: split into two lotsLikely eligible
Zoned RH-1, a single-family residential zone. The lot is 6,491 sq ft on the parcel map, 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 0602980230A, effective March 23, 2021
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
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
ACS 2020–2024 Median Gross Rent (Excelsior):$2,291±$172 Source: ACS 2020–2024 5-year estimates. Geography: Excelsior.
ACS 2020–2024 Median Home Value (Excelsior):$1,182,000±$27,600 Source: ACS 2020–2024 5-year estimates. Geography: Excelsior.
Nearby Activity (½ mile radius, since October 2024)
20 active or recent development projects (21 housing units across completed, permitted, and pipeline stages) and 544 total building permits recorded within ½ mile.
- Adds housing (ADU)16 permits (17 units)
- Demolition2 permits
- Additions & renovations148 permits
- Building systems284 permits
Permit & Project History on This Parcel (4 permits, 2 grouped projects)
2 new homes at 61 Royal LnStage: Applied · 2 units · $600,000 declared valuation · Last record Jun 6, 2026
New home at 61 Royal LnStage: Expired / withdrawn · 1 units · $10,000 declared valuation · Last record May 16, 2017
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 202604139324 | Demolition | filed | App. Jun 6, 2026 | $15,000 | demolish 1-story, type 5, unpermitted rear stucture. |
| 202604139320 | Accessory dwelling unit (new or conversion) | filed | App. Jun 6, 2026 | $600,000 | erect 3-story, type 5b, single fmily residence with adu. |
| 201806010776 | Fire alarm / sprinkler | cancelled | App. Jun 1, 2018 | $123,500 | legalize rear unit per ordinance 43-14. proposed a conversion of the existing non-conforming storage building into a leg… |