424 Lyon St

APN: 1199018 Address: 422 LYON ST Block / Lot: 1199 / 018 Land Use: Multi-Family Residential Lot Area: 2809.0 Zoning District: RH-3 Zoning Name: RESIDENTIAL- HOUSE, THREE FAMILY Zoning General Type: Residential

Owner: Unknown Assessed Land Value: 329343.0 Assessed Improvement Value: 279934.0 Total Assessed Value: 609277.0

Last Sale Date: 1994-12-20 Last Sale Price: Unknown

Summary: complete: 13, expired: 3, filed: 2, issued: 1 Recent Permits: 2025-04-18 | 202504184715 | complete (2025-09-02) | Issued: 2025-04-18 | otc alterations permit | 422 Lyon St | submitting as builts for pa 2023-0511-7551. documenting (1) low frequency horn installed in a bedroom that was built after the intial drawi… 2025-04-18 | 202504184715 | complete (2025-09-02) | Issued: 2025-04-18 | otc alterations permit | 426 Lyon St | submitting as builts for pa 2023-0511-7551. documenting (1) low frequency horn installed in a bedroom that was built after the intial drawi… 2023-07-18 | 202307182375 | issued (2023-07-27) | Issued: 2023-07-27 | otc alterations permit | 422 Lyon St | partial removal of e load bearing wall at basement (11 ft opening) to accomodate reloacated electrical service meters. new beam with post s… 2023-05-11 | 202305117551 | complete (2023-11-21) | Issued: 2023-05-11 | otc alterations permit | 422 Lyon St | replacing the fire alarm system on a one-to-one bases." voluntary installing heat detectors in the unsprinklerered area of the garage / lau… 2023-05-11 | 202305117551 | complete (2023-11-21) | Issued: 2023-05-11 | otc alterations permit | 426 Lyon St | replacing the fire alarm system on a one-to-one bases." voluntary installing heat detectors in the unsprinklerered area of the garage / lau… 2023-05-01 | 202305016776 | complete (2023-08-03) | Issued: 2023-05-04 | otc alterations permit | 422 Lyon St | 2/f unit 2: relocate entry door for unit 2 closer to front entry. expand media room into hallway for new alcove. no change to unit 1 or 2 e… 2020-10-17 | 202010176760 | complete (2021-02-16) | Issued: 2020-11-10 | otc alterations permit | 424 Lyon St | revision to pa 201709158388. soft story upgrade. 2020-10-17 | 202010176760 | complete (2021-02-16) | Issued: 2020-11-10 | otc alterations permit | 422 Lyon St | revision to pa 201709158388. soft story upgrade.

2020-007675PRJ | On Hold | 422 LYON ST 94117 | ADU c4 local program

Analysis Neighborhood: Lone Mountain/USF Supervisor District: 5 Planning District: Western Addition (5) Police District: PARK (Company F)

Police Incidents in Police District: Unknown Top Incident Categories: Unknown 311 Cases in Supervisor District: Unknown Top 311 Categories: Unknown

This report identifies parcel 1199018 as 422 LYON ST 94117, located in the Lone Mountain/USF area, Supervisor District 5, Planning District Western Addition (5), and SFPD PARK District (Company F). Public assessor roll attributes available for this parcel indicate land use of Multi-Family Residential, a reported lot area of 2809.0, and assessed land and improvement values from the most recent assessor roll year. Permit activity is summarized from DBI permit records when parcel block and lot can be matched, and planning entitlement activity is retrieved from the San Francisco Planning Accela case feed when available. Neighborhood signals are summarized at the district level for context and are not parcel specific.