4035 20Th St

APN: 3604085 Address: 4035 20TH ST Block / Lot: 3604 / 085 Land Use: Single Family Residential Lot Area: 3140.0 Zoning District: RH-1 Zoning Name: RESIDENTIAL- HOUSE, ONE FAMILY Zoning General Type: Residential

Owner: Unknown Assessed Land Value: 541108.0 Assessed Improvement Value: 1085829.0 Total Assessed Value: 1626937.0

Last Sale Date: 1990-03-15 Last Sale Price: Unknown

Summary: complete: 5, expired: 3, issued: 1 Recent Permits: 2025-06-05 | 202506058072 | complete (2025-12-09) | Issued: 2025-06-06 | otc alterations permit | 4035 20th St | revision to 202505015600: replace waterproofing and plaster in kind on 250 sf of north and east facade. 2025-05-01 | 202505015600 | complete (2025-12-09) | Issued: 2025-05-01 | otc alterations permit | 4035 20th St | replace 11 windows & 1 french door w/ new aluminum clad wood windows & doors 2025-04-30 | 202504305505 | complete (2025-11-26) | Issued: 2025-04-30 | otc alterations permit | 4035 20th St | level 2: kitchen and bathroom remodel. replace flooring throughout. replace tile at patio. level 3: primary bathroom remodel. replace floor… 2018-06-07 | 201806071231 | complete (2018-11-15) | Issued: 2018-06-07 | otc alterations permit | 4035 20th St | install elevator in existing shaft in private residence per ansi/asme 17.1-2013. ref # 8911598. install per manufacturer's installation ins… 2003-11-04 | 200311049332 | issued (2003-11-04) | Issued: 2003-11-04 | otc alterations permit | 4035 20th St | new tile on 1 bathroom,10 sq.ft. of stucco repair 1989-06-30 | 8911598 | complete (1989-08-04) | Issued: 1989-08-03 | additions alterations or repairs | 4035 20th St | renew expired permit application number 8405463 1987-08-18 | 8711771 | expired (1988-02-08) | Issued: 1987-10-08 | additions alterations or repairs | 4035 20th St | extend #8609411 & 8405463 1986-08-05 | 8609411 | expired (1987-12-08) | Issued: 1987-02-23 | additions alterations or repairs | 4035 20th St | construct rear patio

No Planning Cases Found

Analysis Neighborhood: Castro/Upper Market Supervisor District: 8 Planning District: Central (7) Police District: MISSION (Company D)

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

This report identifies parcel 3604085 as 4035 20TH ST, located in the Castro/Upper Market area, Supervisor District 8, Planning District Central (7), and SFPD MISSION District (Company D). Public assessor roll attributes available for this parcel indicate land use of Single Family Residential, a reported lot area of 3140.0, 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.