PROPERTY OVERVIEW
APN: 3605055B
Address: 3983 20TH ST
Block / Lot: 3605 / 055B
Land Use: Single Family Residential
Lot Area: 2137.5
Zoning District: RH-1
Zoning Name: RESIDENTIAL- HOUSE, ONE FAMILY
Zoning General Type: Residential
OWNERSHIP & ASSESSMENT
Owner: Not publicly available
Assessed Land Value: 333259.0
Assessed Improvement Value: 401837.0
Total Assessed Value: 735096.0
SALES & TRANSFER HISTORY
Last Sale Date: 1993-07-02
Last Sale Price: Not publicly available
PERMIT ACTIVITY (DBI)
Summary: complete: 4, expired: 5, issued: 1
Recent Permits:
2025-12-08 | S20251030281 | complete (2026-01-08) | Issued: 2026-01-05 | Unknown | 3983 20th St | solar permit: installing 15 solar pv modules, 410 watts per module, total no. of rating 6.15 kw. mounted: roof, ballasted: n, including 1 e…
2011-12-28 | 201112281414 | issued (2011-12-28) | Issued: 2011-12-28 | otc alterations permit | 3983 20th St | remodel of existing bathroom, new fixtures, tile flooring, shower/tub enclosure, new lighting fixtures & cabinets. all (n) lighting must co…
2009-06-08 | 200906089989 | complete (2009-07-10) | Issued: 2009-06-11 | otc alterations permit | 3983 20th St | repair beam @ rear sunroom; new lateral braces for lateral upgrade @ rear with post footing replacement.
2007-11-05 | 200711057318 | expired (2009-06-16) | Issued: 2007-11-05 | otc alterations permit | 3983 20th St | replace garage slab in kind. no increase in height. minumum 3 /12" thick.
2000-09-25 | 200009251507 | expired (2001-01-25) | Issued: 2000-09-25 | otc alterations permit | 3983 20th St | renewal of application 9925944 until work is done
1999-12-09 | 9925944 | expired (2000-06-09) | Issued: 1999-12-09 | otc alterations permit | 3983 20th St | renewal per app #9809541
1999-12-09 | 9925940 | expired (2000-04-09) | Issued: 1999-12-09 | otc alterations permit | 3983 20th St | revision to app #9805541
1998-05-27 | 9809541 | expired (1999-08-11) | Issued: 1998-08-11 | additions alterations or repairs | 3983 20th St | finish 1st flr to create living space
PLANNING CASES (ACCELA)
No Planning Cases Found
ADMINISTRATIVE & PLANNING CONTEXT
Analysis Neighborhood: Castro/Upper Market
Supervisor District: 8
Planning District: Central (7)
Police District: MISSION
EXECUTIVE SUMMARY
This report identifies parcel 3605055B as 3983 20TH ST, located in the Castro/Upper Market area, Supervisor District 8, Planning District Central (7), and Police District MISSION.
Public assessor roll attributes available for this parcel indicate land use of Single Family Residential, a reported lot area of 2137.5, 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.