100 Larkin Street

1. Nov 1991

   Erect a seven story public library-new main branch library.

   Expired Permit 9122132S $$$ $85,000,000
2. Feb 1992

   Excavatation.

   Complete Permit 9202245 $$$ $666,000
3. 1996

   The James C. Hormel Gay and Lesbian Center opened in the San Francisco Public Library's Main Library in 1996.

   Donna J. Graves and Shayne E. Watson, Citywide Historic Context Statement for LGBTQ History in San Francisco, San Francisco Planning Department, adopted by the Historic Preservation Commission November 18, 2015
4. Apr 2000

   Interior renovation of personnel offices and gift shop on 2nd floor.

   Complete Permit 200004177427 $$$ $120,000
5. Mar 2005

   Replace/repair motor of one fan. installing (2) 150 hp vfd drives.

   Complete Permit 200503167703 $$$ $120,000
6. Feb 2006

   Scope consists of 1st floor renovation of main library. tenant improvments and installation of sorting machine, automated storage and retrievel machine by logistex (under different permit). no exterior work.

   Complete Permit 200602174942 $$$ $2,800,000
7. Jun 2007

   Add 2 new vfd's to existing fans (sq ft-1 & sq ft-1a) in basement.

   Expired Permit 200706012794 $$$ $80,000
8. Dec 2013

   Installation of demountable wall to separate 2 office departments. this wall will provide 18"min. clear opening at top throughout length of wll. wall will be equipped with power & data receptacles. elective disposal & or relocation accessories for ada upgrade.

   Issued Permit 201312123995 $$$ $40,000
9. Mar 2014

   Tenant improvement for teen ctr at 2/fl. selective interior demolition ofexistingbldg, construction of new offices, sound booth, video recording booth, maker space(arts&crafts) single user restroom with updated mechanical, plumbing, electrical sys. fire sprinkler and fire alarm revisions under separate application.

   Complete Permit 201403049796 $$$ $1,800,000
10. Mar 2014

    6th floor - demolitoin of existing offices, ceiling tile, & flooring. installation of new walls to create new offices, new carpet, gypsum board ceiling, & relocation of existing lights. new mechnaical supply & return grills to be installed. selective disposal &/or relocation of accessories for ada upgrade.

    Issued Permit 201403049789 $$$ $112,000
11. Apr 2014

    Partial renovation 5th fl. work includes reconf of existing electrical, mechanical w0rk. installtion of new study rooms, office, copy room, break room & learning lab. installation of new finishes including flooring, paint & glaze. fire sprinkler & fire alarm under separate appln. n/a ordinance #155-13.

    Issued Permit 201404012210 $$$ $600,000
12. Jun 2014

    Partial renovation of 6th floor office space. work includes installation of new walls, windows, and finishes. reconfiguration of existing electrical, mechanical. fire alarm and sprinkler system under seperate permits.

    Issued Permit 201406198900 $$$ $200,000
13. Apr 2015

    Interior signage upgrade maher - not req'd.

    Issued Permit 201504032776 $$$ $95,000
14. Nov 2017

    Install projector and motion sensor on top of library.

    Issued Permit 201711133816 $$$ $80,000
15. Apr 2019

    Minor barrier removal and finishes, replacement associated with elevator modernization n/a maher.

    Complete Permit 201904057227 $$$ $70,000
16. Nov 2019

    Basement/lower level only: selective demolition of partitions and ceilings. alterations to portion of existing floor plan, new partitions and ceilings. refurbish interior finishes, partial replacement of gypsum sheathing and paint throughout.

    Issued Permit 201911157465 $$$ $600,000
17. Dec 2020

    Installation of glass partitions around 4/f atrium guardrails. life/safety issue.

    Complete Permit 202012291884 $$$ $300,000
18. Nov 2021

    Non structural interior alterations, including selective demolition and new partitions, doors, ceilings, finishes and mep including lighting and hvac.

    Complete Permit 202111152364 $$$ $679,125
19. Jun 2022

    Installation of a glass barricade for safety on the 5th floor bridge.

    Complete Permit 202206035610 $$$ $220,131
20. Feb 2024

    Upgrade the 7 fire alarm system panels. add a cellular dialer, replace cards in existing annuciator and to replace initiating devices and modules at their existing location.

    Issued Permit 202402015109 $$$ $145,000
21. Sep 2025

    Replacement of roofing membrane, replace sealant around skylights and curtainwall, replace plumbing drains as need on roof drains.

    Issued Permit 202509165379 $$$ $4,000,000
22. Dec 2025

    Laminated glass safety barriers will be bolted to the existing metal guardrails.

    Complete Permit 202512091335 $$$ $490,000
23. Dec 2025

    3rd & 4th fl - installation of laminated glass safety barriers around the central curved atrium floor opening at the 3rd & 4th fl of the main library. laminated glass safety barriers will be bolted to the existing metal guardrails.

    Complete Permit 202512091334 $$$ $180,000
24. Dec 2025

    Installation of safety floor grilles at selected floor openings on 3rd and 4th floor of main library. floor grilles are a safety measure to prevent people from jumping off the existing guard rails.

    Complete Permit 202512192263 $$$ $175,000
25. Apr 2026

    Removal of existing 42 atrium smoke exhaust fans and replacement with 42 new atrium smoke exhaust fans due to equipment obsolescence.

    Filed Permit 202604169561 $$$ $5,000,000

DBI holds 60 permits for this parcel, most of them tenant improvements on individual floors. The timeline shows the 24 largest by stated cost, plus the earliest on file; the DBI query in the sources below returns all 60. 1 of them are nominal $1 street-space or sidewalk permits.