315 Montgomery Street

1. 1921

   Built.

2. 1923

   The California Commercial Union Building, designed by architect George Kelham.

   Architecture, Planning & Preservation Professionals: A Collection of Biographies, adopted 2021
3. Nov 1981

   Additions alterations or repairs.

   Complete Permit 8109768 $$$ $38,000
4. Mar 2015

   1st fl modification to add business office space. work includes new raised fl with access ramp, new offices, new ceiling design. new restrooms, few meeting rooms, and breakroom this also includes new furniture and finishes. n/a for maher ordinance.

   Withdrawn Permit 201503050068 $$$ $1,000,000
5. Apr 2015

   New t.i. in partial ground floor work includes new office, new restroom, break room, struct, & m.e.p. work. n/a maher ordinance.

   Issued Permit 201504304986 $$$ $200,000
6. Jul 2015

   Mezzanine-project includes demolition existing non-structural partitions, door frames, millwork, ceiling grid &tile, sprinkler branches, lighting, power, & finishes. construct similar non-structural items prepared as an unoccupied space. no changed in occupancy/floor area. mep, life safety, sprinkler under separate.

   Complete Permit 201507292749 $$$ $626,314
7. Jul 2015

   10th floor-project includes demolition existing non-structural partitions, door frames, millwork, ceiling grid &tile, sprinkler branches, lighting, power, & finishes. construct similar non-structural items prepared as an unoccupied space. no changed in occupancy/floor area. mep, life safety, sprinkler under separate.

   Complete Permit 201507292752 $$$ $757,529
8. Jul 2015

   2nd floor-project includes demolition existing non-structural partitions, door frames, millwork, ceiling grid &tile, sprinkler branches, lighting, power, & finishes. construct similar non-structural items prepared as an unoccupied space. no changed in occupancy/floor area. mep, life safety, sprinkler under separate.

   Complete Permit 201507292751 $$$ $566,264
9. Jun 2016

   15/f -demolition of existingnon-structural partitions, doors/frame, millwork, ceiling grid & tile, sprinkler branches, lighting, power & finishes. construction of similar non-structural items prepared as an unoccupied space for marketing. remodel common restrooms. separate ti permit. maher na.

   Complete Permit 201606270975 $$$ $921,228
10. Dec 2016

    Mezz & 2/f- t.i. on 2 floors, work includes new partitions, doors, frames, ceiling, lighting, finishes, casework, electrical, mechanical and plumbing. n/a ordinance #155-13.

    Complete Permit 201612134862 $$$ $1,175,000
11. Apr 2017

    10th floor: t.i. for modifications to unoccupied full floor tenant suite. including non-structural partitions doors, interior glazing, ceilings, light fixtures, millwork and finishes. mep and fire, ls under seperate permit. n/a for maher.

    Complete Permit 201704033033 $$$ $972,582
12. Aug 2017

    1st fl - ti, modify existing banking center. new ucr rooms, atm room, open offices, new ceiling.

    Issued Permit 201708175074 $$$ $600,000
13. Aug 2017

    Ti on 13th and 14th floors - to construct new partitions doors, finishes & millwork. mep, life safety sprinklers on separate permit.

    Complete Permit 201708256002 $$$ $1,776,700
14. Aug 2017

    Ti on 15th and 16th floors - to construct new partitions doors, finishes & millwork. mep, life safety sprinklers on separate permit.

    Complete Permit 201708256003 $$$ $1,284,800
15. Sep 2017

    Title 24 mep to add new equipment to tenant improvment on 13th and 14th fl see #201708256002 for ti work maher not req.

    Complete Permit 201709158590 $$$ $920,000
16. Sep 2017

    1/f- t.i. modifications to include relocated access ramp and stairs, new financial and client advisor rooms & client meeting rooms, new ceilings. existing restrooms and breakrooms to remain. new furniture and finishes. n/a ordinance #155-13.

    Complete Permit 201709158416 $$$ $700,000
17. Sep 2017

    Title 24 mep on floors 15 and 16 to add new equipment. ref 201708256003 for ti work maher not req.

    Complete Permit 201709158593 $$$ $672,000
18. Nov 2017

    T.i. alterations to existing 7th floor. new partition, doors, ceilings, light fixtures, millwork, and finishes. n/a for maher.

    Complete Permit 201711224724 $$$ $2,500,000
19. Mar 2018

    8/f: modification to an existing unoccupied full floor tenant suite. scope of work includes constructon of non-structural partitions, doors, int. glazing, ceilings, lighting, millwork & finishes. no change in occupancy or floor area. mep, life safety, sprinklers under sep. permit. maher na.

    Complete Permit 201803234416 $$$ $1,013,979
20. Jun 2018

    12th fl full floor ti for office mep def floor maher not req; ref permit application 201712116097.

    Complete Permit 201806121600 $$$ $980,000
21. Jul 2018

    13th floor - t.i. new paritions, millwork & finishes. mep deferred.

    Complete Permit 201807033636 $$$ $980,000
22. Oct 2019

    14/f: t.i. of existing unoccupied full floor. no change in occupancy use or area. accessible restrooms & drinking fountain under sep permit. maher n/a. formerly known as 13th floor.

    Complete Permit 201910043559 $$$ $929,549
23. Oct 2019

    5th floor t.i. /interior alateration to existing 5th floor. new partitions, doors, ceilings, light fixtures. millwork and finishes. fully sprinklered building. meps and structural included.

    Complete Permit 201910174741 $$$ $1,200,000
24. Oct 2019

    Tenant improvement of 3rd floor. unoccupied full floor. addition of 2 a-3 occupancy spaces and horizontal exit per pre app meeting notes dwg 3a-0.1.0 and 3a-0.1.1. m.e.p. and structural under separate permit.

    Issued Permit 201910285690 $$$ $810,435
25. Jun 2025

    1st fl: reconfiguration of teller line, breakroom, furniture and finishes upgrade. interior tenant improvement of existing space. no change of use or occupancy. existing bank of america.

    Complete Permit 202506108308 $$$ $850,000
26. Jan 2026

    Level 17: ti, demolition of existing & construction of new partitions, millwork, lighting, & finishes.

    Complete Permit 202601164045 $$$ $958,720
27. Jul 2026

    9th & 10th/f t.i. demolition walls, ceilings, light fixture, eletrical, plumbing, minor mechanical, doors, casework, & finiesh. addition of new walls, ceilings, light fixture, eletrical, plumbing, minor mechanical, doors, casework, & finiesh.

    Issued Permit 202607295731 $$$ $1,200,000

DBI holds 417 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 417. 16 of them are nominal $1 street-space or sidewalk permits. The assessor's roll gives 1921; this address is recorded as built 1923.