37.7811, −122.3917 A locator map appears here once a Mapbox token is configured.
Know This Place

District 6 · Block 3788, Lot 002 · ZIP 94107

U.S. Radiator Building

640 Second Street

  • Office building
  • 3 stories
  • 23,961 ft2
  • 8,790 ft2 lot area
  • Zoned SSO
  • Historic resource
  • Sold December 17, 2009
37.7811, −122.3917 Street View appears here once a Google Maps embed key is configured.
  1. 1925

    Built.

  2. Aug 1992
    Permit 9214743 $$$ $6,000

    Parapet reinforcing.

  3. Jun 1999
    Permit 9913255 $$$ $500,000

    (e-z) new entry, elevator, electrical system, havc, tiilet rm.

  4. Aug 1999
    Withdrawn Permit 9915816 $$$ $50,000

    New fire protection only.

  5. Sep 1999
    Permit 9920064 $$$ $40,000

    Interior no-structural demolition only on ground floor.

  6. Jun 2000
    Permit 200006192969 $$$ $2,000

    Supervision of sprinkler system only at ground floor.

  7. Jun 2000
    Permit 200006263675 $$$ $40,000

    Oti-1, 3rd floor, el, me, ls, sp.

  8. Jun 2000
    Permit 200006263671 $$$ $40,000

    Oti-2 3rd floor, el, me.

  9. Aug 2000
    Permit 200008087276 $$$ $2,495

    Oti-3 3rd floor sprinkler.

  10. Aug 2000
    Permit 200008168016 $$$ $100,000

    Oti-1, 2nd floor el, me.

  11. Aug 2000
    Permit 200008188207 $$$ $50,000

    Oti-1: (1st fl) el, me, l/s.

  12. Sep 2000
    Permit 200009130349 $$$ $125,000

    Oti-2: el, me, sp 2nd fl.

  13. Sep 2000
    Permit 200009140486 $$$ $50,000

    Oti 2 1st floor el, me.

  14. Oct 2000
    Permit 200010102541 $$$ $6,000

    Oti 1 2nd floor no support/revision.

  15. Oct 2000
    Permit 200010102535 $$$ $6,000

    Oti-1 1st floor el me only.

  16. Oct 2000
    Permit 200010243854 $$$ $1,800

    Oti-2nd floor spr.

  17. Dec 2004
    Permit 200412060733 $$$ $7,500

    For interior demolition oly. interior demolition of existing non-rated partions.

  18. Dec 2004
    Permit 200412151485 $$$ $7,050

    Alter 2nd floor sprinkler sytem add 47 sprinkler heads.

  19. Dec 2004
    Permit 200412211890 $$$ $300,000

    Wnd floor tenant imporvement.

  20. Jul 2025
    Permit 202507110610 $$$ $166,845

    Reroofing: no torch down. overlay existing roof with carlisk 60 mil 7po mechanically attached roof system 78 squares.

DBI holds 26 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 26. 1 of them are nominal $1 street-space or sidewalk permits. 5 expired or cancelled permits are not shown.

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