37.7852, −122.3987 A locator map appears here once a Mapbox token is configured.
Know This Place

District 6 · Block 3735, Lot 017 · ZIP 94105

50 Hawthorne Street

Office building

  • 3 stories
  • 21,936 ft2 lot area
  • Zoned C3S
  • Historic resource
  • Sold August 29, 2012
37.7852, −122.3987 Street View appears here once a Google Maps embed key is configured.
  1. 1964

    Built.

  2. Nov 1990
    Permit 9023883 $$$ $300,000

    General alteration & t.i., demolition, const int architectur.

  3. Sep 2012
    Issued Permit 201209280892 $$$ $735,000

    Remove existing precast concrete facade & install new curtain wall system, revisions to entrance lobby layout & 1st fl toilet rm layout, relocate exterior entrance stair & revise garden court layout. no increase in office space.

  4. Apr 2014
    Permit 201404082673 $$$ $1,171,320

    3rd floor: t.i. work including new partitions, door and ceilings and millwork. mechanical electrical structural. life safety and sprinklers under seperate permit.

  5. Apr 2014
    Permit 201404082675 $$$ $1,171,320

    Interior tenant improvement on the 2nd floor including new partitions, doors, & ceilings, millwork, mechanincal, electrical, structural, ls & sprinklers under seperate permit.

  6. Apr 2014
    Permit 201404082674 $$$ $1,000,920

    Interior tenant improvement on first floor including new partitions, doors, ceilings and millwork. mechanical, electrical, structural, life safety & sprinklers under seperate permit.

  7. Apr 2014
    Permit 201404183653 $$$ $625,000

    Structural work associated with approved app#201404082673 and 201404082675 including stair and platform.

  8. Apr 2014
    Permit 201404213718 $$$ $696,300

    New roof deck on existing roof, extension of existing stairs & new elevator from 3rd floor to roof, structural work under seperate permit.

  9. Apr 2014
    Permit 201404284302 $$$ $90,000

    Structural work associated with approved permit application 201404213718 & 201404082673, elevator shaft.

  10. Apr 2014
    Permit 201404304619 $$$ $675,000

    Mechanical and electrical work associated with 201404082675 including new vav boxes, fans, heat pumps, lighting.

  11. Apr 2014
    Permit 201404304620 $$$ $675,000

    Mechanical and electrical work associated with 201404082673 including new vav boxes, fans, heat pumps, lighting.

  12. Apr 2014
    Permit 201404304617 $$$ $490,000

    Mechanical and electrical work associated with 201404082674 including new vav boxes, fans, heat pumps, lighting.

  13. Jul 2014
    Permit 201407030445 $$$ $63,860

    Relocate 37 pendent sprinklers & 1 upright on 1/f. relocate 29 pendent sprinklers & 9 uprights on 2/f. relocate 39 pendent sprinklers & 7 uprights on 3/f. t.i. permit application 201404082673, 201404082674 & 201404082675.

  14. Nov 2017
    Permit 201711204363 $$$ $315,000

    1, 2, 3 floors: interior demolition of partitions, doors, glazing, millwork and finishes. space to remain vacant per ab-017 and ada will be addresses on future ti permit. no exterior work.

  15. Dec 2017
    Permit 201712217137 $$$ $1,200,000

    3rd fl ti. partial demolition of partitions. new partitions. mep. new finishes. fire safety under seperate permit.

  16. Dec 2017
    Permit 201712217138 $$$ $1,200,000

    2nd fl ti. partial demolition of partitions. new partitions. mep. new finishes. fire safety under seperate permit.

  17. Dec 2017
    Issued Permit 201712217139 $$$ $1,200,000

    1st fl ti. partial demolition of existing partitions. new partitions. mep. new finishes, new louver on 1st floor level (kaplan) to provide ventilation for new showers. fire safety under seperate permit.

  18. Feb 2018
    Issued Permit 201802282439 $$$ $93,750

    1, 2, 3 floor -existing fire sprinkler 62 relocate pendents, 98 added pendents, 59 relocate sprinklers upright, 29 added uprights, 41 plugged outlets- bracing verified, new hyraclice calc's for first floor protection aboive and below ceiling.

  19. Nov 2019
    Permit 201911268213 $$$ $172,773

    1st floor: demolition construction of partitions, glazing, millwork, doors, & finishes on existing t.i. mep on seperate permit. maher n/a.

  20. Jan 2020
    Permit 202001081485 $$$ $65,670

    T-24 to install new ductwork and hvac equipment, power and lighting phase refer to pa 2019-1126-8213 for ti work on 1st fl.

  21. Feb 2020
    Issued Permit 202002285667 $$$ $100,000

    Fire alarm on 1st fl: add 3 notification appliances and relocate 1 notification appliance, add 1 smoke detector in fire alarm system 1st fl 201911268213.

  22. Mar 2026
    Issued Permit 202603187875 $$$ $940,000

    All floors: interior tenant improvement to include non-structural partitions, new ceilings, and associated electrical, lighting, plumbing, and new finishes throughout area of work. new millwork elements and new furniture. mep, fire life safety to be deferred submittal.

  23. Apr 2026
    Issued Permit 202604270180 $$$ $48,000

    3rd floor interior tenant improvement to include new barista bar serving coffee, tea and grab & go prepackaged food. new back of house catering area.

  24. May 2026
    Issued Permit 202605261919 $$$ $713,232

    L1-3: deferred mep for permit application 202603187875.

DBI holds 62 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 62. 7 of them are nominal $1 street-space or sidewalk permits. 1 cancelled permit is not shown.

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