37.7857, −122.4094 A locator map appears here once a Mapbox token is configured.
Know This Place

District 5 · Block 0326, Lot 011 · ZIP 94102

222 Mason Street

Hotel

  • 31 stories
  • 574,080 ft2
  • 18,906.25 ft2 lot area
  • 529 residential units
  • 545 rooms
  • 529 bedrooms
  • 541 bathrooms
  • Zoned C3G
  • Not a historic resource
37.7857, −122.4094 Street View appears here once a Google Maps embed key is configured.
  1. Jul 1984
    Permit 7910790S $$$ $41,842,000

    Erect hotel.

  2. 1988

    Built.

  3. Nov 2006
    Withdrawn Permit 200611016586 $$$ $660,000

    Upgrading fire alarm system & bms systems.

  4. Oct 2007
    Permit 200710226120 $$$ $3,500,000

    Cosmetic renovation of guest rooms on floors 6-24. replacing vanaity sink, wall sconces, title, title, counter top, shower enclosers, etc.

  5. Feb 2008
    Permit 200802195024 $$$ $700,000

    Full fire life saftey system upgrade for entire building ( hotel nikko). includes ifc 3030, graphic annuciation, change out of field devices, pull station, smoke detector and others.

  6. Nov 2008
    Permit 200811207057 $$$ $375,000

    Remodel of men's and women's locker rooms including costemic works at reception area.

  7. Mar 2014
    Permit 201403281904 $$$ $500,000

    26th floor: 1)replace heating units with high fire. boiler one unit)install new combined heat and power units (chp). n/a for the maher ordinance #155-13.

  8. Jun 2015
    Permit 201506199436 $$$ $110,000

    5/f: reroofing of existing roof deck, partial demolitoin of existing storefront for new storefront entrances, new ext. roof deck with paver assembly.

  9. Jun 2015
    Permit 201506229527 $$$ $175,000

    Modification to existing 3' seismic joint at floors 3, 4 & 5 as part of a voluntary seismic retrofit. work includes lengthening beam seats at 3rd 4th & 5th floors from pool structure to the tower structure, cutting slab at pool to struture around columns & associated finish removal & replacements.

  10. Oct 2015
    Permit 201510018549 $$$ $425,000

    5th floor interor pool deck renovation including new pool deck paver flooring; new interior finishes; extension of pool deck via enclosure of existing exterior balconies; mep upgrades. l/s, sprinklers deferred.

  11. May 2016
    Permit 201605137433 $$$ $165,000

    Floors 6-22: barrier removal only- scope of work consists of upgrading 16 existing accessible guestrooms to current code compliance and converting two guestrooms into an accessible suite on floor 21.

  12. Jun 2016
    Permit 201606139805 $$$ $720,000

    Various fl: selective demolition and refinishing of walls, floors, ceilings, remove and replace plumbing fixtures, lighting, outlets, casework. no change in occupancy, occ load, or egress. no exterior work, fire life safety under sep permit maher not req.

  13. Jul 2016
    Permit 201607061684 $$$ $220,000

    This scope is phase 2 of a voluntary structural strengthening & consists of the addition of grider catch seats under level 2 & 5 structural slabs & related demolition & construction of walls, floor & ceiling on level 1 & 4 around new seismic members.no change in occupancy, occ load & egress.

  14. Sep 2016
    Permit 201609168047 $$$ $350,000

    This scope is phase 3 of voluntary seismic retrofit & consist of strengthening of existing column splices along the tower perimeter & the demolition. construction of walls in these area. no change in occupancy, occ load, or egress. no exterior work. fire life safety under separate permit.

  15. Mar 2020
    Permit 202003025832 $$$ $327,580

    Reinforce existing structure steel framing at locations for the installation of exterior building facade floors 5, 20, 21, 22, 23, 24, 25, 26 and penthouse-pedestals, safety anchor, guard rail, landers and catwalk, roof access hatches.

  16. Sep 2020
    Permit 202009033438 $$$ $327,580

    Reinforce existing structural steel framing at locations for installation of exterior building facade access improvements associated with 5th, 20th, 21st-26th floors, including penthouse & roof levels. install exterior building facade access improvements. repair/replace finishes adjacent. ref permit application 202003025832.

  17. Oct 2020
    Permit 202010227157 $$$ $896,000

    Renovation of guest bathrooms on l6-l12 and 14-21. slective demolition and installation of finishes, doors, bathroom accessories, light fixtures and plumbing fixtures.

  18. Nov 2020

    Revision to permit application 2020-0919-4505 & 2020-0302-5832: replace 9 concrete landings with 9 prefabricated landings. replace double plate guardrails with single plate guardrails at 25 & 27 floors. update details for plate detachment and stepped ladder attachments at roof.

  19. Oct 2025
    Issued Permit 202509084770 $$$ $1,600,000

    Replace existing fire alarm system with new, replace initiating devices at existing location with new, replace notification appliances at existing locaiton with new.interface with existing smoke control function via bms system.

DBI holds 131 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 131. 2 of them are nominal $1 street-space or sidewalk permits. 6 expired or cancelled permits are not shown.

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