171–173 23rd Avenue

1. March 15, 1907

   Alfred J. Boudreau contracted to put up a two-storey building.

   The San Francisco Call, 15 March 1907, p. 13
2. 1908

   Built.

3. May 1998

   Permit 9809399 $$$ $1,200

   Repair siding on right side/repair dry rot studs.

4. Sep 2005

   Permit 200509132778 $$$ $17,500

   Termit report# 6814. item# 2, raise foundation height (capexisting fdn).

5. Jan 2006

   Permit 200601172278 $$$ $3,500

   Repair items on termite report. item #4-r/r back porch landing&stairs steps.item8-raise all 3 post off ground &resupport exist post remove post in garage undersized &install post strape & install bracket & repair 3 piers.

6. Dec 2009

   Issued Permit 200912314041 $$$ $80,000

   Remodel existing bath, add new bath, convert living & bedrm, convert dining to living, remove fireplace on 3rd fl, convert existing breakfast to office &existing kitchen to dining, remodel &relocate kitchen, remodel existing bathrm, remove fireplace on 2nd fl, remod kitchen, bedrm, living/dining, 1 bath & office on g/f.

7. Sep 2012

   Permit 201209200240 $$$ $11,000

   Remove and replace 9 front windows, 14 rear windows in kind.

8. Jun 2026

   Issued Permit 202606092795 $$$ $100,000

   Replace rear stove in kind. one unit (2nd floor) remove wall between kitchen and breakfast. kitchen remodel. convert living room into bedroom and dining into living. one unit (3rd floor). remove wall between kitchen and office. kitchen remodel convert living room into bedroom and dining into living.

9. Jul 2026

   Issued Permit 202607094742 $$$ $25,000

   Revision to 202606092795. add new framing and reinforce framing at rear. add washer and dryer to 2nd and 3rd floor. modify bath and 1/2 bath at 3rd floor.

1 nominal $1 street-space or sidewalk permit is omitted from the timeline.