2460 Union Street

1. 1872

   Tilton house, since moved here

   Stephen Tilton's house of 1872 stood near the centre of his lot at Union and Steiner Streets, beside the Presidio & Ferries cable train terminal, with a four-storey pump house and windmill on the property. It was later moved to 2460 Union Street.

   Robert Bardell, “The Presidio & Ferries Railroad,” The Argonaut: Journal of the San Francisco Historical Society, vol. 29, no. 2 (Winter 2018), pp. 6–33
2. 1900

   Built.

3. Jul 2001

   Permit 200107274674 $$$ $15,900

   Reroofing.

4. Dec 2003

   Permit 200312162418 $$$ $130,000

   Renewal of the 2001 foundation permit for the remaining work.

5. Jul 2009

   Permit 200907293713 $$$ $100,000

   Garage enlarged — excavation and new concrete retaining walls, with no change to the street frontage or the garage door.

6. Sep 2025

   Issued Permit 202507221335 $$$ $85,000

   A 304 sq ft pool with a 54 sq ft spa built in the back yard, with a certified safety cover and related equipment.

Six of the 32 filings on this address are shown; the rest are street-space permits, $1 renewals made to obtain final inspection on earlier work, and interior kitchen, bathroom and deck permits. 2 expired permits are not shown. The assessor's roll and SF Planning both record a year built of 1900; the house reported moved to this address was built in 1872.