Building permitCupertinoPlan Review

18891 Tilson Ave, Cupertino Ca 95014-3640

Residential Alteration permit in Cupertino, issued April 15, 2026. Permit #REC26-00000-0017T.

Plan Review
STATUS
April 15, 2026
ISSUED

Permit details

Permit numberREC26-00000-0017T
Address18891 Tilson Ave, Cupertino Ca 95014-3640
Permit typeResidential Alteration
Work descriptionREMODEL OTHER (1,305 SF) - REMODEL DINING AREA; CONVERT (E) BEDROOM TO MASTER BEDROOM; ADD (N) BATHROOM AND LAUNDRY ROOM - ATTACHED ADU (625 SF) UNDER BLD-2026-0851

Watching this neighborhood?

Get an email within minutes when a new Cupertino permit matches your trade, ZIP codes, or valuation range. Free to start.

Set up a free alert →
← All Cupertino permitsWeekly Cupertino digestsPermit lookup by address

Source: Cupertino official permit records (City of Cupertino Building Division (Community Development Department)), retrieved by The Permit Sheet. Verify current status with the issuing department via Accela Citizen Access (Cupertino Online Permit Service Portal) before relying on it.