Block 2806, lot 037

4365 23rd St

City’s use: Single Family Residential
Built: 1939
Stories: 1
Units: 1
Rooms: 1 bathroom
Building: 1,250 sq ft
Lot: 2,835 sq ft
Zoning: RH2
Construction type: D

From the assessor's latest secured roll, which can lag recent work. Lot plans, zoning and planning history on the city’s Property Information Map

Permits filed here

5 permits filed for this property since 2000.

CompletedIn progressNever finaledExpired or cancelled

Filed	Outcome	Address	Contractor	Work described on the permit	Declared cost
Aug 10, 2026	In progress issued Aug 2026	4365 23rd St	Siena Pacific, Inc.	earth shoring plan as per requirement stated on pa# 202409060254. Details Permit 202608106328 Status issued Filed Aug 10, 2026 Permit issued Aug 14, 2026 Declared cost $1,000 Address 4365 23rd St earth shoring plan as per requirement stated on pa# 202409060254. Open the permit page	$1,000
Jun 30, 2026	In progress issued Jul 2026	4365 23rd St	Siena Pacific, Inc.	convert (e) living, dining & kitchen into (n) primary suite. construct (n) kitchen & pantry in main floor family room Details Permit 202606304202 Status issued Filed Jun 30, 2026 Permit issued Jul 6, 2026 Declared cost $266,393 Address 4365 23rd St convert (e) living, dining & kitchen into (n) primary suite. construct (n) kitchen & pantry in main floor family room Open the permit page	$266,393
Oct 15, 2024	In progress issued Sep 2025	4365 23rd St	Siena Pacific, Inc.	create new adu in basement ord. 162-16 ab1114. infill (e) lightwell. relocate (e) stair from street level to upper floor to connect to main house. create new stair from street level to new basement adu. earth shoring is required under a separate permit. Details Permit 202409060254 Status issued Filed Oct 15, 2024 Permit issued Sep 2, 2025 Declared cost $985,714 Address 4365 23rd St create new adu in basement ord. 162-16 ab1114. infill (e) lightwell. relocate (e) stair from street level to upper floor to connect to main house. create new stair from street level to new basement adu. earth shoring is required under a separate permit. Open the permit page	$985,714
Oct 30, 2015	Completed final sign-off Nov 2015	4365 23rd St		repair water damage to decks (upper and lower, both at back of house)- additional spindals to deck railing for safety; repair work represents less than 50% Details Permit 201510301329 Status complete Filed Oct 30, 2015 Permit issued Oct 30, 2015 Final sign-off Nov 30, 2015 Declared cost $3,000 Address 4365 23rd St repair water damage to decks (upper and lower, both at back of house)- additional spindals to deck railing for safety; repair work represents less than 50% Open the permit page	$3,000
Jul 24, 2012	Completed final sign-off Sep 2015	4365 23rd St	Narrowback Construction Co.	fill in lightwell, raise closet ceiling, add glass ventilating skylight and parapet. Details Permit 201207245636 Status complete Filed Jul 24, 2012 Permit issued Sep 7, 2012 Final sign-off Sep 25, 2015 Declared cost $5,000 Address 4365 23rd St fill in lightwell, raise closet ceiling, add glass ventilating skylight and parapet. Open the permit page	$5,000

Who worked here

Everyone with a license on these permits, by role, with how many permits each is on.

Contractors: Siena Pacific, Inc. (3), Narrowback Construction Co.
Architects: James Howard Westover (2), Harvey Hacker
Engineers: Arne Halterman, Jillian Van Enckevort

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