Permit GraphShortlistSan Francisco building permits since 2000

Block 1913, lot 033

1642 31st Ave

City’s use
Single Family Residential
Built
1938
Stories
1
Units
1
Rooms
1 bathroom
Building
1,375 sq ft
Lot
3,000 sq ft
Zoning
RH1
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
FiledOutcomeAddressContractorWork described on the permitDeclared cost
Aug 6, 2026In progress
filed Aug 2026, not yet issued
1642 31st Avrevision to pa 202604300368 2nd fl - (e) bath remodel, add 2 (n) bathrooms, add (n) bedroom, enclose (e) lightwell
Details
Permit
202606294095
Status
filed
Filed
Aug 6, 2026
Declared cost
$20,000
Address
1642 31st Av

revision to pa 202604300368 2nd fl - (e) bath remodel, add 2 (n) bathrooms, add (n) bedroom, enclose (e) lightwell

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$20,000
Jun 24, 2026In progress
issued Jun 2026
1642 31st AvYong Hong Construction Inc.revision to pa# 202604300368. relocate (n) bath & (n) bar at 1st floor. relocate washer & dryer to garage. revise detail 4,5 on sheet s2.2 per site. reduce media room size for (n) wine cellar construction
Details
Permit
202606243828
Status
issued
Filed
Jun 24, 2026
Permit issued
Jun 26, 2026
Declared cost
$10,000
Address
1642 31st Av

revision to pa# 202604300368. relocate (n) bath & (n) bar at 1st floor. relocate washer & dryer to garage. revise detail 4,5 on sheet s2.2 per site. reduce media room size for (n) wine cellar construction

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$10,000
Jun 9, 2026In progress
issued Jun 2026
1642 31st AvYong Hong Construction Inc.add (n) deck 171 sqft at 2nd floor. revision to bpa: 202604300368
Details
Permit
202606092848
Status
issued
Filed
Jun 9, 2026
Permit issued
Jun 12, 2026
Declared cost
$20,000
Address
1642 31st Av

add (n) deck 171 sqft at 2nd floor. revision to bpa: 202604300368

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$20,000
Apr 30, 2026In progress
issued May 2026
1642 31st AvYong Hong Construction Inc.partially convert garage to 2 bedrms, 2 baths, (n) media; relocate (e) stairway from 1st to 2nd fl; kitchen remodel; upgrade elecrical panel to 200 amp; add (n) radiant floor heating; relocate washer, dryer & water heater
Details
Permit
202604300368
Status
reinstated
Filed
Apr 30, 2026
Permit issued
May 1, 2026
Declared cost
$2,000
Address
1642 31st Av

partially convert garage to 2 bedrms, 2 baths, (n) media; relocate (e) stairway from 1st to 2nd fl; kitchen remodel; upgrade elecrical panel to 200 amp; add (n) radiant floor heating; relocate washer, dryer & water heater

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$2,000
Apr 24, 2026In progress
issued Apr 2026
1642 31st AvYong Hong Construction Inc.2/f: drywall in living rm, dining rm, bedroom and install (n) 5/8"xgyp. no wall to be demo/remove layout remain unchanged.
Details
Permit
202604240036
Status
issued
Filed
Apr 24, 2026
Permit issued
Apr 24, 2026
Declared cost
$6,000
Address
1642 31st Av

2/f: drywall in living rm, dining rm, bedroom and install (n) 5/8"xgyp. no wall to be demo/remove layout remain unchanged.

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$6,000

Who worked here

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

Contractors
Yong Hong Construction Inc. (4)
Engineers
Lung Lau (3), Sai Chung Wan

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