Lung Lau

License: 94248; State contractor license record
Listed as: engineer
On San Francisco permits: Apr 2026 to Aug 2026

4 permits since 2000 (engineer on 4 permits): 4 in progress.

CompletedIn progressNever finaledExpired or cancelled

This is the city’s permit record, not a license check: the role and the number come from what was written on each permit (the number spelled one way). It does not show whether the license is current. How to read these records

Most recent permits

Filed	Outcome	Address	Contractor	Work described on the permit	Declared cost
Aug 6, 2026	In progress filed Aug 2026, not yet issued	1642 31st Av		revision 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 Open the permit page	$20,000
Jun 24, 2026	In progress issued Jun 2026	1642 31st Av	Yong 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 Open the permit page	$10,000
May 27, 2026	In progress issued Aug 2026	391 Joost Av	Kai Construction Inc	rear yard landscaping only to respond to complaint# 202656268. add (n) storage 180 sq ft extension at basement Details Permit 202605271959 Status issued Filed May 27, 2026 Permit issued Aug 18, 2026 Declared cost $30,000 Address 391 Joost Av rear yard landscaping only to respond to complaint# 202656268. add (n) storage 180 sq ft extension at basement Open the permit page	$30,000
Apr 30, 2026	In progress issued May 2026	1642 31st Av	Yong 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 Open the permit page	$2,000