Lori A. Simpson

License: GE2396; Look the license up with the state
Listed as: authorized agent-others, engineer
Firm: Langan Treadwell Rollo
Based in: San Francisco
On San Francisco permits: Jun 2005 to Oct 2025

6 permits since 2000 (engineer on 5 permits, authorized agent-others on 1 permit): 4 completed, 1 never finaled, 1 expired or cancelled.

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
Oct 16, 2025	Completed final sign-off Apr 2026	449 Avenue H	Devcon Construction	soil improvement. design build const of vibro displacement column (vdc) & 1 vibro compaction ground improvement. ground improvement only & exclude design & construction of foundation shoring. temporary construction pad grading & final pad grading. ref to grading pa# 202510066801 Details Permit 202510167538 Status complete Filed Oct 16, 2025 Permit issued Nov 4, 2025 Final sign-off Apr 3, 2026 Declared cost $534,000 Address 449 Avenue H soil improvement. design build const of vibro displacement column (vdc) & 1 vibro compaction ground improvement. ground improvement only & exclude design & construction of foundation shoring. temporary construction pad grading & final pad grading. ref to grading pa# 202510066801 Open the permit page	$534,000
Nov 14, 2018	Completed final sign-off Mar 2022	950 Market St	Lend Lease (Us) Construction Inc	soil/ground improvement Details Permit 201811145785 Status complete Filed Nov 14, 2018 Permit issued Dec 17, 2018 Final sign-off Mar 18, 2022 Address 950 Market St soil/ground improvement Open the permit page
Aug 28, 2018	Completed final sign-off May 2019	2465 Van Ness Av	Webcor Construction Lp	ground stability improvement utilize installation of drilled displacement columns (ddc) to improve the fill & allow support of bldg using shallow foundations. the improvements should mitigate liquefaction potential in the fill, as prescribed in gedtech report dated 3/18/16. ref pa# 2016/12/28/5989-s Details Permit 201808288546 Status complete Filed Aug 28, 2018 Permit issued Oct 18, 2018 Final sign-off May 22, 2019 Declared cost $670,000 Address 2465 Van Ness Av ground stability improvement utilize installation of drilled displacement columns (ddc) to improve the fill & allow support of bldg using shallow foundations. the improvements should mitigate liquefaction potential in the fill, as prescribed in gedtech report dated 3/18/16. ref pa# 2016/12/28/5989-s Open the permit page	$670,000
Dec 13, 2017	Completed final sign-off May 2020	720 Powell St	Swinerton Builders	temporary shoring and excavation to accomodate new construction at 770 powell/875 california Details Permit 201712136382 Status complete Filed Dec 13, 2017 Permit issued Feb 26, 2018 Final sign-off May 18, 2020 Declared cost $50,000 Address 720 Powell St temporary shoring and excavation to accomodate new construction at 770 powell/875 california Open the permit page	$50,000
May 21, 2015	Expired or cancelled withdrawn Mar 2016	1800 Owens St	Malcolm Drilling Co Inc	test program for design build stone colum ground improvement for new construction ref pa# 2014/09/04/5458's'. total of 32 test piles (16 in two locations). Details Permit 201505216929 Status withdrawn Filed May 21, 2015 Declared cost $90,000 Address 1800 Owens St test program for design build stone colum ground improvement for new construction ref pa# 2014/09/04/5458's'. total of 32 test piles (16 in two locations). Open the permit page	$90,000
Jun 10, 2005	Never finaled issued Jun 2005, no final	175 Bluxome St		install a fountain in private courtyard. Details Permit 200506104760 Status issued Filed Jun 10, 2005 Permit issued Jun 10, 2005 Declared cost $5,000 Address 175 Bluxome St install a fountain in private courtyard. Open the permit page	$5,000