Benjamin J Liu

License: E21280; Look the license up with the state
Listed as: engineer
On San Francisco permits: Feb 2021 to Dec 2024

3 permits since 2000 (engineer on 3 permits): 2 completed, 1 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
Dec 30, 2024	Completed final sign-off Jul 2025	1530 Galvez Av	Corestates Construction Services Inc	ev charger for 3 parking lots(001,007,031) install 3 delta 350 kw hp chargers and cabinets. install 3 charging equip skids and foundatoins. install evgo provided signage. install switchgear assemble and all underground conduit and conductors. perform all civil work required for chargers Details Permit 202409130751 Status complete Filed Dec 30, 2024 Permit issued Feb 14, 2025 Final sign-off Jul 29, 2025 Declared cost $40,000 Address 1530 Galvez Av ev charger for 3 parking lots(001,007,031) install 3 delta 350 kw hp chargers and cabinets. install 3 charging equip skids and foundatoins. install evgo provided signage. install switchgear assemble and all underground conduit and conductors. perform all civil work required for chargers Open the permit page	$40,000
Feb 16, 2022	Completed final sign-off Oct 2023	850 La Playa	Corestates Construction Services Inc	install 4 public use ev charging stations within an (e) parking lot; install(1) delta 350kw charger & cabinet, (2)delta 100kw city chargers, evgo provided signage, (1)utility transformer, switch gear assembly and all underground conduit and conductors, perform all civil work required for Details Permit 202202168135 Status complete Filed Feb 16, 2022 Permit issued Dec 14, 2022 Final sign-off Oct 31, 2023 Declared cost $300,000 Address 850 La Playa install 4 public use ev charging stations within an (e) parking lot; install(1) delta 350kw charger & cabinet, (2)delta 100kw city chargers, evgo provided signage, (1)utility transformer, switch gear assembly and all underground conduit and conductors, perform all civil work required for Open the permit page	$300,000
Feb 23, 2021	In progress issued Apr 2026	800 Howard St	Albion Power Company Inc	to construct a 837 kw dc (600w x 1395 modules) solar array on moscone west convention center and perform associated roofing repairs. Details Permit 202102235185 Status issued Filed Feb 23, 2021 Permit issued Apr 28, 2026 Address 800 Howard St to construct a 837 kw dc (600w x 1395 modules) solar array on moscone west convention center and perform associated roofing repairs. Open the permit page