Samuel Yao
- Listed as
- authorized agent-others, engineer
- Firm
- Simpson Gumpertz & Heger
- Based in
- San Francisco
- On San Francisco permits
- Dec 2000 to Apr 2025
7 permits since 2000 (engineer on 6 permits, authorized agent-others on 1 permit): 6 completed, 1 expired 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 |
|---|---|---|---|---|---|
| Apr 3, 2025 | Completed final sign-off Aug 2025 | 160 Freelon St | Cahill Guzman Construction Group Jv | indicator test pile permit. work includes - (10) x indicator test piles (ip-h); - (2) x compressor test piles; 3 reaction test piles. work for future building under pa#202209283327.Details
indicator test pile permit. work includes - (10) x indicator test piles (ip-h); - (2) x compressor test piles; 3 reaction test piles. work for future building under pa#202209283327. | $120,000 |
| Mar 22, 2022 | Completed final sign-off Nov 2023 | 301 Mission St | revision to pa# 201812077819, to revise the excavation and shoring due to change of primary shoring system from jet grout columns to a secant pile wall, modify shoring wall to avoid conflicts with the pg&e vaults & conduits.Details
revision to pa# 201812077819, to revise the excavation and shoring due to change of primary shoring system from jet grout columns to a secant pile wall, modify shoring wall to avoid conflicts with the pg&e vaults & conduits. | ||
| Aug 16, 2016 | Completed final sign-off Apr 2018 | 101 01st St | Clark/Hathaway Dinwiddie A Joint Venture | revision to pa# 2013/12/19/4603-r1. phase ii - shoring. installation of jet grout columns, sealant pies rc slab to support excavation for repair of lbes. monitoring plan for lbe excavation shoring & construction sequence. ** maher: n/a **Details
revision to pa# 2013/12/19/4603-r1. phase ii - shoring. installation of jet grout columns, sealant pies rc slab to support excavation for repair of lbes. monitoring plan for lbe excavation shoring & construction sequence. ** maher: n/a ** | $70,000 |
| Mar 6, 2015 | Completed final sign-off Nov 2015 | 101 01st St | Hathaway Dinwiddie Co. | rev to app #201312194603 revision 1, excavation of lbes below the main excavation of transbay tower project: summary (1) installation of jet grout columns, secant piles and rc slab to support the excavation for repair of lbes 2. monitoring plan 3. sequencing of primary milestones during constrution.Details
rev to app #201312194603 revision 1, excavation of lbes below the main excavation of transbay tower project: summary (1) installation of jet grout columns, secant piles and rc slab to support the excavation for repair of lbes 2. monitoring plan 3. sequencing of primary milestones during constrution. | $10,000,000 |
| Jul 22, 2014 | Expired or cancelled withdrawn Dec 2014 | 101 01st St | Clark/Hathaway Dinwiddie A Joint Venture | revision to pa 201312194603, excavation & shoring; revised excavation & shoring on levels a-d, revise shoring connection detatils; maher n/a (health approved previous appn)Details
revision to pa 201312194603, excavation & shoring; revised excavation & shoring on levels a-d, revise shoring connection detatils; maher n/a (health approved previous appn) | $100,000 |
| Dec 19, 2013 | Completed final sign-off Aug 2017 | 101 01st St | Clark/Hathaway Dinwiddie A Joint Venture | excavation & shoring only. cdsm, bracing, tie back. compliance with ordinance no# 155-13 exempted. approval from dph attached.Details
excavation & shoring only. cdsm, bracing, tie back. compliance with ordinance no# 155-13 exempted. approval from dph attached. | $100,000 |
| Dec 13, 2000 | Completed final sign-off Jun 2004 | 2178 41st Av | two story horizontal addition, add new bedrooms and bathsDetails
two story horizontal addition, add new bedrooms and baths | $100,000 |