Duncan Ballash
- Listed as
- architect, designer
- Firm
- Ehdd Architecture
- Based in
- San Francisco
- On San Francisco permits
- Aug 2005 to Sep 2026
21 permits since 2000 (architect on 20 permits, designer on 1 permit): 18 completed, 1 in progress, 2 never finaled.
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 |
|---|---|---|---|---|---|
| Sep 2, 2026 | In progress filed Sep 2026, not yet issued | 2601 Mariposa St | level 3: add walls + alter interior layout to provide separate tenant division on level 3.Details
level 3: add walls + alter interior layout to provide separate tenant division on level 3. | $195,000 | |
| Jul 31, 2023 | Completed final sign-off Apr 2024 | 900 Pennsylvania Av | Truebeck Construction | alteration of (e) large refrigeration/freezer spaces, demo of (e) u nits & (e) slabs ongrade under units, install of new insulated slab, new refrigeration/freezer units w/high piled storage racks, & associated mep. revision apn#202006138695Details
alteration of (e) large refrigeration/freezer spaces, demo of (e) u nits & (e) slabs ongrade under units, install of new insulated slab, new refrigeration/freezer units w/high piled storage racks, & associated mep. revision apn#202006138695 | $925,000 |
| Apr 5, 2022 | Completed final sign-off Apr 2022 | 2601 Mariposa St | Cahill Contractors Llc. | revision to approved permit 201809251300-s3. to revise names of 4 assembly spaces to clarify room use for a3/a2.Details
revision to approved permit 201809251300-s3. to revise names of 4 assembly spaces to clarify room use for a3/a2. | |
| Feb 24, 2022 | Completed final sign-off Jul 2023 | 900 Pennsylvania Av | Truebeck Construction | installation of a recessed floor scale. replacement of southern entry door in kind.Details
installation of a recessed floor scale. replacement of southern entry door in kind. | $47,000 |
| Dec 23, 2019 | Completed final sign-off Dec 2021 | 2601 Mariposa St | Cahill Const Service Inc | exterior signage including iluminated kqed logo on metal panelDetails
exterior signage including iluminated kqed logo on metal panel | $10,000 |
| Dec 23, 2019 | Completed final sign-off Dec 2021 | 2601 Mariposa St | Cahill Const Service Inc | exterior signage including building donor nameDetails
exterior signage including building donor name | $15,000 |
| Dec 23, 2019 | Completed final sign-off Dec 2021 | 2601 Mariposa St | Cahill Const Service Inc | exterior signage including kqed logo on curtain wallDetails
exterior signage including kqed logo on curtain wall | $4,000 |
| Feb 21, 2019 | Never finaled issued Feb 2019, no final | 151 03rd St | install temporary structural steel interface to support temporary video display wall for exhibition. interface is between display structure and existing building structure. maher n/aDetails
install temporary structural steel interface to support temporary video display wall for exhibition. interface is between display structure and existing building structure. maher n/a | $20,000 | |
| Jan 17, 2019 | Completed final sign-off Jun 2019 | 50 Beale St | Cahill Contractors Llc. | interior renovation of level 4 including light demolition and minor layout changes of office spaces, and new lighting. maher naDetails
interior renovation of level 4 including light demolition and minor layout changes of office spaces, and new lighting. maher na | $40,000 |
| Jan 16, 2019 | Completed final sign-off Jun 2019 | 50 Beale St | Cahill Contractors Llc. | interior renoavtion of (e) office space w/ light demo of private offices and installation of portable sound booths and open workstationsDetails
interior renoavtion of (e) office space w/ light demo of private offices and installation of portable sound booths and open workstations | $60,000 |
| Sep 25, 2018 | Completed final sign-off Apr 2022 | 2601 Mariposa St | Cahill Contractors Llc. | enlarge entry & expand footprint @ nw corner. add mezz at roof level for multipurpose meeting room, catering kitchen, lunch room & roof terrace, renovation of interior spaces, seismic improvements, mep upgrades. maher n/a.Details
enlarge entry & expand footprint @ nw corner. add mezz at roof level for multipurpose meeting room, catering kitchen, lunch room & roof terrace, renovation of interior spaces, seismic improvements, mep upgrades. maher n/a. | $24,000,000 |
| Jul 10, 2017 | Completed final sign-off Aug 2017 | 151 03rd St | permanent assembly permit including change in occupancy from a3 to a2 for 6 e spaces and change in occupant load/load factor in 2 spaces (levels 2/3) no physical changes to e building or fire l/s systems in this scope.all new revisions clouded in bold.changes due to 2016 code cycle/minor constructnDetails
permanent assembly permit including change in occupancy from a3 to a2 for 6 e spaces and change in occupant load/load factor in 2 spaces (levels 2/3) no physical changes to e building or fire l/s systems in this scope.all new revisions clouded in bold.changes due to 2016 code cycle/minor constructn | ||
| Feb 13, 2017 | Completed final sign-off Nov 2017 | 495 De Haro St | Matarozzi/Pelsinger Builders Inc. | tenant improvement- convert some (e) warehouse apce in building for use as a small brewery and small tap room/bar. work includes addition of a bathroom, ramp, railings, and egress doors. change of occupancy a-2, f-2 (building) and tap room (retail), maher n/aDetails
tenant improvement- convert some (e) warehouse apce in building for use as a small brewery and small tap room/bar. work includes addition of a bathroom, ramp, railings, and egress doors. change of occupancy a-2, f-2 (building) and tap room (retail), maher n/a | $150,000 |
| Jul 1, 2016 | Never finaled issued Jul 2016, no final | 151 03rd St | Service West Inc | installation and seismic bracing of shelving units on floors; basement, 1,2, 9 & 10 of the sfmoma are museum. ref pa 2012-1109-3897s (r1)Details
installation and seismic bracing of shelving units on floors; basement, 1,2, 9 & 10 of the sfmoma are museum. ref pa 2012-1109-3897s (r1) | $13,747 |
| Jun 17, 2016 | Completed final sign-off May 2017 | 151 03rd St | 7th & 8th fl: installation of new aluminum frame and millwork structure sliding wall panels of the sfmoma conservation studios for storage of artist materials. all storage portions of structure are <10' aff. revision pa 201211093897 to install only sliding panel structureDetails
7th & 8th fl: installation of new aluminum frame and millwork structure sliding wall panels of the sfmoma conservation studios for storage of artist materials. all storage portions of structure are <10' aff. revision pa 201211093897 to install only sliding panel structure | ||
| Apr 7, 2016 | Completed final sign-off May 2016 | 151 03rd St | temporary modification of extg sfmoma expansion freight elevator l including removal of stop at ground floor level 1 and infill of extg door opening with 2 hour fire rated partition. fire alarm modifications under seperate permit. elevator modifications to be submitted to state elevator divisionDetails
temporary modification of extg sfmoma expansion freight elevator l including removal of stop at ground floor level 1 and infill of extg door opening with 2 hour fire rated partition. fire alarm modifications under seperate permit. elevator modifications to be submitted to state elevator division | $4,000 | |
| Feb 19, 2016 | Completed final sign-off May 2016 | 151 03rd St | 7th floor:installation of a gypsum board ceiling in a 550 sq.ft. gallery on level 7, work to include modification to existing mechanical supply diffusers and new lighting. ref. to sfmoma expansion pa#201211093987 & temp. wall pa#201507302945. n/a ordinance #155-13Details
7th floor:installation of a gypsum board ceiling in a 550 sq.ft. gallery on level 7, work to include modification to existing mechanical supply diffusers and new lighting. ref. to sfmoma expansion pa#201211093987 & temp. wall pa#201507302945. n/a ordinance #155-13 | $20,000 | |
| May 1, 2014 | Completed final sign-off Feb 2015 | 4 Embarcadero Center | Gci, Inc | 33rd floor tenant improvement of a 600 sq ft area. no structural or plumbing work. demo & patching of interior doors. walls, ceilings, & finishes, new power/data outlets & lighting. compliance with ord 155-13 not rquiredDetails
33rd floor tenant improvement of a 600 sq ft area. no structural or plumbing work. demo & patching of interior doors. walls, ceilings, & finishes, new power/data outlets & lighting. compliance with ord 155-13 not rquired | $40,000 |
| Jun 19, 2013 | Completed final sign-off Aug 2014 | 140 New Montgomery St | Sc Builders, Inc | 21st floor tenant improvement, interior office remodel including mechanical, electrical & plumbing work, construction of non-rated partitoins & interior finishes.Details
21st floor tenant improvement, interior office remodel including mechanical, electrical & plumbing work, construction of non-rated partitoins & interior finishes. | $701,935 |
| Aug 1, 2008 | Completed final sign-off Jan 2009 | 500 Treat Av | San Francisco Commercial Builders Inc | #201-tenant improvement on partial 1st floor of building, minor wall demolition and construction, rerouting/capping of outlet switches and lighting, casework renovationDetails
#201-tenant improvement on partial 1st floor of building, minor wall demolition and construction, rerouting/capping of outlet switches and lighting, casework renovation | $110,000 |
| Aug 31, 2005 | Completed final sign-off Nov 2007 | 45 Lansing St | demolition of 1 story office building.Details
demolition of 1 story office building. |