Wing On Construction Inc
- Based in
- San Leandro
- On San Francisco permits
- Jul 2019 to Jan 2026
- Last 24 months
- 4 permits filed
20 permits since 2000: 5 completed, 8 in progress, 7 never finaled.
Of the 7 never-finaled permits, 5 are 3 to 5 years old, 2 are 5 to 10 years old.
This is the city’s permit record, not a license check. It does not show whether the state license is active, bonded or insured. How to read these records
Permits filed each year
How long permits take
Each point is the quarter the permits were filed, for all building permits across San Francisco. A median counts only permits that have finished, so the shaded recent quarters look faster than they will end up: their slow permits have not finished yet. Hover a point for the slowest 10%. Gaps mean fewer than 5 permits. A rise in the issue line is the city’s review backlog, not the contractor.
Most recent permits
| Filed | Outcome | Address | Work described on the permit | Declared cost |
|---|---|---|---|---|
| Jan 5, 2026 | In progress filed Jan 2026, not yet issued | 672 Hamilton St | revision to pa#: 202107295380 and 202401184228. 1) retaining wall at grid line e. 2) drawing index s-2 1st flr foundation plan and detail.Details
revision to pa#: 202107295380 and 202401184228. 1) retaining wall at grid line e. 2) drawing index s-2 1st flr foundation plan and detail. | |
| Oct 23, 2025 | In progress issued Oct 2025 | 672 Hamilton St | revision to pa# 202107295380 & adu pa# 202110180694. propsed envelope expnsions. 1st floor exterior entry infill. 2nd floor lightwell infill. 3rd floor envelope expension.Details
revision to pa# 202107295380 & adu pa# 202110180694. propsed envelope expnsions. 1st floor exterior entry infill. 2nd floor lightwell infill. 3rd floor envelope expension. | $10,000 |
| May 21, 2025 | In progress issued Jan 2026 | 249 Mississippi St | erect a four-story, type 5, residential building with two units.Details
erect a four-story, type 5, residential building with two units. | $750,000 |
| May 19, 2025 | In progress issued Jan 2026 | 249 Mississippi St | demolish a two-story, type 5, single family building.Details
demolish a two-story, type 5, single family building. | $12,150 |
| Apr 5, 2024 | In progress filed Apr 2024, not yet issued | 668 Hamilton St | revision to pa# 202107295403 proposed envelope expansions include 2nd floor and 3rd floor envelope expansion.Details
revision to pa# 202107295403 proposed envelope expansions include 2nd floor and 3rd floor envelope expansion. | $10,000 |
| Apr 26, 2023 | Completed final sign-off Oct 2024 | 51 Kissling St | 1st fl add family rm, home office, 1 full bath and laundry. 2nd fl add interior stairs. add patio at rear. remove deck at deck.Details
1st fl add family rm, home office, 1 full bath and laundry. 2nd fl add interior stairs. add patio at rear. remove deck at deck. | $85,000 |
| Mar 27, 2023 | Never finaled issued Sep 2023, no final | 69 Hill St | soft story retrofit cebc appendix a-4. to comply with nov 201993661Details
soft story retrofit cebc appendix a-4. to comply with nov 201993661 | $90,000 |
| Dec 7, 2022 | Never finaled issued Apr 2023, no final | 666 Hamilton St | shoring for proposed development. ref bpa#202107295380. to comply with nov #202293899 dated 9/30/2022Details
shoring for proposed development. ref bpa#202107295380. to comply with nov #202293899 dated 9/30/2022 | $5,000 |
| Apr 1, 2022 | Completed final sign-off Sep 2023 | 75 Corona St | basement convert to office & game room, (1) bathroom. 1st fl convert (1) bathroom into (1.5) bathrooms.Details
basement convert to office & game room, (1) bathroom. 1st fl convert (1) bathroom into (1.5) bathrooms. | $40,000 |
| Oct 18, 2021 | In progress issued Sep 2025 | 672 Hamilton St | new adu proposed with new single family residence. this project travels with #2021.0729.5380. (lot a)-new construction(672 hamilton st) approved conditional use: 2020-007383cua 672 hamilton st new construction permit application #2021.0729.5380Details
new adu proposed with new single family residence. this project travels with #2021.0729.5380. (lot a)-new construction(672 hamilton st) approved conditional use: 2020-007383cua 672 hamilton st new construction permit application #2021.0729.5380 | $60,000 |
| Oct 18, 2021 | In progress issued Sep 2025 | 662 Hamilton St | new 830 square foot, 1 bedroom adu at 1st floor of new construction single-family home. this permit trabels with #2021.0729.5383. approved conditional use: 2020-007383cua demolition permit application #2021.0614.2334 662 hamilton st new construction permit application #2021.0729.5383Details
new 830 square foot, 1 bedroom adu at 1st floor of new construction single-family home. this permit trabels with #2021.0729.5383. approved conditional use: 2020-007383cua demolition permit application #2021.0614.2334 662 hamilton st new construction permit application #2021.0729.5383 | $70,000 |
| Oct 18, 2021 | In progress issued Sep 2025 | 668 Hamilton St | new 1045 square foot, 2 bedroom adu at 1st foor of new construction single-family home. this permit travels with #2021.0729.5403. approved conditional use: 2020-007383cua demolition permit application #2021.0614.2334 668 hamilton st new construction permit application #2021.0729.5403Details
new 1045 square foot, 2 bedroom adu at 1st foor of new construction single-family home. this permit travels with #2021.0729.5403. approved conditional use: 2020-007383cua demolition permit application #2021.0614.2334 668 hamilton st new construction permit application #2021.0729.5403 | $80,000 |
| Aug 2, 2021 | Completed final sign-off Feb 2023 | 3937 26th St | in-kind remodeling of 1 kitchen(s) in 1st fl installing gas line. need a "green tag" for electrical service equipment.Details
in-kind remodeling of 1 kitchen(s) in 1st fl installing gas line. need a "green tag" for electrical service equipment. | $20,000 |
| Jul 29, 2021 | Never finaled issued Dec 2022, no final | 672 Hamilton St | erect 3 stories single family residential unit, type v construction, new building on lot: 6115/040Details
erect 3 stories single family residential unit, type v construction, new building on lot: 6115/040 | $230,000 |
| Jul 29, 2021 | Never finaled issued Dec 2022, no final | 662 Hamilton St | erect 3 stories, no basement, type v-b, single family residential unit, new building on lot: 6115/040.Details
erect 3 stories, no basement, type v-b, single family residential unit, new building on lot: 6115/040. | $260,000 |
| Jul 29, 2021 | Never finaled issued Dec 2022, no final | 668 Hamilton St | erect 3 stories single family residential unit, type v construction, new building on lot: 6115/040Details
erect 3 stories single family residential unit, type v construction, new building on lot: 6115/040 | $220,000 |
| Apr 20, 2021 | Never finaled issued Apr 2021, no final | 3937 26th St | in kind bathroom remodeling, no change to layout of wals and openings.Details
in kind bathroom remodeling, no change to layout of wals and openings. | $8,000 |
| Apr 20, 2021 | Never finaled issued Apr 2021, no final | 3937 26th St | in kind replacement of 6 ft iron gate at front entry of house (two leaves gate)Details
in kind replacement of 6 ft iron gate at front entry of house (two leaves gate) | $1,600 |
| Jan 26, 2021 | Completed final sign-off Mar 2021 | 223 Waller St | in-kind kitchen remodel. no changes to the floor plan or walls. new cabinets, appliances, hood and countertop.Details
in-kind kitchen remodel. no changes to the floor plan or walls. new cabinets, appliances, hood and countertop. | $7,000 |
| Jul 25, 2019 | Completed final sign-off Jan 2022 | 160 Belvedere St | repair of extg stairs and window replacement. replace 6 windows and one door within extg openings w/(n) wood windows. replace extg fence with gates. no interior alteration.Details
repair of extg stairs and window replacement. replace 6 windows and one door within extg openings w/(n) wood windows. replace extg fence with gates. no interior alteration. | $3,000 |