John Lum Architecture
Architecture firm · San Francisco permit activity
Architecture firm active in San Francisco construction, tracked from public building-permit filings.
#333
by SF filing activity
among SF architects & engineers, last 90 days
8
projects tracked
Jan 2025 to Jun 2026
2/16
active weeks
weeks with a filing (last 16)
Every John Lum Architecture project: scopes, declared values, teams and filing history.
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$272K Castro/Upper Market renovation
Filed 1 month ago · 2 filings · John Lum Architecture: architect
Revision to. heating & cooling systems changed to 2 outdoor heat pumps with ducted multi-split system. domestic hot water heater revised to…
GC named · Architect identified
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$1.1M West of Twin Peaks tenant improvement
Filed 8 months ago · John Lum Architecture: architect
Change of use tenant improvement & minor expansion (nw eleveation). (n) retail health services ophthalmology clinic & relocated retail &…
GC named · 3 engineers identified
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$10K Inner Sunset renovation
Filed 1 month ago · John Lum Architecture: architect
Revision to existing approved bpa &. installation of (4) new windows and removal of (2) silver aluminum single-pane windows. additional…
GC named · 1 other firm identified
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5 more
John Lum Architecture projects with project intelligence
Scopes, values, teams and filing history for every one
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Neighborhood, filing date, scope and declared value are shown here. Exact addresses,
owner and contact details and full filing histories are part of the paid product.
8 project records for John Lum Architecture: addresses, values, project teams
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Middle 50% of declared values: $10K–$1.1M (median $272K)
Most recent filing: Castro/Upper Market · Jun 17, 2026
2 active · 1 newly observed last 90 days
Filing activity · last 16 weeks
APR
MAY
JUN
JUL
2
active projects (last 90d)
1
newly observed (last 90d)
Jun 2026
peak month
Project mix · by use
Residential100%
Geography · by neighborhood
Inner Sunset43%
Bernal Heights15%
Castro/Upper Market14%
Haight Ashbury14%
Presidio Heights14%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | Ashley & Vance Engineering | Architecture | 2 | |
| 2 | Mhc Engineers | Engineering | 1 | |
| 3 | Sattart Structural Engineer | Engineering | 1 | |
| 4 | Acg Engineers Inc | Engineering | 1 | |
| 5 | Gregory Paul Wallace | Architecture | 1 | |
| 1 | Christopher Gate Construction Inc | General contractor | 2 | |
| 2 | Singular Builders | General contractor | 1 | |
| 3 | Ace | General contractor | 1 | |
| 4 | Amador General Construction Inc | General contractor | 1 | |
| 5 | Hunter Dale Builders Inc. | General contractor | 1 |
Firms that appear on the same San Francisco permit filings. Association on shared filings, not a proven working relationship.
Frequently asked questions
How many SF projects has John Lum Architecture filed?▾
PermitPipeline tracks 8 San Francisco building-permit projects for John Lum Architecture (Jan 2025 to Jun 2026). 2 had filing activity in the last 90 days.
Does John Lum Architecture work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of John Lum Architecture's projects are commercial and 100% are residential (multifamily, small residential, or single-family). Based on permit records, not self-reported.
Where in San Francisco does John Lum Architecture work?▾
38% of John Lum Architecture's tracked San Francisco projects are in Inner Sunset.
What is a typical John Lum Architecture project worth?▾
Across the 9 tracked projects with a declared value, John Lum Architecture averages $699K per project (declared value on the permit filing, not contract value).
Which firms does John Lum Architecture work with most often?▾
John Lum Architecture most frequently appears on the same San Francisco permit filings as Christopher Gate Construction Inc, Ashley & Vance Engineering, Singular Builders. Appearing together indicates association on shared filings, not a proven working relationship.
Is John Lum Architecture an architecture firm?▾
John Lum Architecture is listed as an architecture firm on its San Francisco permit filings. Roles on this profile are derived from the role each firm holds on public DOB filings.
Public aggregate — full project records are part of the paid leads product. Updated daily from SF DBI filings.
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