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John Lum Architecture

Architecture firm · San Francisco
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johnlumarchitecture.com(415) 558-9550[email protected]LinkedIn3246 17th Street, San Francisco, CA 94110
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John Lum Architecture is an architecture firm with 11 tracked San Francisco building-permit projects on record, with the latest filing in that record 58 days ago. Its filings (Jan 2025 to Jun 2026) are concentrated in Inner Sunset and Haight Ashbury, 100% residential. A typical project in the record declares $10K–$600K. If you work at John Lum Architecture, claim this page to add a description.

Filed 58 days ago
#272
by SF filing activity
among SF architects & engineers, 90 days to Aug 23, 2026
11
projects
from 23 filings
6/16
active weeks
weeks with a filing (16 weeks to Aug 23, 2026)
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Permit-backed projects · PermitPipeline’s independent record
Neighborhood, filing date, scope and declared value are shown here. Exact addresses, owner names and mailing addresses, and full filing histories are part of the paid product.
Typical project$10K–$600K$25K typical1.5× the SF median ($17K)Last filed58 days agoCastro/Upper Market · Jul 20, 2026Last 90 days3 active2 newly filed

Filing activity · 16 weeks to Aug 23, 2026 · peak Jul 2026

MAY
JUN
JUL
AUG

Project mix · by use

Residential100%

Geography · by neighborhood

Inner Sunset38%
Haight Ashbury25%
Bernal Heights13%
Castro/Upper Market12%
Marina12%

Shared-project connections

#FirmPrimary roleSharedRelative
1Ashley & Vance EngineeringArchitecture2
2Acg Engineers IncEngineering1
3Double -D EngineeringEngineering1
4Gregory Paul WallaceArchitecture1
5LX EngineeringEngineering1
1Amador General Construction IncGeneral contractor2
2Christopher Gate Construction IncGeneral contractor2
3Atc MechanicalPlumbing contractor2
4AceGeneral contractor1
5Hunter Dale Builders Inc.General contractor1

Create a free account to see every firm on these projects and how many projects each one shares.

Owner and developer names, and the projects behind each connection, are part of the Leads product.

Firms that appear on the same San Francisco permit filings. Association on shared filings, not a proven working relationship.
State licenseNot connectedArchitects are licensed by the California Architects Board and engineers by BPELSG. Neither register is part of the San Francisco permit record, and we do not yet read them.
Repeat working relationships4 firmsFirms this one appears with on more than one project, out of 22 in total.
Permit speed—Too few filings with a recorded issue date to publish a median.

Frequently asked questions

How many SF projects does John Lum Architecture appear on?▾
PermitPipeline tracks 11 San Francisco building-permit projects for John Lum Architecture (Jan 2025 to Jun 2026). 3 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?▾
The median declared value across the 10 San Francisco projects John Lum Architecture has on record that state one is $25K (declared value on the permit filing, not contract value).
Which firms appear most often on the same filings as John Lum Architecture?▾
John Lum Architecture most frequently appears on the same San Francisco permit filings as Amador General Construction Inc, Ashley & Vance Engineering, Christopher Gate Construction Inc. 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 SF DBI filings.
Public aggregate — full project records are part of the paid leads product. Ranking, filing activity, project mix and geography were last recomputed Aug 23, 2026. Project counts, declared values and filing dates are read live from SF DBI filings.
How far back does this record go?▾
This page covers the recent permit record, not the firm’s full history. A firm’s earliest filing here means it was already working when our record opens, not that it started then.
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Sources

San Francisco Department of Building Inspection permit filings.

Record source

Read directly from SF DBI filings.

Photography

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