Siol
Architecture firm · San Francisco permit activity
Architecture firm active in San Francisco construction, tracked from public building-permit filings.
#407
by SF filing activity
among SF architects & engineers, last 90 days
4
projects tracked
Jun 2025 to Jun 2026
3/16
active weeks
weeks with a filing (last 16)
Every Siol project: scopes, declared values, teams and filing history.
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$560K Bernal Heights renovation
Filed 1 month ago · Siol: architect
1st fl.interior remodel:(n) open kitchen /living room, powder room & bathroom. 2nd fl:interior renovation:(e) bedrooms,living room and…
No GC named
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$23K Pacific Heights renovation
Filed 2 months ago · Siol: architect
Create 1 new bathroom on 2nd/f
GC named · 1 other firm identified
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$300K Castro/Upper Market renovation
Filed Jun 2025 · Siol: architect
Extension at the rear of the property to include a new bathroom & laundry. removal of structural interior wall and load bearing exterior…
GC named · Architect identified · Engineer identified
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1 more
Siol 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.
4 project records for Siol: addresses, values, project teams
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Middle 50% of declared values: $270K–$560K (median $300K)
Most recent filing: Bernal Heights · Jun 30, 2026
2 active · 2 newly observed last 90 days
Filing activity · last 16 weeks
APR
MAY
JUN
JUL
2
active projects (last 90d)
2
newly observed (last 90d)
Jun 2026
peak month
Project mix · by use
Residential100%
Geography · by neighborhood
Bernal Heights25%
Castro/Upper Market25%
Pacific Heights25%
Presidio Heights25%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | Barringer Design | Architecture | 1 | |
| 1 | Barton Builders | General contractor | 1 | |
| 2 | Design Line Construction | General contractor | 1 | |
| 3 | Matarozzi/Pelsinger 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 Siol filed?▾
PermitPipeline tracks 4 San Francisco building-permit projects for Siol (Jun 2025 to Jun 2026). 2 had filing activity in the last 90 days.
Does Siol work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of Siol'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 Siol work?▾
25% of Siol's tracked San Francisco projects are in Bernal Heights.
What is a typical Siol project worth?▾
Across the 4 tracked projects with a declared value, Siol averages $288K per project (declared value on the permit filing, not contract value).
Which firms does Siol work with most often?▾
Siol most frequently appears on the same San Francisco permit filings as Matarozzi/Pelsinger Builders Inc., Design Line Construction, Barton Builders. Appearing together indicates association on shared filings, not a proven working relationship.
Is Siol an architecture firm?▾
Siol 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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