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Greenport Construction

Building in San Francisco

Bush Street and the Cabrillo Street kitchen are San Francisco projects in our register.

Greenport is a design-build general contractor and millwork shop in San Rafael, founded in 2012 by brothers Eli and Jacob Froneberger, both raised in Marin. We hold California General Building license #1073941, and we mill our own casework at 47 Louise St, a short drive from San Francisco.

Book an on-site consultation in San Francisco

Permitting

The San Francisco Planning Department reviews land use and the Department of Building Inspection issues permits. Neighborhood notification and historic resource review apply to many buildings.

Housing stock

Victorians, Edwardians, and Marina-style flats, along with mid-century apartment buildings and infill. Party walls, light wells, and shared systems are the norm.

What decides the schedule

Neighbors and parking. Work happens in an occupied block with no staging, so schedule, noise windows, and street permits are managed as part of the job.

Common project types

  • Flat and single-family renovation
  • Kitchen and bath renovation with shop-built casework
  • Historic-sensitive interior work
  • Commercial and office build-outs

Built in San Francisco

Region
San Francisco
Shop
47 Louise St, San Rafael, CA 94901
License
#1073941, active through 3/31/2027
Hours
Monday to Sunday, 8am to 6pm
Reviews
5.0 from 17 Google reviews

San Francisco questions

Who issues building permits in San Francisco?
The San Francisco Planning Department reviews land use and the Department of Building Inspection issues permits. Neighborhood notification and historic resource review apply to many buildings.
What kind of work does Greenport do in San Francisco?
Flat and single-family renovation; Kitchen and bath renovation with shop-built casework; Historic-sensitive interior work; Commercial and office build-outs. We are a design-build general contractor and millwork shop, so drawings, permits, construction, and cabinetry come from one firm.
Do you work on San Francisco flats and condos?
Yes. Bush Street and the Cabrillo Street kitchen are in the register. Building rules, shared systems, and elevator scheduling get written into the plan before work starts.