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Greenport Construction

Building in Belvedere

Constrained sites and marine exposure. Material selection matters more here than anywhere in the county.

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 Belvedere.

Book an on-site consultation in Belvedere

Permitting

The City of Belvedere Planning and Building Department administers review, with design review required for essentially all exterior work on a small, tightly regulated island footprint.

Housing stock

Small lots with steeply stepped houses, a meaningful number of them historic, plus lagoon-side houses on the flat.

What decides the schedule

Site logistics. Narrow streets and stair-access houses limit staging, so sequencing and shop-built assemblies do more of the work than on-site fabrication.

Common project types

  • Renovation of historic and stepped hillside houses
  • Envelope and window replacement for marine exposure
  • Kitchens, baths, and full millwork packages
  • Structural and foundation upgrades
Region
Marin County
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

Belvedere questions

Who issues building permits in Belvedere?
The City of Belvedere Planning and Building Department administers review, with design review required for essentially all exterior work on a small, tightly regulated island footprint.
What kind of work does Greenport do in Belvedere?
Renovation of historic and stepped hillside houses; Envelope and window replacement for marine exposure; Kitchens, baths, and full millwork packages; Structural and foundation upgrades. We are a design-build general contractor and millwork shop, so drawings, permits, construction, and cabinetry come from one firm.
Why does shop-built millwork matter on a Belvedere project?
Because there is often nowhere to fabricate on site. We build casework at our San Rafael shop, deliver it finished, and install, which shortens the time trucks and crews occupy a narrow street.

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