Redwood City Family Home Expansion - completed project image

A major rear addition that gave a small Redwood City home more room to live, work, and grow without losing the parts of the house the family already knew.

Home Addition • Major Remodeling

Redwood City Family Home Expansion

Redwood City, CA

Year

Duration

Size

Project Type

Location

PROJECT SNAPSHOT

Redwood City, CA

Home Addition • Major Remodeling

2,800 sq ft

9 Months

2025

THE STORY

The roof connection changed the plan in real time.

The kitchen was supposed to stay.
The roof had other plans.

The original design kept the existing kitchen untouched while the new addition rose behind it, including a living room with a ceiling more than 15 feet high.

Once framing began, the actual roof heights and beam conditions did not match the connection shown on the plans. To create the correct pitch and tie the new roof into the house, part of the roof above the kitchen had to be opened.

Then the weather changed.

A sudden storm reached the exposed area and damaged the kitchen below. We immediately removed the wet insulation and cabinets, brought in drying equipment, protected the open structure, and reorganized the work so framing could continue safely.

Framed interior rooms with plywood wall sections and exposed ceiling framing.

Worker installing flexible duct inside open wall and ceiling framing.

Open framed interior with ladder, ceiling joists, and electrical boxes.

Framed rear addition with stacked plywood and workers around the site.

Worker kneeling with level near open framing and plywood subfloor.

New framed walls rising around an addition with a worker at right.

Large plywood floor deck with plans and workers in the background.

Backyard excavation with wood footing forms and workers setting layout.

Worker standing near foundation forms with construction drawings in foreground.

The construction story.

BEHIND THE BUILD

Foundation forms and plans set for the rear addition.

Footing forms prepared across the new expansion footprint.

New subfloor decked across the addition footprint.

Wall framing begins around the expanded floor plan.

Field layout checked around an existing floor opening.

Exterior wall framing defines the new rear addition.

Interior framing and ceiling rough-ins before wall closure.

HVAC duct routing through the framed interior.

Open framing complete through the new interior rooms.

PHASE 01

Building the New Footprint

We started with excavation, foundation, and structural framing. The new bedrooms, office, primary suite, and high-ceiling living room went up from the ground while the existing house stayed connected to the work.

PHASE 02

Working Through the Roof

The new roof pitch didn't align cleanly with the existing structure, so we adjusted the framing in the field. Working section by section, we connected the roof properly while keeping the house protected during construction.

PHASE 03

Rebuilding the Home Around It

New plumbing, electrical, HVAC, and fire sprinklers ran throughout the expanded areas. Once the walls closed, we coordinated drywall, paint, doors, trim, flooring, and bathroom finishes so the old and new parts read as one home.

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The finished home now has a large high ceiling living room, a dedicated office, a new primary suite, two additional bedrooms, and fully updated plumbing, electrical, HVAC, and fire protection. The expansion changed how the family can use the house every day, while the careful roof connection and interior coordination kept the addition from feeling separate from the original home.

Bringing It Together