GPJ ResidentialGPJ Residential

GPJ Residential

Residential Engineering & Construction for Bay Area Homes

From decks and ADUs to additions, structural repairs, permits, and construction, we help homeowners move projects from idea to completion.

Serving Bay Area Homeowners for Over 40 Years

Bay Area home with a tasteful addition, modern deck, and backyard ADU

Services

Residential project types we help with

New elevated residential deck with sturdy framing and code-compliant rails

Decks

New decks, deck repairs, rebuilds, structural engineering, permit support, and construction services.

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Detached backyard ADU behind a Bay Area home

ADUs

Detached ADUs, garage conversions, attached ADUs, junior ADUs, and multifamily ADU support.

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Bay Area home with a tasteful residential addition

New Homes & Additions

Structural/civil engineering, permit support, additions, remodels, and ground-up residential projects.

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Residential structural drawings and project notes on a desk

Structural & Civil Engineering

Residential engineering support for foundations, framing, retaining walls, drainage/site considerations, calculations, and permit corrections.

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Residential deck framing prepared for professional repair

Repairs & Retrofits

Structural repairs, seismic-related upgrades, foundation issues, deck/balcony repairs, and existing-condition support.

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Experience

Why choose GPJ Residential

Serving Bay Area Homeowners for Over 40 Years

Established residential engineering and construction for Bay Area homes — from first questions through permits and building.

Licensed professional engineering

Residential structural and civil engineering for homes, with a practical view of how the work gets permitted and built.

Licensed contractor / building perspective

Engineering recommendations are informed by how residential work is actually built, inspected, and lived in.

Structural and civil experience

Support for foundations, framing, repairs, site considerations, and permit documentation when the project needs it.

Practical solutions

Clear next steps for homeowners who may not yet know whether they need an engineer, builder, designer, or permit help.

Planning through construction

Support from early project review and permitting through repairs or construction, as appropriate for the scope.

Process

A straightforward process

1

Tell us about your project

Share the property, what you are planning, and the kind of help you need.

2

We review the property, scope, and available information

We look at the project type, site conditions you describe, and the documents or photos you can provide.

3

We recommend the right path

You get a practical recommendation for engineering, permitting, repair, or construction — or a mix of those.

4

We support the work

We stay with the project through plans, permits, repairs, or construction as appropriate.

Have a residential project or structural concern?

Start with a project inquiry. Tell us what you are planning, where the property is located, and what kind of help you need.

Start a Project