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G & Sons Construction

ADU Construction in San Diego County

ADU Construction in San Diego County

Detached ADUs and garage conversions planned as complete independent living spaces.

Detached ADUs and garage conversions planned as complete independent living spaces.

A clear path from scope to finished work.

A clear path from scope to finished work.

Detached ADUs and garage conversions planned as complete independent living spaces.

Typical project scope

Site or garage assessment, structure, utilities, kitchen, bathroom, insulation, ventilation, access and finishes.

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How we bring it together.

How we bring it together.

01

Walkthrough & scope

02

Plan & coordinate

03

Build & close out

Planning and permitting coordination

Site access, utility connections, site work, design, fees, size and finishes affect an ADU budget. Bring a site sketch, access notes and plans if available. Detached ADUs use roughly $300/sq ft as an initial owner-supplied planning benchmark, not a quote.

Project questions

Does the detached benchmark apply to a garage conversion?

No. Garage conversions and shell / dry-in scopes need custom review. An 800-sq-ft detached benchmark is $240,000 before project-specific review; site work, utilities, design, fees and finishes can materially change the total.

What should I prepare?

Bring wide photos, approximate dimensions, priorities and any current plans, layouts, elevations and finish decisions. Review included and excluded work and owner-supplied material timing.

Can you promise a start date?

No. Timing, site feasibility and final scope require review. Ask how hidden conditions and change orders will be documented and approved.

G & Sons Construction Inc · Jamul, California · License #1098792

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Ready to talk through your project?

Ready to talk through your project?

Call (619) 990-4101

G & Sons Construction

(619) 990-4101 · gandsonsconstruction@gmail.com

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© 2026 G & Sons Construction Inc. · Privacy Policy · Terms & Conditions