Auburn ADU

1 Bed

1 Bath

610 sqft

detached

Estate 600 ADU in Claremont, CA – photo 1 of 15

Estate 600 ADU in Claremont, CA – photo 2 of 15

Estate 600 ADU in Claremont, CA – photo 3 of 15

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ADU DesignArchitectural PlansStructural EngineeringTitle 24Civil EngineeringPlan Check FeesBuilding & Fire FeesWater & City FeesNotarizationCounty RecordingAgency CoordinationZoning VerificationProject ManagementCity InspectionsCertificate of OccupancyTurn-Key ConstructionPremium FinishesUtility ConnectionsWeekly UpdatesFinancingExterior DesignInterior DesignPre-ConstructionFinal WalkthroughWarranty SupportADU DesignArchitectural PlansStructural EngineeringTitle 24Civil EngineeringPlan Check FeesBuilding & Fire FeesWater & City FeesNotarizationCounty RecordingAgency CoordinationZoning VerificationProject ManagementCity InspectionsCertificate of OccupancyTurn-Key ConstructionPremium FinishesUtility ConnectionsWeekly UpdatesFinancingExterior DesignInterior DesignPre-ConstructionFinal WalkthroughWarranty Support

Designed to feel like home.

Auburn started as our Estate 600 and was customized for this home.

Project Timeline Overview

0 weeks

Plans

0 weeks

Permits

0 weeks

Construction

Week 1

Site Prep & Groundwork

Week 2

Foundation & Footings

Week 3

Concrete Pour

Week 4

Framing & Rough-Ins

Week 5

Exterior Shell

Week 6

Insulation & Drywall

Week 7

Interior & Exterior Finish

Week 8

Cabinets & Countertops

Week 9

Interior Touch-ups & Final Inspection

Site work on this lot

No surprises. Here’s why.

Our Formal Property Analysis found all of this before they signed.

Step 1 of 1

Found before we started

Our architect and engineers checked this lot before we designed anything. Finding these early is how we avoid surprises during the build.

Utility lines in the trench at one of our jobs

Longer utility runs (66 feet)

What we found during the FPA: Sewer, water and power lines had to run farther than usual.
How finding it early helped: We mapped the route and checked the sewer’s slope over that distance, then sized the pipe and wire for the length.
What it meant for this homeowner: The yard was dug once, and every line works the way it was planned.

The new electrical panel going into the house wall, Jan 22, 2026

Upgraded electrical panel

What we found during the FPA: The electrical panel had to power two homes.
How finding it early helped: Our load calculation showed what the panel could carry, so any upgrade and the utility’s scheduling started early, not after the walls went up.
What it meant for this homeowner: Power for both homes from day one, with no wait on the utility.

A sewer cleanout at one of our jobs

Sewer scope

What we found during the FPA: The existing sewer line needed a camera check before the ADU could tie in.
How finding it early helped: The camera showed the line’s condition before we connected, so any repair was planned in, not found under a new yard.
What it meant for this homeowner: A sewer line ready for two homes, and a finished yard left alone.

Concrete cut for the trench at one of our jobs
Concrete cut and poured back (348 sq ft)
Concrete cut for the trench, then poured back.
Small demo work
Rain garden

Our team

Your team, from first visit to move-in.

One team. Every step.

Plan
- Serge MayerHead ArchitectWalks your lot and draws your plans. Civil engineering and surveying background.
Permits
- Mary CoonDirector of OperationsKeeps every step moving: permits, schedule, people.
- Elsa TomasProject AdminYour updates and documents, in one place.
Build
- Tom GibsonDirector of Construction50+ years building. Sets how every ADU gets built.
- Dusty GravattSenior Construction Mgr.Runs the job site and the crews.
- Jose CervantesProject ManagerRuns your schedule from permit to move-in.
Every step
- Adam StewartPresident & FounderStands behind every build.
- Edgar CureMarketing & Tech Mgr.Builds the tools that show you every number.