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ADU model collection

Find your starting point. Shape it around your property.

Compare six defined planning footprints and a new two-storey design study. Models with dimensions can enter the preliminary property check; visual studies start with a design discussion.

Check my property Configure an ADU

How to compare

  1. 1.Pick the smallest model that meets your daily needs.
  2. 2.Test a defined footprint on your property, or discuss a design study before setting its size.
  3. 3.Confirm local rules, utilities, access, engineering, and finishes before pricing.

Model images are design references. Final architecture, placement, engineering, price, and permit eligibility are property-specific.

Defined footprints + visual design studies

Find the right amount of home

Six models have defined dimensions for preliminary map testing. Two-Storey Retreat is a visual concept with size and room layout still to be developed.

Studio 400 ADU concept visualization400 sq ftView details

Modern compact

Studio 400

A compact, independent space designed for smaller yards and efficient everyday living.

Studio1 bath20 × 20

Best for: Guest suite, home office, or rental studio

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Cottage 600 ADU concept visualization600 sq ftView details

California cottage

Cottage 600

A true one-bedroom home with clear separation between living, sleeping, and service spaces.

11 bath20 × 30

Best for: Long-term rental or independent family housing

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Flex 750 ADU concept visualization750 sq ftView details

Flexible contemporary

Flex 750

A flexible two-room layout that adds capacity without requiring a full-size backyard residence.

21 bath25 × 30

Best for: Small families, shared office, or higher rental flexibility

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Courtyard 850 ADU concept visualization850 sq ftView details

Warm contemporary

Courtyard 850

A comfortable two-bedroom plan with added privacy for residents and overnight guests.

22 bath25 × 34

Best for: Multigenerational living or premium rental use

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Residence 1000 ADU concept visualization1,000 sq ftView details

Modern backyard home

Residence 1000

A full-size backyard residence with generous shared space and everyday storage.

22 bath25 × 40

Best for: Primary-quality family living or long-term rental

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Grand 1200 ADU concept visualization1,200 sq ftView details

Premium modern residence

Grand 1200

The largest standardized model, designed for properties where local rules and site conditions support it.

32 bath30 × 40

Best for: Larger families and high-capacity multigenerational living

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Two-Storey Retreat ADU concept visualizationNew · design studyView details

Warm contemporary · design study

Two-Storey Retreat

A two-storey steel-frame concept pairing a taller main volume with a lower side wing, warm wood cladding, light walls, and a low-pitched metal roof.

Two storeys · size and rooms to be defined. No validated footprint or price yet.

Best for: Exploring a custom two-storey design direction

View details

Finish levels

One plan, three ways to finish it

Package selection changes materials and specification—not whether the footprint fits. Exact inclusions and pricing are confirmed after feasibility and design review.

Level 1

Core

  • Durable core finishes
  • Curated fixture set
  • Essential appliance package

Level 2

Select

  • Upgraded finish palette
  • Expanded fixture choices
  • Enhanced kitchen specification

Level 3

Signature

  • Premium material options
  • Design-led selections
  • Expanded comfort upgrades

Ready for a useful first answer?

Start with your property, then talk through the details.

Review a preliminary site fit or request a property-specific conversation with the ADU California team.

AADU.zoneSteel-framed backyard homes

Property review, design, engineering coordination, permitting, steel framing, and construction support for California homeowners.

Preliminary online results are planning guidance, not a permit decision or site survey.

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Call our team(650) 400-7606EmailADUcaliforniainc@gmail.comADU California Inc. / ADU.zone1724 Junction Ave, Unit D, San Jose, CA 95112
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