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Warm contemporary · concept visualization

Courtyard 850

850 sq ft · 2 bedrooms · 2 bathrooms · 1 story

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

Best for: Multigenerational living or premium rental use. Final architecture, room arrangement, engineering, placement, price, and permit eligibility remain property-specific.

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Courtyard 850 exterior concept in a California backyard
Exterior · 1 of 5Open full-size image (new tab)

Concept imagery. Final materials, openings and room arrangements are confirmed during project design.

OverviewFloor Plan & Property FitAll imagesSpecificationsCost breakdownPlans & DownloadsQuestions

Defined planning footprint

The size and spaces at a glance.

These dimensions connect the model catalog to the preliminary map test. They do not prescribe a room layout or replace architecture, engineering, surveys, utility coordination, or agency review.

Area

850 sq ft

Footprint

25 × 34 ft

Bedrooms

2

Bathrooms

2

Two bedrooms

Two bathrooms

Indoor–outdoor living focus

Preliminary project range

$449,500–$602,000

Baseline ADU California Inc. planning estimate using this model, standard finishes, steel framing, and no property-specific site or utility adders. It is not a bid or contract price.

Refine cost assumptions

Preliminary timeline

Design & engineering

1–2 months

Permitting

2–4 months

Construction

7–10 months

Total planning range

10–16 months

Actual timing depends on jurisdiction workload, corrections, property conditions, utility coordination, design changes, and construction scope.

Floor plan + property fit

See how the home can live before testing the property.

Explore the feel of the bedrooms, living space, kitchen, and bathrooms in this furnished concept. The catalog planning footprint is 25 × 34 ft; the illustration is not to scale. Final room geometry and architecture are developed after setbacks, access, utilities, structure, privacy, and owner priorities are confirmed.

Furnished top-down concept

Courtyard 850

Concept · not to scale
Bedrooms
2
Bathrooms
2
Model area
850 sq ft
Planning footprint
25 × 34 ft
Furnished planning concept — not to scale or for construction. The model area and planning footprint shown are catalog targets. Final room geometry, doors, windows, furnishings, and dimensions are confirmed through property-specific design and professional review.

01

Buildable rectangle

Confirm that the property can support the 25 × 34 ft building footprint after applicable setbacks, easements, lot coverage, separation, and site constraints are reviewed.

02

Construction access

Verify delivery, staging, excavation, concrete, framing, and equipment access before treating the concept price as project-specific.

03

Utilities

Locate and evaluate electrical service, sewer, water, gas or electrification strategy, and any utility upgrades or trenching required for the proposed placement.

04

Local approval path

Confirm the jurisdiction, current ADU standards, submittal requirements, agency review path, and any property-specific fire, drainage, tree, geologic, or survey requirements.

Property qualification

Use the actual address before choosing the final model.

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Visual direction

See the character, finishes, and structural idea.

These visualizations establish the architectural character, material direction, and spatial feel of the model. Final architecture and construction documents remain property-specific.

Courtyard 850 two-bedroom interior concept

Interior

Concept visualization; final design is project-specific.

Courtyard 850 kitchen concept

Kitchen

Concept visualization; final design is project-specific.

Courtyard 850 bathroom concept

Bathroom

Concept visualization; final design is project-specific.

Courtyard 850 light-gauge steel framing concept

Steel frame

Concept visualization; final design is project-specific.

Specifications & selections

Know the model. Define the details.

Courtyard 850 is a starting point for your project. The catalog defines its planning size and room counts; the specifications below show what is resolved with your property and written proposal.

Structure
Steel-frame design direction. Member sizes, connections and lateral design require project-specific engineering.
Foundation
Foundation type and dimensions are selected after site and soil review.
Roof & exterior
The gallery shows the architectural direction. Roofing, cladding, colors and opening schedules are selected during design.
Kitchen
Cabinet layout, countertops, appliance models and allowances are established in the written scope.
Bathrooms
Fixture models, tile, waterproofing and accessibility choices are confirmed with the final layout.
Interior finishes
Flooring, paint, doors, trim and hardware selections are documented before construction pricing is finalized.
Heating, cooling & hot water
Equipment type, capacity and location require energy design and utility review.
Electrical, water & sewer
Connection locations, service capacity, trenching and upgrade requirements are property-specific.
Laundry & storage
Location, appliance clearances and storage requirements are resolved with the room plan.
Height & ceiling dimensions
Not established by the catalog footprint; confirmed in the architectural elevations and sections.
Explore finishes for Courtyard 850

Budget transparency

What the planning budget covers.

These allowances use the same ADU California Inc. calculator as the total above. They assume standard finishes and steel framing, with no address, site-condition adders or utility upgrades selected. They are not a fixed-price inclusion list.

Building constructionSteel framing and standard-finish assumptions in the planning calculator.
$337,500 – $452,500
Site-work allowanceBaseline allowance; no slope, demolition or tight-access adjustments selected.
$17,000 – $22,500
Design & engineering allowancePlanning allowance, not a professional-services quote.
$30,500 – $40,500
Permit & agency fee allowanceNo city selected. Confirm actual charges with the responsible agencies.
$23,500 – $31,500
Contingency allowanceA planning reserve; not a guarantee against cost changes.
$41,000 – $55,000
Utility upgradesNo upgrade allowance selected. This does not mean connections or upgrades are free.
Not assessed
Total preliminary project range
$449,500 – $602,000

Resolve before approving your proposal

Utility connections and upgrades, demolition, grading, drainage, retaining walls, access, fire requirements, solar, surveys, specialty reports, landscaping, decks, furniture, financing costs and owner-selected upgrades must be reviewed separately. Your signed scope identifies actual inclusions, exclusions and allowances.

Plans & documentation

See what is available for Courtyard 850.

Available on this page

Model presentation

Exterior and interior concepts, planning dimensions, bedroom and bathroom counts, a schematic layout, preliminary costs and timelines.

Review model overview

Project-specific development

Permit & construction set

Site plan, dimensioned floor plans, elevations, sections, structural calculations, foundation design, energy documentation and coordinated utility plans require professional development for your project.

Not published for download

CAD, Revit & 3D tours

No downloadable CAD/Revit package or interactive walkthrough is currently offered for this model. Ask which files can be prepared, their scope, delivery timing and usage rights.

Before you choose

Questions about Courtyard 850.

Will this model fit my backyard?

Start with the 25 × 34 ft planning footprint. The property review must also account for setbacks, easements, building separation, access, utilities and other site constraints. The footprint alone does not establish eligibility.

Can I change the layout or finishes?

Discuss your room arrangement, window orientation, kitchen, bathroom and finish preferences during design. Changes can affect the footprint, engineering, cost and approval path.

Are the pictures and layout construction drawings?

No. Images illustrate a design direction and the schematic is for planning discussions. Construction requires coordinated project-specific documents and approvals.

Is the displayed budget a turnkey quote?

No. It is a preliminary calculator range with the assumptions and allowances shown above. A written proposal follows property, scope, utility and design review.

What should I send to get started?

Provide the property address, intended use, preferred model and any existing survey, site plan or utility information. You can begin even if those documents are not yet available.

San Jose model fit

Would the Courtyard 850 fit a San Jose property?

Compare this planning footprint with San Jose lot-size rules, setbacks, City-versus-State standards, preapproved-plan options, and the address-based property check.

San Jose ADU models & property fit

Defined concept range

Compare another model concept.

View model collection
  • Studio 400400 sq ft
  • Cottage 600600 sq ft
  • Flex 750750 sq ft
  • Residence 10001,000 sq ft
  • Grand 12001,200 sq ft
  • Two-Storey RetreatSize to be defined

Property-specific next step

Test the 25 × 34 ft footprint before choosing the final scope.

The result is preliminary and must be verified against source data, local rules, site conditions, and professional review.

Check if this model fits my property

Let’s build your ADU

Your property.
Your next chapter.

Explore the possibilities for your California property.

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Architectural concept of a modern California ADU in a landscaped garden, shown in natural daylight
Design concept

Let’s talk about your project.

(650) 400-7606sales@adu.zone

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San Jose, CA 95113
(650) 400-7606Get directions

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1990 N California Blvd, 8th Floor
Walnut Creek, CA 94596
(925) 744-5040Get directions
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