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HomeAccessory Dwelling Unit Adu House Plans672 Sq Ft Charming One-Bedroom Carriage Home with Spacious Garage and Modern Living

672 Sq Ft Charming One-Bedroom Carriage Home with Spacious Garage and Modern Living

Plan #X7318-A · 672 sq ft · 1 bd · 1 ba · 2.0 story · 2-car

Accessory Dwelling Unit Adu House PlansCarriage House Plans Garage Apartment Plans Adu DesignsCottageTwo Story
★★★★★Read 687+ verified reviews →
Estimated cost to build the home
$100k – $170kFree zip estimate ↓
Have questions about this plan? Book a free plan review with David →
David Park · Residential Plan Advisor · 30+ years
672
Sq Ft
1
Beds
1
Baths
2.0
Stories
2
Garage
10′
Ceilings
“We kept coming back to this plan — it just felt right for our family. The flow between the kitchen and living room works.”Verified buyer · Trustpilot
40+
Years in Business
3,000+
Plans in Catalog
10%
Beat Any Competitor Price
Expert
In-House Design Team
Quick self-check · 30 seconds

Is this the right plan for you?

Most regret comes from buying a plan that doesn't fit your life. Skim this before you decide.

Great fit if you…
  • Building an accessory dwelling unit on a small lot (33 ft 6 in by 28 ft footprint)
  • Need rental income or a guest house separate from the main residence (self-contained 672 sq ft unit)
  • Want a 2-car garage for storage or vehicles (672 sq ft garage below living space)
  • Prefer a compact, efficient layout with minimal exterior footprint
  • Need second-floor laundry for convenience in a small space
! May not be the best fit if you…
  • Need more than 1 bedroom—this plan has only 1 bedroom
  • Want a single-story layout—this is a two-story carriage design
  • Need multiple bathrooms—this plan has 1 full bath only
  • Require a large open floor plan (672 sq ft total living area is compact)
  • Want a main-floor master suite—the bedroom is on the second floor

This plan tends to appeal to:

ADU BuildersAccessory Dwelling Unit OwnersVacation Home BuildersRental Property InvestorsDownsizersFirst-Time Builders
Think this is the one? Choose your package above and check out when you're ready.Yes — this plan fits me →

Floor Plans

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Main Level — 672 sq ft · 35.00′W × 28.00′D

↓ Free Sample
X7318-A The Wilbury 24x28 House Garage Floor Plan

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PDF Set
Build as-is or minor changes
$975
  • Complete working drawings (PDF)
  • Instant delivery to your email
  • Unlimited build license included
  • Copyright release — print as needed
  • AutoCAD DWG files not included
Chief Architect Files
$1,950
  • Complete construction drawings
  • Unlimited build license included
  • Copyright release — print as needed

About this plan

Wilbury Adu 1 is a carriage-style home design providing 672 sq ft of heated living space situated above a 672 sq ft two-car garage. With a footprint width of 33 ft 6 in and a depth of 28 ft, this structure is configured to maximize secondary living capacity on smaller lots. The design serves as a self-contained unit, often utilized for accessory dwelling units, guest accommodations, or rental properties.

The second-floor living area utilizes an open-concept layout that integrates the kitchen, dining, and keeping room zones to maintain clear sightlines. A central kitchen island serves as a primary work surface and eating bar, effectively delineating the kitchen from the adjacent living area. The floor plan includes a private bedroom equipped with a walk-in closet and direct access to a full bathroom, alongside a dedicated second-floor laundry space for operational efficiency.

Vertical volume is prioritized throughout the interior, with a 10 ft ceiling height on the first floor and 9 ft ceilings on the second floor. These dimensions contribute to a consistent sense of scale across both levels. The exterior profile is defined by a 10:12 roof pitch and a maximum building height of 24 ft 9 in, establishing a traditional carriage house aesthetic that complements various architectural styles.

Structural integrity is supported by a 2-car garage on the ground level, which provides significant utility for storage or vehicle protection while doubling the total square footage of the building's footprint to 1,418 sq ft. The inclusion of a 74 sq ft deck offers an outdoor extension of the living space, supporting a compact yet comprehensive residential arrangement.

Key Features: 672 sq ft living area, 1 bedroom, 1 full bathroom, 2-car garage, open-concept living, kitchen island, walk-in closet, second-floor laundry, 10:12 roof pitch, 10 ft main ceiling height, accessory dwelling unit configuration.

Review floor plans, CAD packages, and modification options for this carriage house design to begin your project.

What's included in this plan
  • Exterior elevations (all sides)
  • Detailed floor plan(s) with dimensions
  • Foundation plan
  • Roof plan
  • Schematic electrical layout
  • Building cross-sections
  • General notes & specifications
Not included (handled locally)
  • Architectural / engineering stamps
  • Site & grading plan
  • Structural / framing calculations
  • Plumbing & HVAC layouts
  • Energy-compliance documents
  • Material take-off list
These are typically prepared by your local builder or engineer to meet your jurisdiction's requirements.

Complete Plan Specifications

Total Living (heated)672 sq ft
2nd Floor672 sq ft
Deck74 sq ft
Bedrooms1
Full Bathrooms1
Stories2.0
Width of House35′
Depth of House28′
Building Height24′9″
1st Floor10′
2nd Floor9′
Garage2-car, front-load
Garage Area672 sq ft
FoundationSlab
Wall Framing2x6
Roof FramingTruss
Roof Pitch10:12

Key Features

2.0-story layout
1 bedrooms · 1 full baths
10-ft ceilings on the main level
2-car garage
35.00′ × 28.00′ footprint
Unlimited build license included
Copyright release — print as many copies as you need
Builder-friendly construction drawings

Modify This Plan

Free quote in 1–3 business days · In-house design team
In-house design team · Family-owned since 1983

Need a 4th bedroom, a different foundation, or 8 more feet of width?

Two quick steps. We'll reply with a fixed-price quote — no obligation, and no charge until you approve.

1–3 days
To send your quote
~2 wks
Typical revision time
Free
Until you approve
Direct
To the architect
1
Your contact
2
What to change
PLAN
Plan #X7318-A
GARAGE · 672 sq ft · 1 bd / 1 ba / 2-car

First — where should we send your quote?

We only ask for what we need to get back to you. No address, no marketing.

Free quote — no charge until you approve·Direct to our in-house architect·40+ years modifying plans

What will this cost to build?

Most buyers are off by 20–30% before checking this.
Budget
$286k
Most common
Mid-range
$333k
Premium
$373k+
Modeled on Wichita, KS — our US price-baseline city. Use the form below to generate an exact estimate for your own location.
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Still deciding?

Book a free 15-min plan review with David Park.

David has 30+ years in residential design and construction documents. He'll walk through this plan with you — foundation options for your lot, modification possibilities, and exactly what's in the construction documents you'd receive. No pitch. No fee.


Reviews across all our plans — see plan-specific reviews on Trustpilot →

★★★★★

JoAnne and the entire staff was extremely helpful and patient with us while we decided between 2 homes. Outstanding curb appeal and a great layout perfect for us.

R
Rita Long · Milwaukee, WI
Plan: Cranberry Gardens
Verified buyer · Trustpilot
★★★★★

We've had an amazing experience with our new home. The customer service we received during our modifications was exceptional — they walked us through every change.

S
Sandra Hawkins · Montgomery, AL
Plan: Dunrobin Castle
Verified buyer · Trustpilot
★★★★★

We compared three plan sources and Archival's pricing + free design call won us over. Our builder said the construction docs were the cleanest he'd seen.

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Mark Chen · Boise, ID
Plan: Pepperwood Place
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Frequently Asked Questions

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For most buyers, the PDF Set is the right choice — instant delivery, unlimited build license, and easy to share with your builder. If you plan significant modifications or are building in CA, OR, WA, or NV, go with CAD + PDF so your designer can edit the source files. Still not sure? Call (888) 890-2353 and a real person will help you choose.

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