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ARCHIVAL DESIGNS
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HomeAccessory Dwelling Unit Adu House PlansVersatile One-Bedroom ADU with Spacious Garage and Workshop

Versatile One-Bedroom ADU with Spacious Garage and Workshop

Plan #V5547-A · 612 sq ft · 1 bd · 1 ba · 1.0 story · 2-car

Accessory Dwelling Unit Adu House PlansOne Story
★★★★★Read 687+ verified reviews →
Estimated cost to build the home
$90k – $155kFree zip estimate ↓
Have questions about this plan? Book a free plan review with David →
David Park · Residential Plan Advisor · 30+ years
612
Sq Ft
1
Beds
1
Baths
1.0
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…
  • Need a workshop or significant storage for hobbies and equipment (1,140 sq ft garage and workshop)
  • Want a compact, efficient living space with minimal maintenance (612 sq ft on slab foundation)
  • Working with a smaller lot between 40–49 feet wide (48-foot width, 38-foot depth)
  • Require a single-level layout with no stairs (one-story ADU)
  • Plan to use this as a guest house, rental unit, or accessory dwelling (highly efficient 1-bedroom layout)
! May not be the best fit if you…
  • Need multiple bedrooms for a family (only 1 bedroom)
  • Want separate formal dining and living rooms (open-concept keeping room and kitchen only)
  • Require 2+ full bathrooms (only 1 full bathroom)
  • Prefer a lot wider than 49 feet (design is 48 feet wide)

This plan tends to appeal to:

Acreage OwnersHobby FarmersCar EnthusiastsDownsizersWork-From-Home Professionals
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 — 612 sq ft · 44.50′W × 35.00′D

↓ Free Sample
floor plan
floor plan

Choose Your Package

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PDF Set
Build as-is or minor changes
$1,250
  • Complete working drawings (PDF)
  • Instant delivery to your email
  • Unlimited build license included
  • Copyright release — print as needed
  • AutoCAD DWG files not included
5 Prints + PDF
$1,700
  • Complete construction drawings
  • Unlimited build license included
  • Copyright release — print as needed
CAD Set
Significant modifications or custom design
$1,900
  • Complete construction drawings
  • Unlimited build license included
  • Copyright release — print as needed

About this plan

20 160 Barndominium provides 612 square feet of heated living area designed for efficiency and compact utility. Spanning 48 feet in width and 38 feet in depth, this accessory dwelling unit (ADU) is engineered to maximize a small footprint while maintaining a distinct architectural profile through a combination 10:12 and 4:12 roof pitch.

The main level interior is defined by an open-concept core that integrates a kitchen island with the primary living space, promoting direct sightlines throughout the 612-square-foot floor plan. A single bedroom layout provides a private living quarter, while 9-foot ceiling heights contribute to the perceived volume of the interior space. This configuration is suitable for a secondary dwelling, guest house, or rental unit.

Structural integrity is provided by 2x6 exterior wall framing and truss roof construction, ensuring long-term durability for the structure. The design features a significant 1,140-square-foot garage and workshop area, which accommodates 2 cars and offers substantial space for hobbyist activities or additional storage. The front-load garage orientation allows for simple site access and efficient driveway integration.

This 1,852-total-square-foot building balances residential utility with a high-capacity garage, making it a practical addition for property owners seeking to expand their usable square footage. The plan combines a compact, high-efficiency living environment with a large-scale workshop to meet diverse storage and work-from-home requirements.

Key Features: 1 bedroom, 1 bathroom, 612 sq ft living area, 1,140 sq ft garage, 2-car capacity, workshop space, open-concept kitchen, kitchen island, 2x6 wall framing, truss roof construction, accessory dwelling unit.

Review plan layouts, CAD packages, and customization options for this home.

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)612 sq ft
1st Floor612 sq ft
Bedrooms1
Full Bathrooms1
Stories1.0
Width of House44′6″
Depth of House35′
Garage2-car, front-load
Garage Area1,140 sq ft
FoundationSlab
Wall Framing2x6
Roof FramingTruss
Roof Pitch10:12 and 4:12

Key Features

Single-story living — no stairs
1 bedrooms · 1 full baths
2-car garage
44.50′ × 35.00′ 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 #V5547-A
GARAGE · 612 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
$100k
Most common
Mid-range
$126k
Premium
$120k+
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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Tiers above are baselined on Wichita, KS. Enter your own location for an exact Estidraft estimate.
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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.

M
Mark Chen · Boise, ID
Plan: Pepperwood Place
Verified buyer · Trustpilot

→ Read all 687+ reviews on Trustpilot


Frequently Asked Questions

Can't find your answer? Call (888) 890-2353

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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