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HomeAccessory Dwelling Unit Adu House PlansCozy Garage Apartment with Porch and Private Master Suite

Cozy Garage Apartment with Porch and Private Master Suite

Plan #Q6450-A · 435 sq ft · 1 bd · 1 ba · 1.0 story · 1-car

Accessory Dwelling Unit Adu House PlansOne Story House PlansTraditionalOne Story
★★★★★Read 687+ verified reviews →
Estimated cost to build the home
$65k – $110kFree zip estimate ↓
Have questions about this plan? Book a free plan review with David →
David Park · Residential Plan Advisor · 30+ years
435
Sq Ft
1
Beds
1
Baths
1.0
Stories
1
Garage
12′
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 an accessory dwelling unit for rental income or guest quarters (435 sq ft self-contained apartment)
  • Working with a small lot or tight footprint (just 40 feet wide by 40 feet deep)
  • Want a single-level layout with no stairs (one-story garage apartment)
  • Need a 1-car garage for vehicle storage or workshop space (700 sq ft front-load garage)
  • Seeking affordable, efficient living under 800 sq ft (435 sq ft heated living area)
! May not be the best fit if you…
  • Need multiple bedrooms for a growing family (only 1 bedroom)
  • Require 2+ bathrooms (only 1 full bathroom)
  • Want a large 2+ car garage (1-car garage only)
  • Need significant square footage for entertaining (435 sq ft total living area)
  • Prefer a spacious master suite (compact master in 435 sq ft footprint)

This plan tends to appeal to:

Accessory Dwelling Unit BuildersRental Property InvestorsEmpty NestersFirst-Time BuildersDownsizers
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 — 435 sq ft · 40.00′W × 40.00′D

↓ Free Sample
floor plan
floor plan

Choose Your Package

Not sure? Call us — we'll help
PDF Set
Build as-is or minor changes
$800
  • 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
$950
  • Complete construction drawings
  • Unlimited build license included
  • Copyright release — print as needed
PDF Multi-Build
$1,000
  • Complete construction drawings
  • Unlimited build license included
  • Copyright release — print as needed
CAD + PDF Bundle
$1,050
  • Complete construction drawings
  • Unlimited build license included
  • Copyright release — print as needed
CAD + PDF Multi-Build
$1,400
  • Complete construction drawings
  • Unlimited build license included
  • Copyright release — print as needed

About this plan

Cozy Garage Apartment with Porch and Private Master Suite occupies a compact 40-foot by 40-foot footprint, delivering 435 square feet of efficient living space. Designed to maximize vertical volume, this structure features 12-foot ceilings that enhance the interior scale despite the smaller square footage. The plan is structured as an accessory dwelling unit, integrating residential quarters above a functional ground-level workspace.

The main living level contains a single master suite accompanied by one full bathroom and a dedicated kitchen. This layout provides a private, self-contained environment suitable for guest accommodations or rental income. The interior floor plan prioritizes direct circulation and maintains a clear sightline between the kitchen and the primary living area, ensuring the 435-square-foot footprint remains practical for daily use.

Structural integrity is achieved through a slab foundation and 2x6 exterior wall framing, topped with a truss roof system. The roof profile is defined by an 8:12 pitch, contributing to a total building height of 22 feet 8 inches. This configuration provides a durable, weather-resistant envelope while maintaining a traditional aesthetic suitable for various lot types.

The ground floor consists of a 700-square-foot front-load garage with a 1-car capacity, providing substantial room for vehicle storage or a hobby workshop. Exterior usability is extended by a 464-square-foot rear porch, which serves as an additional outdoor area. A covered front porch provides a sheltered entry point, completing the exterior functionality of this compact, multi-purpose design.

Key Features: 435 sq ft living area, 1-bedroom layout, 1 full bathroom, 1-car front-load garage, 12-foot ceilings, 464 sq ft rear porch, 8:12 roof pitch, slab foundation, 2x6 wall framing, accessory dwelling unit, 22'8" building height.

Explore floor plans, available formats, and customization options for this garage apartment design.

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)435 sq ft
1st Floor435 sq ft
Rear Porch464 sq ft
Total Porch464 sq ft
Bedrooms1
Full Bathrooms1
Stories1.0
Width of House40′
Depth of House40′
Building Height22′8″
1st Floor12′
Garage1-car, front-load
Garage Area700 sq ft
FoundationSlab
Wall Framing2x6
Roof FramingTruss
Roof Pitch6:12

Key Features

Single-story living — no stairs
1 bedrooms · 1 full baths
12-ft ceilings on the main level
1-car garage
40.00′ × 40.00′ 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 #Q6450-A
GARAGE · 435 sq ft · 1 bd / 1 ba / 1-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
$78k
Most common
Mid-range
$101k
Premium
$95k+
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.

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

→ Read all 687+ reviews on Trustpilot


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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Starting at
$800
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