Carriage Cottage ADU Single Car Garage Apartment House Plan | Small Home | Blueprint PDF (Multi-Foundation)

The Carriage Cottage is a one-bedroom, one-bath single-story ADU (accessory dwelling unit) home plan with an integrated single car garage, designed with versatility and simplicity in mind. Featuring 526 square feet of heated living space paired with a functional 333 sq. ft. single-car garage, this design maximizes its compact footprint. It is ideal for use as a poolside guest house, starter home, in-law suite, or rental unit on your existing property.

Inside, you’ll find a smart, space-efficient layout that includes a functional kitchenette with single sink and under-counter refrigeration, a cozy living room setup with a dedicated TV wall, and an adjacent stack laundry space. The master bedroom suite features an attached walk-in closet (W.I.C.) and direct, convenient access to the full bathroom. Designed with a multi-foundation approach—featuring detailed options for either a turn down slab (monolithic pour) or a slab-on-grade (with poured stem walls) foundation—and sturdy 2×6 framing, The Carriage Cottage blends style, function, and durability.

Elevate your build with a complete, ready‑to‑use architectural plan set designed to streamline every step of construction. Each package includes precision‑crafted construction drawings and a fully itemized materials list, giving you everything you need to move from concept to completion with confidence.

Architectural plans are delivered as PDFs optimized for 11×17 (tabloid) printing at true scale, ensuring crisp, professional results. Estimate lists arrive in easy‑to‑print 8.5×11 (letter) format, perfect for budgeting, planning, and contractor coordination.

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Plan Features:
Overall Dimensions: 36’ x 24’

Total Heated Area: 526 sq. ft.

Attached Garage Area: 333 sq. ft. (featuring a 9’x8′ overhead garage door)

Bedrooms: 1 Bedroom Suite with Walk-In Closet

Bathrooms: 1 Full Bath

Ceiling Height: Airy 9′ Ceilings (9′ 1 1/8″ rough) throughout the main living areas

Foundations Included: Dual options! Turn Down Slab (Monolithic Pour) on Grade AND Slab on Grade (with poured stem walls) Foundation

Framing: 2×6 Exterior Walls (16″ O.C.)

Roof Framing: Durably Stick-Framed (2×8 roof rafters 16″ O.C. with a 2×10 ridge beam)

Architectural Details: Features a prominent front overframed false gable, vinyl or Hardie board siding, and continuous ridge venting.

What’s Included in Your Purchase:
📐 Complete Architectural Floor Plans – Fully dimensioned, detailed, and ready to build

🏗 Multi-Foundation Engineering Details – Complete blueprint layouts for both turn-down monolithic slab and slab on grade (poured stem wall) configurations

🛠 Detailed Cross Sections & Fastening Schedules – Wall assembly specifications, insulation callouts (R-23 walls / R-49 ceilings), and code fastens to guide your builders

🏡 Optimized Layout – Kitchenette space, living room, laundry nook, private bedroom suite, and seamless interior garage entry

💡 Designed to Code – Created for standard North American building requirements (115 MPH basic wind speed, 30 PSF snow load capacity)

📩 Need modifications? Send us a message to discuss custom plan options.

Why Choose MC Creative Blueprints?
✔ Professionally designed with standard builder optimizations

✔ Easy-to-follow construction plans, engineered clearly for builders & DIYers

✔ Get your plans today so you can start planning your build!

⚠ Copyright Notice: These plans are for personal use only. Redistribution or commercial resale is strictly prohibited.

🔨 Get your plans now and start building The Carriage Cottage for your family, guests, tenants, or your own backyard retreat!