17-1409 HOUSE PLAN – Coastal Traditional House Plan – 1-Bed, 1-Bath, 900 SF

Coastal Traditional Garage Apartment Plan with Classic Low Country Design

A thoughtfully designed 1-bedroom, 1-bath Coastal Traditional garage apartment offering timeless Low Country character, efficient living space, and flexible ADU potential.

This Coastal Traditional garage apartment plan blends classic Southern architecture with modern functionality, making it an ideal solution for homeowners seeking a guest suite, rental unit, carriage house, or private retreat. Inspired by Low Country and Charleston-style architecture, the elevated living quarters sit gracefully above a dual garage layout, creating a compact yet highly efficient footprint that maximizes both livability and curb appeal.

The exterior showcases clean horizontal lap siding, balanced proportions, and a welcoming upper-level balcony—hallmarks of traditional coastal design. Whether used as an accessory dwelling unit (ADU), carriage house, or standalone small home, this plan offers architectural authenticity with real-world flexibility.

Key Features at a Glance

• Heated Living Area: Approximately 900 square feet
• Bedrooms: 1 private bedroom
• Bathrooms: 1 full bath
• Garage: 2-car garage below living space
• Architectural Style: Coastal Traditional with Low Country influence
• Use Case: Garage apartment, ADU, guest house, carriage house

Architectural Style: Coastal Traditional with Low Country Roots

This home plan draws heavily from Coastal Traditional and Low Country architecture, styles rooted in the American Southeast and coastal regions. Elevated living spaces, symmetrical massing, and usable outdoor areas define the design. The upper-level balcony provides both shade and outdoor enjoyment while reinforcing the classic coastal aesthetic.

Low Country homes historically responded to warm climates and flood-prone environments, which is reflected here through the raised living quarters and practical layout. The restrained detailing, clean siding lines, and porch-oriented façade maintain a timeless appearance that works equally well in coastal, suburban, and rural settings.

For a deeper architectural perspective on coastal residential design, ArchDaily offers an excellent overview of how climate-responsive traditions continue to influence modern coastal homes (ArchDaily – Coastal Architecture).

Exterior Materials & Curb Appeal

The exterior is finished in classic horizontal lap siding, a material choice synonymous with Coastal Traditional homes. This siding style delivers durability, clean lines, and a refined appearance that pairs well with neutral or coastal-inspired color palettes.

• Horizontal lap siding for timeless coastal character
• Defined trim work for visual contrast and depth
• Upper-level covered balcony for outdoor living
• Exterior stair access enhancing ADU flexibility

The result is a home that feels established and authentic rather than trendy—an important consideration for long-term value and broad market appeal.

Interior Layout & Living Experience

Inside, the plan offers a well-balanced layout designed to feel open and comfortable within a compact footprint. The main living area connects seamlessly to the kitchen and dining zone, creating an efficient flow that avoids wasted space.

Large windows allow natural light to fill the interior, reinforcing the bright, airy feel associated with coastal living. Ceiling heights are proportioned to enhance openness without sacrificing energy efficiency.

Kitchen & Living Area

• Open-concept living and kitchen space
• Efficient cabinetry layout with ample storage
• Room for a full-size appliance package
• Comfortable seating and dining flexibility

Bedroom & Bathroom

• Private bedroom separated from main living area
• Closet space designed for full-time use
• Full bathroom with tub/shower combination
• Laundry accommodations integrated for convenience

Garage Apartment & ADU Advantages

This plan excels as a garage apartment or ADU, offering multiple functional advantages. The two-car garage below provides valuable storage, parking, or workshop space, while the living quarters above remain private and quiet.

• Ideal for multigenerational living
• Perfect for rental income or long-term guests
• Works as a home office or studio apartment
• Compact footprint suitable for narrow or rear lots

Exterior stair access allows the unit to function independently from a main residence, making it especially attractive for homeowners planning future flexibility.

Outdoor Living & Balcony Design

The covered upper-level balcony is a defining feature of this design. Positioned to extend the living space outdoors, it creates a comfortable area for morning coffee, evening relaxation, or coastal breezes.

Architecturally, the balcony reinforces the Low Country aesthetic while also improving livability—an essential element in coastal and Southern home design.

Construction & Build Benefits

• CAD + PDF Files Included: Ready for customization and permitting
• Unlimited Build License: Build multiple times without added fees
• Structural Engineering Included: Professionally reviewed
• Adaptable Foundations: Slab, crawlspace, or elevated options

The straightforward rooflines and traditional materials help keep construction costs efficient while preserving architectural integrity.

Who This Plan Is Perfect For

• Homeowners adding an ADU or guest suite
• Buyers seeking a Coastal Traditional carriage house
• Investors looking for rental-ready small homes
• Property owners needing garage + living space

Timeless Coastal Design That Builds Long-Term Value

This Coastal Traditional garage apartment plan proves that small homes can still deliver strong architectural presence. With its Low Country roots, functional layout, and enduring exterior materials, it offers a smart, flexible solution for today’s homeowners while remaining relevant for decades to come.

Classic design, practical living, and architectural authenticity—this plan delivers all three.