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  • Average homeowner rating star icon4.2
    Average homeowner rating
  • Verified reviews icon27
    Verified barndominium building reviews

Top-Rated Barndominium builders in Key Biscayne - Updated Nov 2026

Avatar for Coastal Improvement Corporation
Coastal Improvement Corporation
5.0(
9
)
Find a Custom Home Builder

Serving Key Biscayne, FL and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Our Services: As a Certified General Contractor (CGC), we provide full-service construction solutions ranging from residential projects to large-scale commercial, infrastructure, and municipal developments. Our expertise includes ground-up construction, renovation, and design-build services. \n

INTERIOR PROJECTS
INTERIOR PROJECTS
INTERIOR PROJECTS
INTERIOR PROJECTS
INTERIOR PROJECTS

+235

9 neighbors recently requested a quote
Avatar for Rassai Constructions LLC
Rassai Constructions LLC
5.0(
5
)
Shed, Barn or Playhouse - Repair

Serving Key Biscayne, FL and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

"Rassai construction and Abas did a tremendous job helping my mother in law. The work that was completed was superb and Abas attended to everything we asked of him. He completed the project in a timely fashion. The work consisted of not only painting, but assessing a leak, refinishing the kitchen area, creating a drainage system from the heavy rains to prevent the breakfast nook from collecting water, and redirecting the water away from the foundation. He is going to fix some additional plumbing in the kitchen area, he is going to install the cabinet knobs, and secure the foundation of cabinet for the dishwasher. We can't say enough for how thankful we are to him and his crew. I highly recommend his services."
Kitchen Refurbishing
Kitchen Refurbishing
1 neighbors recently requested a quote
Avatar for Volca
Volca
3.9(
15
)
Garage - Build

Serving Key Biscayne, FL and surrounding areas

Approved

In business since 2018

Free estimates

Customers say: True professional

"We hired them to do a major renovation at our home and they took care of everything on schedule and, more importantly, right on budget. Theyâ re 100% committed to quality work and customer service. I definitely recommend this company."
Drone 1
Casa 1
Render
Patio
Kitchen

+30

Response time2 days
Response rate97%
16 neighbors recently requested a quote
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Barndominium Builders FAQs, answered by experts

The most common slope, or roof pitch, for a shed is 4:12 or four inches of height for every horizontal foot. For areas that experience heavy snow loads, a steeper roof of 6:12 or 9:12 is best. 

Rustic and modern farmhouse styles are currently the most popular. These include rustic and antique furniture, muted colors, clean lines, eclectic decor, and natural materials. Some other popular farmhouse styles include the following:

  • Coastal farmhouse: Creates a lighter, airier feel with soft colors and blue palettes, along with gold

  • Colonial farmhouse: Focuses on real antique furniture and decor

  • French farmhouse: Leans on French country architecture and design by including marble and lighter-colored metals, like zinc

  • Industrial farmhouse: Includes thick, chunky furniture and dark metals

  • Scandinavian farmhouse: Usually includes lighter wood colors and more refined furniture

The best lumber for building will be the strongest and most eco-friendly wood your budget allows. That being said, Douglas fir, pine, oak, and maple are all common building materials. Contractors will use a strong, inexpensive wood to frame a house or other structure and finer woods like mahogany for detail work. 

Yes, barndominiums are energy-efficient as long as insulation professionals properly install quality insulation, windows, and doors. Utility bills for barndo living can be up to 50% lower than those for a traditional home.  Make your barndo more energy efficient by working with contractors and HVAC professionals to strategically place windows, doors, and heating/cooling systems. 

Ranch and colonial-style homes are often the most affordable to build. They have a common layout with available designs that are easy to adjust in simple ways without having to spend too much on a structural engineer or architect. Both types of homes' symmetry, simple roofs, and often one or two-story plans mean they often fall in the $150 to $200 square-foot range, putting them right around average.

The Key Biscayne, FL homeowners’ guide to barndominium building

From average costs to expert advice, get all the answers you need to get your job done.