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    Average homeowner rating
  • Verified reviews icon30
    Verified custom home building reviews

Top-Rated Custom home builders in Key Biscayne - Updated Nov 2026

Avatar for Evolves Construction
Evolves Construction
4.7(
118
)
Find a Custom Home Builder

Serving Key Biscayne, FL and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"I’ve met Carlos while he was doing a remodel at my customer’s house. Since then we have added LeBirch Development to our team. He has been able to prove over and over again that no job is to big. He has finished to completion every job on a timely matter that we can keep up with him and his crew. He is puntual and on top of his game. He knows everything that’s is going in his jobs and will harass you to get what he needs to not fall behind. I’ve been in this business for over 17 years and met many contractors I truly can tell you that if you want a job done, professional, timely and from the what I hear affordable you can trust Lebirch Development and Construction ask for Carlos Neira. You won’t regret it !!!"
bathroom
BATHROOM
BATHROOM
BATHROOM
BATHROOM

+60

Response time10 hrs
Response rate92%
67 neighbors recently requested a quote
Avatar for Coastal Improvement Corporation
Coastal Improvement Corporation
5.0(
9
)
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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
A Squared Builders, LLC
5.0(
4
)
Find a Custom Home Builder

Serving Key Biscayne, FL and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"A Squared Builders did an amazing job on our custom home! From start to finish they made the process easy and stress-free. Great communication, honest, and the quality of the work is top notch. We couldn’t be happier with how our home turned out and would recommend them to anyone looking for a builder you can really trust."
Custom home
Custom home
Custom home
Custom home
Response time12 hrs
1 neighbors recently requested a quote
Avatar for Golden temple Builders Inc
Golden temple Builders Inc
4.6(
9
)
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Serving Key Biscayne, FL and surrounding areas

In business since 2003

Free estimates

Warranties offered

"Very Happy with choosing Golden Temple Builders for my construction needs. Nick the owner was very professional and clearly explained the stages of the project and was able to work with the pricing points that I could commit to. His team went above and beyond my expectations, and job was completed even well before promised. Would Highly Recommend!!!! 10/10"
3rd story attic turned into gym.
Addition
Staircases
Kitchens
Building new homes

+112

Response time5 days
Response rate100%
Recommended by88%of homeowners
Avatar for Rightway Construction Miami
Rightway Construction Miami
5.0(
7
)
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Serving Key Biscayne, FL and surrounding areas

In business since 2006

Free estimates

Credit card accepted

"I don’t usually leave reviews but I had to write one for Rightway Construction. Great prices and even better customer service. They did our master bathroom and completely remodel our floors. We couldn’t be happier. I will re-hire them in a heart beat."
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+21

Recommended by100%of homeowners
Avatar for Wolfe Construction Group
Wolfe Construction Group
4.0(
74
)
Find a Custom Home Builder

Serving Key Biscayne, FL and surrounding areas

In business since 2004

Free estimates

Credit card accepted

"Rob took my call and provided helpful information i needed for my home i just purchased. Although there was nothing for him to do for me, he was happy to share his knowledge with me and give me his opinion.  I would call Rob again in the future if i require his services."
Additional Photos
bedroom remodel
Commercial painting project
Recommended by84%of homeowners
Avatar for J & H Stoneworks
J & H Stoneworks
5.0(
17
)
Find a Custom Home Builder

Serving Key Biscayne, FL and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"We are very happy with our new countertops. They look great. Jamie and his team did an excellent job from beginning to end. And even stayed late to finish it up due to us leaving for vacation. The customer service was top notch and I would highly recommend them. Thank you Jamie and crew."
Additional Photos
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Additional Photos

+97

Recommended by100%of homeowners
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Custom Home Builders FAQs, answered by experts

The average cost to renovate or remodel a home is $52,300, with most projects ranging from $19,500 to over $88,400. However, costs can vary significantly, from as low as $3,000 for a small project to $170,000 or more for a complete home remodel.

Several factors influence the total price, including:

  • Project Scope and Size: The extent of the renovations, whether it's a single room or the entire house.

  • Location: Geographic location affects labor and material costs.

  • Materials: The quality of materials chosen.

  • Room Type: Kitchen remodels ($14,500 - $70,000+) are generally more expensive than bedroom remodels ($1,500 - $5,500).

  • Other Factors: The time of year, complexity of the work, and any additions or expansions.

On a per-square-foot basis, you can expect to pay between $15 and $60 for standard projects and up to $150 for luxury renovations.

Examples of specific project costs include:

  • Basement remodel: ~$20,200

  • Garage remodel: ~$27,900

  • Loft conversion: ~$20,200

  • Disability accommodation remodel: ~$4,300

  • Major home repairs: ~$11,700

If you are financing the project, note that some loan programs, like the FHA 203(k), may require a minimum project cost (e.g., $5,000) and will necessitate a home appraisal and professional cost estimates. Using a home renovation cost estimator can also help you budget for your project.

A construction-to-permanent loan is the most common type of mortgage used to finance a house teardown and rebuild. These loans include financing for construction costs and convert to a long-term mortgage once construction is complete. Check the terms of the loan closely before beginning work—there are often restrictions requiring you to use licensed contractors for all work.

How long it takes to build a custom home or rebuild a home after a disaster varies depending on many factors, but averages between seven and 14 months. Smaller homes or homes that don’t need a re-poured foundation may take less time to build than larger homes or homes without an existing foundation. Material availability, contractor schedules, and permit and inspection timelines can all affect how long your house takes to build.

How long it takes to build a log cabin depends on a variety of factors, including its size and design, and whether or not you have to clear the land. Construction can take a few weeks for a prefab log cabin on an established site, but up to eight or nine months for a custom cabin on undeveloped land. In comparison, the timeline to build a house is typically four to 12 months.

It usually takes around four to six months to build and install a modular home, although your timeline could go up to around eight months if there are delays in the manufacturing or permitting process. Heavy site preparation and foundation pouring can extend that timeline if you need them, as can customizations you want for your modular home. Your modular home company should be able to provide an estimate for the construction timeline before you sign any contracts or agree to any work.

The Key Biscayne, FL homeowners’ guide to custom home building

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