How much does a Florida room cost to build?
Ashburn, VA

How much does a Florida room cost to build?

Ashburn, VA

How much does a Florida room cost to build?

$80 – $400cost per square foot installed
$8,000 – $50,000average 3-season room cost
$20,000 – $80,000average 4-season room cost

Get free estimates for your project or view our cost guide below:

$80 – $400 cost per square foot installed

$8,000 – $50,000 average 3-season room cost

$20,000 – $80,000 average 4-season room cost


Get free estimates for your project or view our cost guide below:
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Sarah Noel
Written by
Sarah Noel
Edited by
Tara Farmer
Fact-checked by
Tom Grupa

Average cost of a Florida room or sunroom

A Florida sunroom addition costs $80 to $400 per square foot installed on average. A 3-season Florida room costs $8,000 to $50,000 total or $80 to $230 per square foot. A 4-season Florida room costs $20,000 to $80,000 or $200 to $400 per square foot with full insulation.

Florida room cost
Florida room size 3-season room cost installed 4-season room cost installed
8'x10'  $6,500 – $18,500 $16,000 – $28,000
10'x10'  $8,000 – $23,000 $20,000 – $35,000
10'x12'  $9,500 – $27,500 $24,000 – $42,000
10'x16'  $12,500 – $37,000 $32,000 – $56,000
10'x20'  $16,000 – $46,000 $40,000 – $66,000
12'x12'  $11,500 – $33,000 $28,500 – $47,500
12'x16'  $15,500 – $45,000 $38,500 – $63,500
12'x20'  $19,000 – $55,000 $48,000 – $79,000
14'x14'  $15,500 – $45,000 $39,000 – $65,000
16'x16' $20,000 – $60,000 $50,000 – $80,000
16'x24'  $30,000 – $85,000 $75,000 – $120,000
20'x20' $32,000 – $90,000 $80,000 – $124,000

Get free estimates from sunroom contractors near you.

Florida room cost by type

An average Florida room costs $80 to $400 per square foot installed, depending on the size, type, and design complexity. A 3-season screen room or prefab kit is cheaper while 4-season rooms cost the most.

Florida room cost by type
Room type Total installed cost per square foot Average total cost installed
Three-season room $80 – $230 $8,000 – $50,000
Four-season room $200 – $400 $20,000 – $80,000
Conservatory $200 – $600 $50,000 – $150,000
Glass room / solarium $300 – $800 $30,000 – $100,000
Prefab kit $20 – $150 $10,000 – $50,000

3-season / Florida screen room prices

A 3-season Florida screen room costs $8,000 to $50,000 or $80 to $230 per square foot. The total cost is lower than other types due to the lack of insulation and glass windows. Typical designs include a solid shingled roof with either all-screen walls or large window screens.

Other common outdoor enclosure types include:

A screened in porch with tile flooring.
A screened in porch with tile flooring.

4-season Florida room prices

A 4-season Florida room costs $20,000 to $80,000 on average or $200 to $400 per square foot. The total cost varies according to the size, materials, and design. All 4-season rooms have insulation and connect with the rest of the house.

A bright Florida room or sunroom with large picture windows.
A bright Florida room or sunroom with large picture windows.

Conservatory addition cost

A conservatory addition costs $50,000 to $150,000 or $200 to $600 per square foot installed. A conservatory is a luxurious 4-season sunroom with insulation, HVAC climate control, electricity, and a peaked glass ceiling. This living space is ideal for plants as it allows more sunlight in than a traditional sunroom.

Solarium cost / glass room cost

A solarium costs $30,000 to $100,000 or $300 to $800 per square foot. The total cost depends on the size and whether it's a 3-season or 4-season addition. A solarium has all glass walls and roofing. A 4-season solarium has insulated glass that's thicker than most greenhouses.

Prefab Florida room kit prices

Prefabricated Florida room kit prices are $10,000 to $50,000 installed on average or $20 to $150 per square foot. These prices only include materials and installation on an existing concrete foundation or reinforced deck. Total costs depend on the brand, size, and whether the room has full insulation.

Florida room construction costs

Florida room labor and construction costs depend on the requirements:

Florida room addition pros and cons

The following table shows the advantages and disadvantages of a Florida room addition:

Get free estimates from sunroom contractors near you.
Florida room addition pros and cons
Pros Cons
  • Increased living space
  • Natural light all year long
  • Panoramic views
  • Increased home value
  • Enhanced curb appeal
  • Indoor gardening space
  • Expensive upfront cost
  • Needs drapes for privacy
  • Higher insurance & property taxes
  • Raises utility bills for 4-season rooms
  • Longer processing time for permits

Florida room FAQs

What is a Florida room?

A Florida room is a home addition with many windows built with materials matching the quality of your home interior. This room is the same as a 3-season or 4-season sunroom. This addition gets its name from being popular in Florida where people want to enjoy outdoor living more comfortably.

Common Florida room features include:

  • A permanent roof that extends the home's roofing

  • Private location at the rear or side of a home

  • Enclosures with glass windows or large window screens

  • HVAC systems for heating and cooling

  • Home-interior flooring instead of stone pavers or concrete

  • Full insulation for temperature control

Does a Florida room add value to a home?

A Florida room adds value to a home with a 50% to 60% ROI upon reselling the property, depending on the building quality and the neighborhood. The most valuable types are 4-season rooms with HVAC systems that boost the total square footage of the home.

How long does it take to build a Florida room?

Building a Florida room takes 2 to 3 months to complete. The amount of time increases in areas with labor or material shortages. Builders are typically busiest in spring and summer, which also causes construction delays.

This timeframe includes:

  • Creating designs & building plans

  • Pulling permits

  • Constructing a new foundation

  • Building the walls, roofing, and flooring

  • Finishing the interior with HVAC or other optional touches

What is the difference between a Florida room and a California room?

The biggest difference between a Florida room and a California room is the open-air expansive design of the California-style addition. A California room is closest to a Mediterranean "loggia" entertaining area rather than a Florida sunroom.

Other differences include:

  • California rooms have 1 or more open walls, but Florida rooms are enclosed to keep all pests out.

  • California rooms often have luxury furnishings while some Florida rooms have standard patio furniture.

  • California rooms can feature high ceilings while Florida rooms have the same ceiling height as the attached home.

  • Amenities like bar seating, outdoor fireplaces, home spas, sliding glass walls, and large kitchens are more common in California rooms.

Getting estimates from Florida room contractors

Before hiring a Florida sunroom builder or home addition contractor, be sure to:

  • Compare at least 3 in-person estimates from similar companies.

  • Look for a licensed, insured, and bonded company in business for 5+ years.

  • Visit local showrooms to decide on the model and size you want.

  • Read their past reviews on HomeGuide and Google.

  • Ask for a fully itemized contract in writing before work starts in case of a dispute.

  • Request a service and manufacturer's warranty for at least several years.

  • Avoid making large payments up front.

Questions to ask

  • How long have you been installing Florida rooms?

  • Can I see your portfolio of past projects and a list of references?

  • What are my options for flooring, windows, roofing, and paint?

  • Are you part of any local or national home builders associations?

  • Will you pull all the permits, and how much will they cost?

  • Do you call the utility company to check for underground lines before digging?

  • How much time do I have to discuss the Florida room addition design?

  • Are all materials, labor, and cleanup included in your quote?

  • Who's the project manager, and how should I contact them?

  • Will you use subcontractors, and how should I prepare for them?

  • What's the daily schedule for your crew?

  • How long will this Florida sunroom take to build?

  • Are warranties and other guarantees included?

  • What's your payment schedule?