How Much Does It Cost to Build a Balcony in 2025?
The average cost to build a balcony is $14,000
A balcony costs between $2,000 and $30,000 to build, with most homeowners paying an average of $14,000.
Expect to pay between $30 and $90 per square foot, depending on the balcony size, material, and design.
Small Juliet balconies start at $2,000, while large supporting designs can run up to $25,000.
Hiring an experienced balcony builder costs $50 to $150 per hour and ensures proper structural support, code compliance, and a safe, long-lasting addition to your home.
This article was updated using automation technology and thoroughly reviewed for accuracy by HomeAdvisor Editor Ryan Noonan.
Add a balcony and you instantly gain fresh living space and curb appeal. Most homeowners spend between $8,000 and $25,000 on a build, with an average price of $14,000. Where you live, what you build with, and any required structural engineering all factor into the price. By carefully budgeting for design, materials, and labor, homeowners can create an outdoor living space that suits their needs. Always consider working with a professional balcony builder to ensure safety, structural integrity, and compliance with local building codes.
Balcony Cost Factors
Your final balcony price tag hinges on a handful of key choices—from structural needs to your preferred look. Every decision you make changes what you’ll ultimately pay for that new outdoor perch.
Materials
Materials often take up roughly half of your balcony building budget. For a 40-square-foot balcony, plan to spend $1,200 to $3,600 just on planks, beams, railings, decking, and supports. While your costs will be higher, investing more upfront for premium products means fewer repairs, a longer lifespan, and a healthy bump in resale value.
Size
The size of your balcony has a significant impact on the cost and the styles that are feasible. Larger footprints demand sturdier supports, which adds both material and labor costs.
| Square Footage | Average Cost Range |
|---|---|
| $2,000–$9,000 | 20–40 |
| 40–80 | $8,000–$17,000 |
| 80–150+ | $15,000–$30,000+ |
Labor
Local balcony building professionals charge $50 to $150 per hour for labor, with rates varying based on where you live, project complexity, and whether you’ll need a structural engineer to sign off on load and wall strength.
Permits
Nearly every balcony requires a building permit to comply with local codes. Remember to budget an extra $300 to $1,500 for building permit fees. In many cases, your contractor will pull the paperwork for you.
Balcony Cost by Type
The type of balcony you’re installing has a major impact on your total project cost. Prefabricated balconies that bolt on cost significantly less than large, custom, cast-in-place balconies.
| Balcony Type | Average Cost |
|---|---|
| Juliet | $2,000–$7,000 |
| Cantilever | $10,000–$20,000 |
| Supporting | $12,000–$25,000 |
Juliet Balcony
Juliet balconies, costing $2,000 to $7,000, are decorative railings across doors or windows. They’re the least expensive option and offer minimal standing space.
Cantilever Balcony
Cantilever balconies run $10,000 to $20,000 and extend up to 24 inches beyond the wall without visible supports. This option hits a mid-range price point but stays shallow by design.
Bolt-On Self-Supporting Balconies
Prefabricated bolt-on balconies secure to the structure with rods and plates and cost $12,000 to $25,000. Because most components arrive ready to go, installation is fast—helping trim labor hours—but the design still depends on adequate wall strength.
Does Building a Balcony Increase Home Value?
A well-built balcony boosts both curb appeal and resale value—especially in markets that prize outdoor living. Many homeowners recoup 50% to 80% of the cost at sale, but your exact ROI depends on location, design, and the quality of materials.
Budgeting for Building a Balcony
To save money on your balcony project, consider the following tips:
Get multiple contractor quotes to find the best price in your area.
Select cost-effective and durable materials that offer long-term value.
Opt for simple layouts to minimize structural requirements and reduce material costs.
Leverage prefabricated components to cut labor rates.
Look for seasonal discounts at home improvement stores to save on materials.
How HomeAdvisor Gets Its Cost Data
No place is more important than your home, which is why HomeAdvisor connects homeowners with local pros to transform their houses into homes they love. To help homeowners prepare for their next project, HomeAdvisor provides readers with accurate cost data and follows strict editorial guidelines. After a project is complete, we survey real customers about the costs to develop the pricing data you see, so you can make the best decisions for you and your home. We pair this data with research from reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects.
