Average Home Extension Cost in Connecticut (2024)

Home extensions provide homeowners with extra living space without relocating. Extensions can be affordable and practical for an additional bedroom, home office, or larger kitchen. Extending your home is a viable decision instead of uprooting your entire life and moving to a new location. This guide provides a detailed look at Connecticut’s home extension cost.

How Much Does Home Extension Cost in Connecticut in 2024?

The average cost of home extension in CT is about $250 per affected square foot. The affected square foot is the size of the extension, along with any additional remodel or renovation involved in the process. For example, if you are extending your kitchen, you might only be adding 40 square feet. Still, you must consider the expense of remodeling to make the kitchen look proper again. Hire an expert remodeler to make your dream a reality with minimal impact on your current setup.

Common Home Extension Types 

Homeowners in CT opt for extensions to meet their various needs. Home prices are going north, so remodeling your home to fit your requirements can be considered an affordable alternative to moving. If done correctly, you will have space for all your needs without damaging your structure. Here are some popular home extension choices in Connecticut.

Bedroom Additions

Bedroom additions are popular home extension projects to accommodate a growing family or to use as a guest room. A bedroom addition increases the usable area of your house. A 200 to 300-square-foot addition costs between $45,000 and $100,000.

Kitchen Expansions

Increasing kitchen sizes allows for larger dining areas and storage solutions. You can get more space to accommodate new appliances or entertain guests. Kitchen extensions can cost between $50,000 and $130,000, depending on finishes and appliances.

Living Room Extensions

Extending living rooms enhances entertainment spaces with improved furniture layouts. These projects typically range from $60,000 to $120,000.

Home Office Additions

A home office is a popular home extension option as more people shift to working remotely. Earlier, many remote workers made do with a cramped closet or the guest bedroom. Nowadays, dedicated home offices are in high demand. Modest 100-200 square feet office extensions can cost $30,000 to $80,000.

Bathroom Additions

Extra bathrooms provide convenience and can boost home values. Whether you want a simple renovation or a complete custom remodel with fixtures and bath fittings, a new bathroom extension will cost between $40,000 and $90,000.

Sunroom Additions

Sunrooms serve as the bridge between indoor and outdoor living. They can be a great place to entertain guests or build a relaxing nook. The prices range from $30,000 to $80,000 depending on the needs.

Type of ExtensionAverage cost in 2024
Kitchen Extensions$50,000 – $130,000
Bathroom$40,000 – $90,000
Living Room$60,000 to $120,000
Bedroom$45,000 – $100,000
Sunroom$30,000 – $80,000
Home Office$30,000 – $80,000

Factors Affecting Home Extension Costs

Here are some factors affecting home extension costs in CT. 

Material Choices

Material selections are essential as they add to your extension’s expenses. Choose the suitable material for structural elements and finishes according to your budget. For example, laminate costs $10 to $30 per square foot if you need new countertops in your extended kitchen. It adds to the finish without breaking the bank. You can also go for a quartz or granite top while renovating that ranges from $50 to $100 and $40 to $100 per square foot, respectively. They are premium products at a premium price.


Wood framing is the most economical at $5-$10 per square foot for materials and labor. Steel framing costs $15 to $25 per square foot. They contribute to a more robust structure that requires minimal maintenance.

Exterior Finishes

Siding options like vinyl, which costs $3 to $7 per square foot installed, or fiber cement, which costs $7 to $13 per square foot, are budget-friendly. Stone veneers, on the other hand, cost $25 to $50 per square foot. The higher price is due to the luxurious feel it brings to your home.


Hardwood floors bring a rustic and warm look to your living spaces. They cost $5 to $15 per square foot to install. Tiles cost $5 to $20 per square foot and offer waterproof solutions for bathrooms and kitchens.

Windows and Doors

PVC windows and doors cost $300 to $700 per unit. They are efficient for a minimal budget. Wood or aluminum options cost $500 to $1,200. These windows are durable and aesthetically pleasing.


Besides materials, labor expenses contribute significantly to your extension’s price tag. Connecticut’s labor rates skew towards the higher end of national averages. 

Labor RequiredAverage Rate per Hour
General Contractor$50 – $150
Electrician$50 – $100
Plumbers$45 – $150
Carpenters$35 – $80
Masons$40 – $80

The more specialized tradespeople are involved, the higher your labor costs will be. Hourly rates may fluctuate based on your location within Connecticut and project complexity. 

Additional Expenses to Consider 

Apart from these expenses, you must also budget for extras like consultation, design, permits, etc. Expect to pay 5%-20% of total construction costs as architect fee. A structural engineer will cost you $500 to $2000. Don’t skimp on these costs, as their expertise is worth its weight in gold. Cutting costs here can lead to expensive mistakes.  

Building permits will set you back by $100 to $3000 based on the municipality and project scope. Factor in these costs so you don’t overshoot your budget.
Starting a home extension project is a major commitment for homeowners in Connecticut. You must carefully evaluate all your needs and weigh your options.  Hire the right team to undertake such a massive project, or you might be flushing your money down the drain. Sublime Renovations and Design has served the East Coast with our building and remodeling services for over 35 years. Fill out our contact form to receive a no-obligation quote to begin your dream home expansion project.

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