How Much Does Home Addition Services Cost in 2025?

How Much Does Home Addition Services Cost in 2025?

Are you planning to expand your home? Does your current home lack the necessary areas? Home addition services are the perfect solution to meet your home expansion needs. Whether your family is growing or you just want to add an extra area in your home, Fox Hill Construction can handle it all. 

In this blog, we will discuss how much it costs for a home addition project and what factors determine the price. So, let’s begin with all the essential details of the home improvement project.

Home Addition Services and Cost 

There are various varieties of expansion services for transforming your home. 

But what’s the difference? Do they all count under the same roof? No, all the home additions cost differently. So, here’s a quick look:

House Extension Cost Calculator

Addition type

Average cost per square foot
Room addition

$125 – $250

Room extension

$85 – $200

ADU addition

$100 – $300

Attic Conversion

$50 – $150

Basement conversion

$50 – $100

Garage conversion

$50 – $200

Second-story addition

$200 – $500+

Sunroom addition

$100 – $350

Home Addition Service Cost of Various Areas

1. Room Additions

The cost for a basic room addition per square foot will be between $125 – $250. The addition of a new room is completely separate; you are not expanding the existing one. So, you’ll have to invest in the plumbing and floor work that add to the cost. 

Thus, the families that require more space than they have without relocating should opt for this type of room addition.

2. Room Extension Cost

If you want to expand a room, like a kitchen or living room, it may cost $85 to $200 per square foot.

With a growing family, such room additions become a necessity to survive. Moreover, it costs you less than compared to room addition due to the prior work done. 

3. ADU Addition

An Accessory Dwelling Unit (ADU) is also known as a small guest house or rental unit. It is perfect for rental guests or even for private home offices. But ADU also costs you around $100 – $300 per square foot. Moreover, ADUs are more complex and require full plumbing, electricity, and kitchen facilities.

4. Attic Conversion

If you have damaged your attic and now want to convert it into something else, you will incur a cost of $50 – $150 per square foot. 

It’s a perfect method to utilize the unused space in your home. During attic conversion, your home might need structural and insulation improvements.

5. Basement Conversion

Basement conversions typically cost $50 – $100 per square foot. After all, it offers many advantages such as a game room, an extra bedroom, or a quiet workspace. This usual type of such home addition services includes moisture proofing, flooring, and electrical work.

6. Garage Conversion

If your garage is of no use, convert it into a home gym, office, or even a guest room. It’s also cheaper as the space already exists. But it still costs you around $50 – $200 per square foot.

7. Second-Story Addition

It is a big project to add a second story, especially if you will spend $200 – $500+ per square foot. If you want to double your space without losing the yard area, then this is ideal. As a result, you can get an additional space in your home without any demolition. 

8. Sunroom Addition

The cost of a sunroom ranges between $100 – $350 per square foot based on materials and temperature. If you need natural light, sunrooms are a lovely way to have that natural lighting for relaxation.

How Much Does Home Addition Services Cost in 2025?

A home addition cost depends on various factors, including which area you want to add, timeline, labor, materials, etc. 

Factors Influencing Home Addition Services 

Here are the multiple factors that influence the cost structure of home expansion: 

  • Location: Home expansion services in cities are expensive compared to local areas.
  • Type of addition: What you want to expand or add also defines the cost.
  • Labor and contractor rates: Experienced home addition professionals charge high, but also provide you with durable outcomes.
  • Urgent Addition: Urgent home expansion can cost you a bit more, as the professionals will be working overtime to complete the task.
  • Existing home condition: Old-fashioned homes require many upgrades to give them a modern look. So it may lead to higher costs.

Getting Estimates from Home Addition Contractors

When it comes to your home improvement project, it is a good idea to obtain multiple estimates. Additionally, get help from experienced home addition contractors to look over the process. Find out about their experience on similar projects and ask for design build services.

Make sure to:

  • Firstly, compare prices and timelines
  • Check references and past work
  • Further, understand the permits needed
  • Having the right team with project managers on your side is a sign of a smooth and stress-free home expansion.

Conclusion

Home addition services provide a great way of upgrading and increasing the size of your home. An option exists for every budget and need. So, whether you are planning for a large family, adding a home office, or simply need more room. After all, the key is to plan well and hire trusted professionals for simple room additions.

At Fox Hill Construction, we offer customized home-building services in Connecticut. Our team of experts provides room expansion and garage addition services under the same roof. So, contact us today to get the estimates you need to proceed firmly.

FAQs

1. How long does it take to complete a home addition?

A complete home addition service can take four months to 1 year. However, it also depends on your available resources.

2. Should I buy a new home or do a home addition? 

It depends on your needs and resources. If your home’s infrastructure is weak and can’t last long, then there’s no need to invest in the damaged area. If your home has strong foundations and don’t need a complete overhaul, then you should go for a home addition project. 

3. Should I hire a remodeling company for my room addition?

Yes, you can hire a home remodeling company like Fox Hill Construction. It is one of the best contractors for a home addition service in Connecticut.