How Much Does It Cost To Finish An Attic?

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How Much Does It Cost to Finish an Attic? (2023) Bob Vila

How Much Does it Cost to Finish an Attic?


Are you considering turning your dusty, unused attic into a functional living space? Finishing an attic can be a great way to add value to your home and create additional living space without the need for an expensive extension. However, before embarking on this project, it’s important to understand the costs involved. In this article, we will explore the factors that influence the cost of finishing an attic and provide you with a general idea of what to expect.

Factors Affecting the Cost

1. Size and Complexity of the Attic

The size and complexity of your attic will play a significant role in determining the cost of the project. Larger attics will require more materials and labor, increasing the overall cost. Additionally, attics with complex layouts or structural issues may require additional work, further impacting the budget.

2. Insulation and Ventilation

Proper insulation and ventilation are essential for creating a comfortable and energy-efficient living space. The cost of insulation and ventilation will depend on the type and quality of materials used. It’s important to invest in high-quality insulation to ensure optimal energy efficiency and comfort.

3. Electrical and Plumbing

If you plan to include electrical and plumbing fixtures in your attic, such as lighting, outlets, or a bathroom, the cost will increase. The complexity of the electrical and plumbing work, as well as the distance from existing connections, will impact the overall cost.

4. Flooring and Finishes

The type of flooring and finishes you choose will also affect the cost. Hardwood floors, for example, tend to be more expensive than carpet or laminate. Similarly, high-end finishes like granite countertops or custom cabinetry will increase the overall cost of the project.

Cost Breakdown

While the cost of finishing an attic can vary significantly depending on the factors mentioned above, you can expect to spend anywhere between $20,000 to $50,000 on average. This estimate includes materials, labor, and any necessary permits or inspections.


1. Do I need a permit to finish my attic?

In most cases, yes. Adding living space to your home typically requires permits to ensure compliance with local building codes and safety regulations. It’s important to check with your local building department to determine the specific requirements for your area.

2. Can I finish my attic myself to save money?

While it’s possible to tackle certain aspects of the project yourself, such as painting or flooring installation, it’s recommended to hire professionals for more complex tasks like electrical and plumbing work. This will ensure that the project is completed safely and up to code.

3. How long does it take to finish an attic?

The timeline for finishing an attic will depend on various factors, including the size and complexity of the project, as well as the availability of contractors. On average, you can expect the process to take anywhere from a few weeks to a few months.


Finishing an attic can provide you with valuable additional living space and increase the overall value of your home. However, it’s important to carefully consider the costs involved and plan accordingly. By taking into account the factors mentioned in this article and obtaining detailed quotes from contractors, you can make an informed decision and successfully transform your attic into a functional and beautiful living area.