9 Home Additions That Add the Most Value (And What They’ll Cost)
Looking to add value to your home without moving? Home additions can be a great solution! In this article, we’ll cover nine types of home additions that can boost your home’s value. Plus, we’ll give you an idea of each project’s cost. Let’s dive in!
Room Addition (Bump-Out)
A room addition, or bump-out, involves adding a new room or expanding an existing one. This can be a guest bedroom, a den, or even a bigger kitchen. Depending on the size and whether plumbing is needed, costs range from $10,000 to $50,000+.
Sunroom
A sunroom brings the outdoors in, giving you a light-filled space to enjoy year-round. You can choose a three-season or four-season sunroom, which is pricier due to better insulation. Prices vary between $5,000 and $80,000+, based on the size and materials used.
Garage Conversion
If you don’t use your garage for parking, why not convert it into something useful? Home gyms, game rooms, or even in-law suites are popular choices. It’s a more budget-friendly option, costing between $6,000 and $30,000+, depending on the work required.
Over-Garage Addition
An over-garage addition can add a guest room or home office without using up extra land space. It’s perfect for homes with small lots. Depending on insulation and other structural needs, the cost ranges from $10,000 to $40,000+.
Finished Basement
Got an unfinished basement? Transform it into a playroom, home office, or even a small apartment. A finished basement is one of the best ways to add value, and costs can range from $4,000 to $75,000+, depending on what you include in the renovation.
Attic Conversion
Attic conversions are great for homeowners with unused space. Depending on your attic’s size, you can add a bedroom or home office. The cost is relatively low, ranging from $7,500 to $35,000+, but it depends on the complexity and whether any structural changes are needed.
Accessory Dwelling Unit (ADU)
An ADU is a separate living space on your property. It can be used as a guest house, rental unit, or in-law suite. ADUs can be expensive, typically costing $60,000 to $300,000+, but they can provide long-term benefits in rental income or added living space.
Conventional Addition
A conventional addition involves adding multiple rooms or even a whole new wing to your home. This is ideal for those committed to staying in their home long-term. It’s a big investment, costing between $50,000 and $500,000+, depending on how much space you add.
Boost Home Value with Smart Additions
Adding space to your home can be a smart way to boost its value. From small room additions to full second-story builds, there’s an option for almost every budget and need. So, which one would you choose? Whatever you decide, make sure it suits your lifestyle and long-term goals!
Sources
9 Types of Home Additions That Add the Most Value—And What They Cost
Top 9 Renovations to Increase Home Value in 2025
