How Much Does a Room Addition Cost in Minneapolis, MN? [2026 Data]

The average cost of a room addition in Minneapolis, MN, is $50,304, and most residents pay somewhere between $21,903 and $76,085. Your costs will depend mostly on the size of the room you’re adding and the type of room you want. Prices are higher than in most other cities, mostly because the local cost of living—which influences labor fees—is 16% above the national average.

Room Addition Cost Factors

You could pay as little as $7,336 for a room addition in Minneapolis, MN, but larger and more involved projects, especially those requiring utility connections, can drive costs up to $131,000 or higher. Consider the following cost factors to get an accurate estimate for your project.

Room Size

The size of your new room is one of the biggest factors that affect the overall cost, with each additional square foot you want adding between $85 and $210 per square foot to your total. Basically, the bigger the room you want to add on, the more you can expect to pay for the project. Here's a breakdown of average prices.

Room Type

Different types of rooms have different installation requirements, which can tack onto the cost of your addition. For example, if you're adding a primary suite with an attached bathroom, you'll need to pay extra for things like bathroom plumbing, which typically adds between $1,570 and $4,190 to your total.

Here's what you can expect to pay, depending on the type of room you want to add.

Bedroom

A bedroom addition costs $52,400 on average, depending on its size and features. Larger bedrooms with more space, windows, and walk-in closets will all drive costs higher. Small bedrooms for kids or guests will be much easier on your wallet. Adding a bedroom can increase your home’s value and make it more appealing to potential buyers when it comes time to sell.

Bathroom

Adding a new bathroom costs $23,100 in Minneapolis on average, but it significantly increases the value of your home. You can expect a 47% to 67% ROI on your bathroom addition, which makes it one of the better options for adding value. A half bathroom, which includes only a sink and toilet, takes up much less space and is a more affordable project, costing around $4,400 to $12,600.

Bedroom and Bathroom (Primary Suite)

The cost to build a primary bedroom with a bathroom ranges from $31,400 to $104,800, but it can vary quite a bit depending on the details. For example, if you add a particularly large suite or high-end features, like custom cabinetry and marble countertops, the project can easily climb beyond the normal range.

Kitchen

A new kitchen installation costs between $36,700 and $99,600 in Minneapolis, with an average price of $68,100. Certain features like islands and appliances account for a lot of that price, so it’s possible to cut expenses in many ways.

Bump-Out Addition

A bump-out addition expands a current room with a new section of foundation and exterior construction, and it often adds new amenities to the new space. Bump-out additions cost around $4,200 to $31,400, depending on the amount of space you’re adding. Because there’s little electrical work and rarely any plumbing, bump-outs are more affordable than many additions.

In some areas, bump-out additions aren’t always plausible due to small lot sizes. Fortunately, the average property size in Minneapolis is 0.21 acres or just under 10,000 square feet, so most residents will have plenty of room to build a bump-out addition without running into setbacks.

Dining Room

Are you looking to create a separate dining room or build a new version of your current dining room? Expect to pay between $3,140 and $52,400 in Minneapolis. High-end lights or chandeliers, a wet bar, and other amenities will add significantly to the price.

Basement

Finishing a basement refers to converting a basement space into a fully livable room complete with lights, heating, and more. The cost to finish a basement ranges from $15,700 to $78,600, depending on the amount of work you need to do. A half-finished basement will take notably fewer materials, for example.

Most homes in Minneapolis have basements, as this is the most popular foundation type in colder climates, where underhome areas protect utility lines from freezing. As such, most residents in the city will have this option, and it’s one of the most popular ways to add living space to a home in the area.

Attic

Finishing an attic is similar to finishing a basement, although the addition tends to be simpler and less expensive. Most owners finish an attic to turn it into an extra bedroom, office, or lounging area. Expect to spend between $10,500 and $52,400 for the cost of finishing an attic.

Garage Conversion

A garage can serve many purposes, but it’s often an excellent spot for a game room, extra bedroom, or office. It’s also a lower-cost project than many kinds of additions, with less wiring and plumbing work needed. Converting a garage to a room costs between $6,290 and $28,300.

Room Above the Garage

Adding a bonus room above the garage costs an average of $125 per square foot, with the average project totaling $47,200. However, the cost varies based on factors like whether you need to build a staircase or change the structure of your existing garage. Significant structural changes can add around $10,500 to $41,900 or more.

Laundry Room

Most residents in Minneapolis pay between $5,240 and $7,340 on the cost of adding a laundry room to their home. However, if you decide to upgrade your appliances, replace or install a sink, or install more shelving, the cost can reach as high as $10,500 or more.

Mudroom or Entryway

Thanks to their small size and nonexistent plumbing requirements, mudrooms are often the least expensive rooms to add on. A 36-square-foot mudroom at the entrance of a home or a new entryway costs between $3,770 and $7,550, depending on the type of flooring and storage you add.

Mudrooms can be problematic in areas where square footage is limited, as sacrificing living space for a formal entryway can actually decrease value. In Minneapolis, the average home is just under 1,950 square feet, so most residents have plenty of space to convert a small section to a mudroom without detracting from property value or utility.

Sunroom

Depending on construction, a window-filled sunroom can serve as a play area, a second living room, or even a small indoor greenhouse. Expect the average three-season sunroom to cost between $10,500 and $41,900.

Sunroom additions are much more popular in warm climates, where they’re usable for more of the year. Homeowners in the cold climate of Minneapolis will more often build a bump-out addition that’s heated, which gets more use in northern states.

In-Law Suite

Adding an in-law room or rooms to your home can require numerous special considerations, including privacy and access concerns that could increase the project's cost. Adding an in-law suite costs around $46,100 to $104,800, depending on its size and complexity.

Another option for an in-law or guest suite to consider is building an accessory dwelling unit (ADU) or a home addition. The ADU regulations in Minneapolis allow for one ADU per residential lot that’s up to 1,300 square feet or 16% of the lot size, so most residents will have this as a room addition option.

Remodeling Pro Costs

Labor accounts for 40% to 60% of your total, which puts average labor costs between $20,100 and $30,200 when you hire a remodeling pro in Minneapolis, MN. Labor costs more in the area than it would in most others, largely because the local cost of living is 19% higher than the national average, and labor fees fluctuate with living costs.

In addition to labor charges, your remodeling professional will charge you for permit fees, which the local building department requires for most room addition projects. The city assesses fees based on the total project cost, with a fee of $955 for the first $50,000 worth of work plus $15 for every additional $1,000 worth of work. Given the average cost of a room addition in Minneapolis, you’re looking at an average permit fee of $965.

Additional Pros to Consider Hiring

Room additions are complicated projects, so you may need to call in multiple professionals, depending on your goals. You might need to consider the following costs, in addition to base prices.

• Electrician: $1,210

• Plumber: $1,050–$10,500

• HVAC professional: $2,100–$3,150

• Structural engineer: $75–$265 per hour

• Architect: $135–$265 per hour

• Foundation contractor: $10–$40 per sq. ft.

Does Adding a Room Increase Home Value?

Adding a room to your home will almost always increase the value, especially if you add living space to your home’s footprint. On average, you’ll get the highest returns from a bathroom addition, which delivers a return on investment of up to 70%. Finishing a basement is another outstanding value add in Minneapolis, as this effectively adds usable square footage without the need for foundation work or ground-up construction.

How Angi Gets Its Local Cost Data 

To help homeowners plan their next project, Angi provides readers with carefully researched cost data and upholds strict editorial standards. We start with national average project costs, which we collect by analyzing competitor information, retailer material costs, and input from professional contractors. We then apply local price index data to calculate location-specific estimates that reflect what homeowners typically pay in their local area. To do that, we use data from the U.S. Bureau of Economic Analysis (BEA), including its Regional Price Parities (RPPs), which measure price differences across cities. This helps us account for differences in labor, materials, and overall cost of living, so estimates in higher- or lower-cost areas better reflect real-world local pricing.

Every estimate undergoes a thorough editorial review to verify accuracy, consistency, and alignment with observed market conditions.

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