How Much Does It Cost to Add a Bathroom in Detroit, MI? [2026 Data]

Detroit, MI’s lower material costs and competitive contractor market keep bathroom addition costs close to the national average. The average cost to add a bathroom in Detroit, MI, is $35,105, with most projects ranging from $5,015 to $75,225. In this guide, we’ll explore how factors like your bathroom type, material choices, and local labor rates impact your total.

Bathroom Addition Cost Factors 

When budgeting for a bathroom addition in Detroit, MI, you’ll need to factor in the type, size, and location of your bathroom. Features, appliances, and material choices will also affect your final costs.

Type of Bathroom 

You’ll want to plan the type of bathroom addition based on its location in your home and your budget. Full and primary bathrooms are more common in primary bedrooms and on the second floor, while you might opt for a half bath in a first-floor guest bathroom. 

Here’s a breakdown of the average costs to add different types of bathrooms:

• Half bath: A half bath has two of four major bathroom fixtures (typically a sink and toilet), and ranges from $4,000 to $12,000 for a 15- to 25-square-foot space. You could spend as little as $3,000 for a basic conversion or as much as $15,000 for a brand-new powder room with designer fixtures.

• Three-quarter bathroom: Expect to pay $6,000 to $22,100 to add a three-quarter bathroom that’s around 25 to 40 square feet. This bathroom has a toilet, sink, and shower. You could spend as little as $4,000 if there’s existing plumbing or as much as $25,100 for a luxury bathroom addition.

• Full bathroom: A full bathroom costs $10,000 to $50,000, ranges from 40 to 100 square feet, and has a sink, toilet, shower, and bathtub. Larger layouts include a built-in cabinet or linen closet.

• Primary bathroom: A primary bathroom addition costs $22,100 to $90,300 and connects to the primary bedroom. You can spend as little as $15,000 on a basic conversion or more than $100,300 on high-end fixtures like a freestanding tub and a luxury walk-in shower.

• Jack and Jill bathroom: A Jack and Jill bathroom costs $25,100 to $100,300, depending on the fixtures and scale. These bathrooms connect two bedrooms or one bedroom to a hallway. Depending on the design, they measure 100 to 200 square feet and often have two sinks and an enclosed toilet. 

• Wet room: The average cost to add a wet room is $6,000 to $20,100, but you could spend up to $30,100 on a luxury design. Wet rooms are about the same size as a three-quarter bathroom, but costs can run higher for waterproofing the entire space and grading for drainage. 

Bathroom Size

Your bathroom’s square footage majorly influences the cost. A bathroom conversion costs $200 to $250 per square foot, whereas a bathroom addition costs $400 to $550 per square foot. 

Here’s a breakdown of the estimated costs to add a bathroom based on size: 

Bathroom Location

Where you build a new bathroom will impact its final cost. Here are the average prices to add a bathroom, based on its location in your home. 

Features and Fixtures

If you want your bathroom to have premium features, you'll pay extra. A jetted tub can cost around $10,000, for example, and bathroom vanities can cost anywhere from $500 to $4,000. 

We cover different bathroom features below so you know how much to budget for your specific project:

Materials

Materials make up about 45% of the total project cost, so the choices you make will be significant. A bathroom addition built with midrange materials costs an average of $59,200, while an upscale bathroom addition costs an average of $107,800. 

Here are some of the major cost considerations based on material quality to keep in mind:

• Luxury materials: Luxury materials can help you emulate the feel of a bathroom at a five-star hotel and last longer, but expect to pay more for spa-like features. Research the maintenance needs for materials like marble, which require more effort to clean. 

• Midrange: Midrange materials are the popular choice for Detroit, MI, homeowners. Options like porcelain tile, quartz countertops, and name-brand fixtures offer a balance between durability and price that holds up well for long-term use.

• Budget materials: Budget materials can help you save while still bringing your vision to life. Many cost-effective surfaces, like tile, are easier to clean than luxury alternatives. However, remember that the lowest-end materials aren’t as durable.

Bathroom Remodeling Pro Costs

Labor makes up the majority of your bathroom addition costs. When budgeting, you’ll need to consider local labor rates for Detroit, MI bathroom remodelers, permits, and hiring any additional pros.

Labor 

Detroit, MI, bathroom remodelers charge $50 to $150 per hour, depending on the size and scope of your project. However, many contractors will provide you with a complete, upfront estimate for the entire project, rather than breaking down costs by hour. 

When comparing quotes, confirm that your contractor holds the proper licensing and insurance. Tipping isn’t expected, but can be a thoughtful gesture if the crew goes the extra mile.

Permits

The City of Detroit requires homeowners to obtain a permit for most bathroom remodeling projects. If the job involves any plumbing, electrical, or structural work, leave $200 to $400 in your budget for permit and inspection fees. Your contractor will often handle the permitting process for you, so always confirm if those fees are reflected in your estimate.

Additional Pros to Consider Hiring 

Remodeling or building a bathroom is a big job, and bathroom remodelers in Detroit, MI, often hire subcontractors to complete some parts of the project, including:

• Plumbing: Plumbing is a significant cost when adding a bathroom. The farther your new bathroom is from existing plumbing, the more it will cost. Plus, you might need a new septic tank, depending on its current capacity and local requirements. On average, expect plumbing to cost $1,000 to $10,000.

• Electrical: The cost of getting your electrical in place varies based on whether you’re using existing wiring or if your pro will need to install everything themselves. Electrical work for a new bathroom can cost $500 to $2,500. 

• General contractor: Larger projects may require the help of a general contractor to coordinate schedules, trades, and permits. These pros typically charge 10% to 20% of the total project cost.

Does Adding a Bathroom Increase Home Value?

Adding a bathroom to your Detroit, MI, home can offer a 30% to 50% return on investment (ROI). The city’s older housing stock was often built with only one bathroom, so adding another helps to make your home more functional and increase buyer interest. With a new bathroom offering more convenience for growing families and guests, you can make your home attract more interest in the resale market.

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.

Want to help us improve our cost data? Send us a recent project quote to [email protected]. Quotes and personal information will not be shared publicly.