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

Homeowners in Chicago, IL, planning to add a bathroom can expect costs that often run higher than the national average, due to the area’s higher cost of living. In Chicago, IL, the cost to add a bathroom ranges from $5,180 to $77,700, with an average project cost of $36,260.

Several factors affect the budget, including the size of the bathroom, whether it’s a half bath or full bath, and the proximity to existing plumbing lines. Homeowners should also budget for their preferred finishes, including tile, fixtures, and cabinetry, as well as for ventilation and waterproofing, all of which contribute to the total cost.

Bathroom Addition Cost Factors 

In Chicago, IL, the cost to add a bathroom is determined by several key factors, such as the type of bathroom, its location, and the materials you select. Let’s break down how these shape the project budget.

Type of Bathroom 

The type of bathroom you add should be based on its location in your home and your budget. Full and primary bathrooms are more common in primary bedrooms and on second floors, while you might opt for a half bath near a first-floor guest room.

• Half: A half bath has two of four major bathroom fixtures, such as a sink and toilet, and ranges from $5,500 to $15,000 for a 15- to 25-square-foot space. You could spend as little as $4,000 for a basic conversion or as much as $18,000 for a brand-new powder room with designer fixtures.

• Three-quarter: Expect to pay $8,000 to $25,000 to add a three-quarter bathroom that’s 25 to 40 square feet. This bathroom has a toilet, sink, and shower. You could spend as little as $6,000 if there’s existing plumbing or as much as $28,000 for a luxury bathroom addition.

• Full: A full bathroom costs $12,000 to $60,000, ranges from 40 to 100 square feet, and has a sink, toilet, shower, and bathtub. Larger layouts include built-in cabinetry or a linen closet.

• Primary: A primary bathroom addition costs $25,000 to $110,000 and connects to the primary bedroom. You can spend as little as $20,000 on a basic conversion or as much as $125,000 on high-end fixtures like a freestanding tub and a luxury walk-in shower.

• Jack and Jill: A Jack and Jill bathroom costs $30,000 to $120,000, 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 $8,000 to $25,000, but you could spend up to $35,000 for a luxury design. Wet rooms are the same size as a three-quarter bathroom, but costs can be higher due to waterproofing the entire space and grading for drainage. 

Bathroom Size

Your bathroom’s square footage significantly influences the cost. A bathroom conversion costs $250 to $350 per square foot, whereas adding a new bathroom costs $450 to $650 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

You’ll pay extra for premium bathroom features. A jetted tub can cost $12,000 to $18,000, for example, and vanities can cost anywhere from $500 to $4,000. Here are some common bathroom features you should consider when creating your budget:

Materials

Materials make up 40% to 50% of the project cost, significantly impacting your budget. A bathroom addition built with midrange materials costs an average of $70,000, while an upscale bathroom addition costs an average of $132,500. Here are some of the major material cost considerations to keep in mind:

• Luxury: 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 offer a balance between cost, durability, and style, making them a popular choice for most bathroom additions. They provide a clean, modern look with reliable performance without the higher price tag of luxury finishes, and require standard maintenance that’s manageable for most homeowners.

• Budget-friendly: 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 Addition Pro Costs

Homeowners in Chicago, IL, should also account for local labor rates, permits, insurance, and other regional factors that can influence the project cost. Below is a breakdown of common expenses to consider when hiring a Chicago, IL, bathroom remodeler.

Labor 

Labor is a major portion of the cost when adding a bathroom in Chicago, IL, often accounting for 55% to 75% of the project budget. Bathroom remodelers in the area charge between $110 and $250 per hour, or roughly $20,000 to $90,000 or more per project, depending on bathroom size, accessibility, structural modifications, and required code upgrades.

Bathroom remodeling pros play a central role in bathroom addition projects, managing everything from demolition and framing to plumbing, electrical work, drywall, tiling, and final fixture installation. These pros also help homeowners plan efficient layouts, select appropriate materials, and ensure that the finished bathroom meets all city safety and compliance standards.

Additional Pros to Consider Hiring 

Depending on the size and complexity of your bathroom addition in Chicago, IL, you may need to hire multiple pros to ensure the work is completed safely, efficiently, and up to code. The area’s older housing stock and strict permitting requirements often make coordinated skilled labor especially important. 

• A plumber may be needed if your project involves installing new water lines, drains, or relocating existing plumbing. In Chicago, IL, plumbers charge $120 to $300 per hour, with costs increasing based on pipe access, fixture selection, and required code upgrades, especially in older homes or multi-unit buildings.

• You may need an electrician if your bathroom addition includes new lighting, exhaust fans, outlets, or heated flooring. Electricians charge $110 to $250 per hour, with additional costs possible for panel upgrades or rewiring.

• A tile installer may be necessary for waterproofing and finishing walls and floors, which are major components of most bathroom builds. Tile installation in the area ranges from $10 to $30 per square foot, depending on tile type, layout complexity, and surface preparation requirements.

Permits

Building permits for a bathroom addition in Chicago, IL, add $1,500 to $6,000 to your total, depending on the scope of work and whether plumbing or structural changes are involved. In some cases, permit fees and related inspection costs can amount to roughly 1% to 4% of the budget, especially for larger or more complex additions.

Your bathroom remodeler will typically handle the permitting process as part of their services, ensuring all plans are submitted correctly and that inspections are scheduled at required stages. However, if you are managing the project independently, it’s important to factor permit fees, inspection costs, and potential plan review expenses into your budget to avoid delays or compliance issues.

Does Adding a Bathroom Increase Home Value?

In Chicago, IL, adding a bathroom can significantly increase a property’s value and market appeal, particularly in single-family homes, condos, and older properties where additional bathrooms are in high demand. Industry estimates suggest that a professionally added bathroom can provide a return on investment (ROI) of 50% to 70%.

A new bathroom adds both convenience and functionality in a city where older housing often has limited bath-to-bedroom ratios. It can enhance livability by supporting primary suites, guest accommodations, or basement and attic conversions. In this competitive real estate market, a well-designed bathroom addition can increase buyer interest, strengthen the listing's appeal, and contribute to a faster, more favorable resale outcome.

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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