Large Bathroom Remodel Cost in 2025

Remodeling a large bathroom can be an exciting opportunity to create a luxurious, functional retreat, but it also comes with a higher price tag compared to smaller spaces. In 2025, the cost to remodel a large bathroom typically ranges from $20,000 to $50,000+, depending on materials, labor, layout complexity, and custom features. Homeowners investing in premium upgrades—such as steam showers, double vanities, or radiant floor heating—can expect to be at the higher end of that range. Let’s explore what defines a large bathroom, what drives up the cost, and why this type of remodel can add serious value to your home.

What Is Considered a Large Bathroom?

A large bathroom is generally defined as being 100 square feet or more, often including a combination of features such as a double vanity, separate shower and bathtub, a toilet enclosure, and sometimes even a dressing or sitting area. These bathrooms are commonly found in primary/master suites, high-end homes, or custom builds.

Examples of large bathrooms include:

• A 10×12 ft primary bathroom with dual sinks, a freestanding tub, and a walk-in shower.
• A luxury en-suite with an adjoining walk-in closet, makeup vanity, and built-in storage.
• Bathrooms with spa features like sauna units, steam showers, or fireplace elements.
  

Because of the square footage and feature count, large bathrooms require more materials and labor, which significantly increases the cost compared to standard 5×8 layouts.

How Remodeling a Large Bathroom Can Boost Home Value

A well-executed large bathroom remodel not only enhances day-to-day comfort but can also significantly increase your home’s resale value—especially in the mid- to high-end market. According to Remodeling Magazine’s Cost vs. Value report, upscale bathroom remodels in 2024–2025 can recoup up to 55–60% of their cost at resale.

Luxury features like:

• Frameless glass showers
• Heated floors
• Dual vanities with quartz countertops
• Freestanding soaking tubs
• Custom lighting and ventilation systems
  

…are highly desirable to today’s buyers and can set your property apart. In competitive real estate markets, buyers expect the primary bathroom to reflect a level of finish that aligns with the rest of the home. A dated or cramped layout can be a dealbreaker in otherwise premium listings.

Large Bathroom Remodel vs. Renovation: What’s the Difference?

Though the terms remodel and renovation are often used interchangeably, they mean different things—especially in large bathrooms.

• Remodel involves changing the layout or structure of the bathroom. This could mean relocating plumbing, tearing down walls to expand the space, or converting a tub/shower combo into separate fixtures. Remodels often require building permits, architectural planning, and more skilled labor.
• Renovation, on the other hand, refers to updating existing elements without changing the overall layout. This could include replacing cabinetry, swapping out old tiles for new ones, upgrading lighting, or refinishing surfaces.

Large Bathroom Remodel vs. Renovation: Key Differences

Example: Removing a garden tub to build a custom walk-in shower with a bench and dual rainfall heads is a remodel. Replacing countertops and adding new mirrors and lighting, without changing plumbing or layout, is a renovation.

Due to the size and complexity of large bathrooms, even cosmetic renovations can run high—especially when premium materials or custom-built features are involved.

Factors That Influence Large Bathroom Remodel Costs

Several variables contribute to the cost of remodeling a large bathroom. Below are the most important factors to consider:

1. Size and Layout Complexity

Larger bathrooms naturally require more square footage of tile, cabinetry, and flooring. If the layout is changing (e.g., moving a toilet or expanding the shower), labor and structural costs will increase. For instance, rerouting plumbing for a toilet relocation alone can add $1,000–$2,500 to the total cost.

2. Material Quality

High-end materials such as marble, natural stone, quartz, or custom tile mosaics can dramatically increase cost. A quartz double vanity countertop might cost $1,200–$2,000+, while natural stone floor tiles can range from $10 to $30 per square foot installed.

3. Plumbing and Electrical Upgrades

Adding extra sinks, installing a freestanding tub, or upgrading to an innovative shower system can drive up plumbing costs. Similarly, modern large bathrooms often require enhanced electrical work to support multiple lighting zones, underfloor heating, or smart tech features. Expect electrical upgrades to add $2,000–$5,000, depending on the scope.

4. Fixture Count

More space typically means more fixtures—dual vanities, separate showers and tubs, additional lighting, and sometimes multiple storage zones. Each additional item increases both material and installation costs. A large custom shower alone can cost $5,000–$10,000 depending on features and finishes.

5. Luxury Features

Upscale bathrooms often include:

• Heated floors ($1,500–$4,000 depending on coverage)
• Steam showers ($4,000–$8,000 installed)
• Smart mirrors and lighting ($500–$2,000+)
• Custom built-ins or linen closets
• Integrated sound or media systems
  

These add both comfort and value—but at a premium.

Key Cost Components in a Large Bathroom Remodel

Understanding what goes into a large bathroom remodel helps you better estimate costs and make informed decisions about where to splurge or save. These core elements often make up the bulk of your budget:

Toilet

While it may seem like a minor fixture, toilet upgrades can range from standard models ($300) to luxury, wall-mounted or smart toilets ($1,500+). Features like bidets, heated seats, and automatic flushing are increasingly common in upscale bathrooms.

Double Vanity

A double vanity offers functionality for shared spaces and contributes to a polished, symmetrical look. Prefabricated models start around $1,500, but custom-built vanities with high-end finishes and quartz or marble tops can cost $4,000–$6,000 or more, especially if paired with upgraded plumbing and lighting.

Custom Cabinetry

Custom cabinetry, including linen towers, recessed shelving, and under-sink organizers, adds both luxury and practicality. Built to fit your layout precisely, this can range from $3,000–$8,000+ depending on materials, finishes, and features like soft-close drawers or built-in electrical outlets.

Soaking Tub

Freestanding or drop-in soaking tubs elevate the space and provide spa-like relaxation. Acrylic tubs start at $1,500, while high-end cast iron, stone resin, or copper models can exceed $6,000. Installation costs also vary depending on placement and plumbing complexity.

Separate Shower Enclosure

Walk-in showers with frameless glass, rain heads, body sprays, and custom tile are a focal point of luxury bathrooms. Basic models cost $3,500–$5,000, while fully customized showers with dual heads, benches, and waterproof lighting can top $10,000.

Lighting Zones

Layered lighting—ambient, task, and accent—enhances both aesthetics and functionality. Expect to pay $1,500–$3,000 for integrated lighting systems, especially if they include dimmers, sconces, and moisture-resistant fixtures.

Tile or Stone Walls

Floor-to-ceiling tile or stone walls can significantly impact the remodel cost. Ceramic or porcelain tiles cost $10–$20 per square foot installed, while premium options like marble or travertine can go up to $40–$60 per square foot.

Smart Technology

Smart tech can include digital showers, LED-integrated mirrors, heated floors, or app-controlled lighting and sound. These elements add convenience and resale appeal but can also add $2,000–$6,000+ depending on the level of integration.

Built-In Storage

Custom built-ins, such as recessed niches, cabinetry, or benches, increase usability and reduce clutter. Costs range from $500 for simple niches to several thousand dollars for custom cabinetry with lighting or mirrored panels.

Common Labor Costs for Large Bathroom Remodel

Expanded Insight into Labor Costs

Labor is often the largest single line item in a large bathroom remodel, making up 40–60% of the total project cost. The reason? Each element—a custom tile shower or a double vanity with unique plumbing—requires specialized skill to install correctly and safely. In larger spaces, work takes longer and often requires multiple trades to work in coordination. For example, a steam shower installation might involve not only a tile installer and plumber but also an HVAC tech and electrician to ensure safe and effective venting and power management. Depending on your timeline and location, labor shortages or premium contractor rates can also impact your overall budget.

How Much Does a Large Bathroom Remodel Cost?

When budgeting for a large bathroom remodel, the total cost will vary significantly based on the quality of materials, the scope of layout changes, and the luxury features included. Below is a tiered breakdown to help you understand what’s typically included at each price point.

These estimates provide a general framework, but real costs depend on geographic location, contractor pricing, and your specific design preferences. For instance, homeowners in urban markets like San Francisco or New York can expect higher labor and material costs than those in suburban or rural areas.

Budgeting Tips for a Large Bathroom Remodel

A large bathroom remodel can become expensive quickly, but with thoughtful planning, you can stay on track financially while still achieving your vision. Below are smart budgeting strategies that help balance cost, style, and function.

Set Priorities Early

Before choosing finishes or fixtures, outline what matters most to you. Is a freestanding tub a must-have? Do you need expanded storage or dual vanities? Identifying non-negotiables allows you to direct your budget toward the features that offer the most value for your lifestyle.

💡 Example: A couple with young kids may prioritize a large walk-in shower and plenty of storage over a high-end soaking tub.

Phase the Project (If Needed)

If your dream remodel exceeds your current budget, consider splitting the project into phases. For instance, complete the structural and plumbing work first, then upgrade finishes and accessories in a second round. This approach allows you to move forward without sacrificing quality.

Example: Install the new shower and heated floors now, and delay the custom cabinetry or high-end lighting until next year.

Allocate Funds for Surprises

Large bathrooms, especially in older homes, often reveal hidden problems like outdated plumbing, structural damage, or mold. Set aside 10–20% of your budget for contingencies to avoid financial stress if issues arise mid-project.

Example: A homeowner may plan a $40,000 remodel but keep $5,000–$8,000 reserved in case the subfloor beneath the tub needs replacement.

Mix Splurge and Save Items

Not every element of your remodel needs to be top-of-the-line. Combine high-impact splurges—like a statement tub or smart shower system—with cost-effective choices in areas that won’t make or break the design, like cabinet hardware or standard tile.

Example: Pair a $3,000 freestanding tub with budget-friendly matte black fixtures and stock cabinets dressed up with upgraded countertops.

Design Tips to Elevate Style, Flow, and Function in a Large Bathroom

A larger space opens the door to creative design opportunities—but it also needs to feel intentional, cohesive, and balanced. These tips will help you design a large bathroom that delivers on both luxury and livability.

Create a Spa-Like Layout

Think beyond basic functionality and aim for a calming, spa-inspired environment. Include features like a soaking tub, walk-in rain shower, and soft ambient lighting. Use natural textures like wood or stone to add warmth and create a relaxing atmosphere.

Design Note: Place the tub under a window for natural light and a sense of retreat, while tucking the toilet into a discreet alcove or separate water closet.

Zone for Functionality

Divide the space into clear zones—grooming, bathing, dressing, and storage. This approach improves flow and ensures every square foot is used effectively. Use partitions, partial walls, or changes in material (like flooring or tile) to define these zones without closing off the room.

Example: Use floor tile to subtly differentiate the shower area from the vanity and dressing space, or install a partial wall between the tub and toilet.

Focus on Visual Cohesion

Choose a consistent design language—color palette, material types, metal finishes—to maintain harmony throughout the room. Mixing too many competing styles or finishes can make the space feel cluttered or disjointed, even if it’s large.

Pro Tip: Stick to no more than 2–3 finishes (e.g., brushed brass, warm wood, and matte white) and repeat them throughout fixtures and hardware.

Design a Custom Lighting Plan

Layered lighting makes a big difference in both ambiance and usability. Include ambient ceiling lighting, task lighting for vanities, and accent lighting to highlight architectural or decorative features. Dimmers and smart controls help tailor the experience throughout the day.

Example: Install recessed LED lighting around the ceiling, sconces at face level by each mirror, and under-cabinet lighting to softly illuminate the vanity floor at night.

Common Mistakes to Avoid When Remodeling a Large Bathroom

While a large bathroom offers plenty of creative freedom, it’s also easy to fall into design and planning traps that can reduce functionality or inflate costs. Here are some of the most common mistakes to avoid:

Wasting Valuable Space

With more square footage, it’s tempting to leave open areas unused. But empty space without a purpose can feel awkward. Instead, consider adding a linen closet, seating area, or double vanities to maximize your layout.

Ignoring Natural Flow

A bathroom should support an intuitive flow—from shower to sink to storage. Placing the toilet or shower in hard-to-reach corners can disrupt usability. Prioritize a floor plan that feels comfortable and efficient.

Overdesigning Without Function

Luxury features like chandeliers, ornate tile patterns, or excessive shelving can overwhelm the space if they don’t add practical value. Design with purpose by choosing finishes and fixtures that are both beautiful and functional.

Not Future-Proofing the Space

Think long-term. Consider accessibility features like a curbless shower, wider doorways, or grab bar reinforcements—even if you don’t need them now. These additions can increase resale value and save on costly retrofits later.

Skimping on Waterproofing and Ventilation

No matter the size, moisture is still the biggest enemy of a bathroom. Cutting corners on waterproofing membranes or skipping a quality exhaust system can lead to mold, peeling paint, and long-term damage. Always invest in proper moisture protection.

Is It Worth Remodeling a Large Bathroom?

Absolutely—if done right. A large bathroom remodel can offer significant returns in both home value and quality of life. Modern upgrades and thoughtful layouts enhance daily routines and create a spa-like retreat that adds a luxurious touch to your home.

A well-designed large bathroom can become a standout selling point in the real estate market, from dual vanities to walk-in showers and smart tech features. It’s especially worthwhile if your current space feels outdated, poorly designed, or underutilized.

However, knowing when to remodel and when a simple refresh will suffice is key. If your bathroom’s bones are good and the layout works well, updates like new tile, paint, lighting, and fixtures might provide the impact you want without the high costs of a full gut renovation.

Ultimately, remodeling a large bathroom is worthwhile when it aligns with your lifestyle goals, enhances function, and supports long-term home value.

A large bathroom remodel is more than just a home upgrade — it’s an investment in comfort, functionality, and long-term value. More space brings more opportunity to design a luxurious, spa-like environment tailored to your lifestyle. But that space also requires smart planning, budgeting, and execution to avoid common pitfalls.

By understanding cost factors, prioritizing quality materials and labor, and designing with both style and practicality in mind, you can transform your bathroom into one of the most impactful spaces in your home. Whether you’re preparing to sell or planning to stay for years, a well-executed remodel can elevate your daily routine and significantly boost your property’s appeal.

Eric Jensen

Eric is the founder and president of Badeloft USA. He has been the president of Badeloft’s US division for over ten years and oversees all marketing and branding aspects of Badeloftusa.com.
His expertise lies in small business development, sales, and home and bathroom industry trends and information.

Contact us with any business related inquiries.