How Much Does a Basement Remodel Cost in Tacoma? [2025]
If you’re asking, "How much does a basement remodel cost in Tacoma?", you’re not alone. Finishing or upgrading your basement is one of the smartest ways to add livable space and long-term value to your home, but costs can vary widely depending on scope, style, and the existing condition of your space.
At Massey Remodel + Design, we help homeowners throughout Tacoma and the Eastside turn dark, unfinished basements into warm, functional living areas with beautiful custom details. Whether you're creating a guest suite, home gym, media room, or income-generating apartment, our team is here to guide you from concept to completion. With expert design, transparent pricing, and top-tier craftsmanship, our process is smooth and cohesive, leaving no detail behind.
What Is the Cost of a Tacoma Basement Remodel?
The Average Cost of a Tacoma Basement Remodel
In 2025, a basement remodel in Tacoma or surrounding areas typically costs between $125,000 and $275,000+. The price depends on your project’s complexity, whether you're starting with an unfinished basement or doing a high-end renovation, and the types of features you want to include (like bathrooms, kitchens, egress windows, or luxury finishes).
Basic basement remodels start around $125K+
Midrange projects are often $200K+
Luxury basement remodels start at $275K+
These prices include design, permits, construction, and project management from a trusted Tacoma basement remodeling contractor like Massey Remodel + Design.
Tacoma Basement Remodel Pricing by Quality
Basic Basement Remodel ($125K+)
Includes finishing an already framed or partially finished basement with drywall, lighting, flooring, basic electrical and plumbing upgrades, and modest trim or cabinetry.
Mid-Range Basement Remodel ($200K+)
Includes layout updates, upgraded flooring and finishes, custom cabinetry or built-ins, wet bar or kitchenette, bathroom addition, and improved insulation or moisture protection.
Custom Basement Remodel ($275K+)
Includes high-end finishes, custom design elements, multiple bathrooms, saunas or home theaters, steam showers, extensive layout changes, or a full basement apartment/in-law suite with separate entrance.
Cost Per Square Foot for Basement Remodels in Tacoma
Basement remodels in Tacoma typically range from $150 to $300+ per square foot, depending on:
Whether the basement is unfinished or partially finished
Ceiling height and whether excavation or modifications are needed
Plumbing and electrical upgrades
The addition of bathrooms, kitchens, or egress windows
Moisture-proofing, sump pumps, or insulation needs
Compared to national averages, Tacoma basement renovation costs trend slightly higher due to code requirements, permitting, and the craftsmanship standard expected in the Pacific Northwest.
ROI for Tacoma Basement Remodels
According to the 2024 Cost vs. Value Report, a basement remodel in the Seattle-Tacoma area typically yields a 60-70% return on investment, depending on the type of project. But ROI isn’t just financial, finishing your basement gives you more usable square footage, increased comfort, and often the flexibility to add a rental unit or accommodate multi-generational living.
Basements that add a legal bedroom, bathroom, or separate entry tend to offer the highest resale value and functionality.
Tacoma Basement Remodeling Pricing by Type
Basement Finishing Cost in Tacoma
Finishing an unfinished basement into livable space usually starts around $125K and can exceed $200K depending on complexity. Includes framing, drywall, lighting, electrical, flooring, and basic trim.
Basement Bathroom Remodel Cost in Tacoma
Adding or remodeling a bathroom in your basement ranges from $25K to $60K, depending on whether plumbing rough-ins are present. Expect higher costs for steam showers or luxury fixtures.
Basement Bedroom Remodel Cost in Tacoma
Adding a code-compliant bedroom with egress window, insulation, and closet typically costs between $20K and $45K.
Basement Expansion Cost in Tacoma
Excavating or expanding a basement involves major structural work and often costs $75K–$150K+, depending on access, soil conditions, and foundation requirements.
Luxury Basement Remodel Cost in Tacoma
Spa bathrooms, saunas, custom bars, full kitchens, home theaters, and smart tech integrations fall into the $275K–$400K+ range.
In-Law Suite or Basement Apartment Remodel Cost in Tacoma
Legal secondary suites with kitchenettes, separate entrances, and bathrooms typically cost $225K to $325K+, depending on size and finish level.
Gym, Storage, or Flex Space Cost in Tacoma
Creating a home gym, hobby space, or upgraded storage area usually costs between $25K and $75K.
Playroom or Rec Room Cost in Tacoma
Basement game rooms or family lounges with built-ins and lighting enhancements run $50K–$150K.
Basement Home Office Cost in Tacoma
Soundproofed offices with storage, custom desks, and smart lighting range from $40K–$100K.
Basement Remodeling Costs by Neighborhood or Area
Auburn Basement Remodel Cost
Auburn’s homes often include unfinished or partially finished basements that are ideal for adding bedrooms, recreation rooms, or home offices. Many homeowners choose to take advantage of this extra square footage to create flexible living areas for growing families. Remodels here typically range from $125K–$200K, depending on layout changes and finishes.
Burien Basement Remodel Cost
Burien’s older homes often have low basement ceilings or outdated infrastructure, which may require structural updates before finishing. These improvements can include digging down to increase ceiling height or upgrading plumbing and electrical systems. Expect basement remodels in this area to cost $150K–$250K, with luxury finishes increasing the total.
Black Diamond Basement Remodel Cost
Homes in Black Diamond often sit on larger rural lots, offering significant potential for basement expansion. These projects frequently focus on creating spacious living rooms, hobby spaces, or guest quarters. Basement finishing here starts around $135K and increases with larger footprints and high-end finishes.
Bonney Lake Basement Remodel Cost
Bonney Lake is popular with growing families who want more usable space without moving. Basement remodels often include guest suites, children’s playrooms, or entertainment spaces. Projects typically range from $140K–$225K, with larger family-oriented layouts pushing toward the higher end.
Covington Basement Remodel Cost
In Covington, basements are often transformed into home gyms, offices, or family movie rooms. Many projects also include improved lighting and storage to maximize functionality. Remodels here average $125K–$200K+, depending on the features added.
Des Moines Basement Remodel Cost
Basements in waterfront Des Moines homes often require advanced moisture protection to withstand the marine climate. Many remodels also include bright finishes and open layouts to make these spaces feel less basement-like. Expect costs from $150K–$275K+ depending on waterproofing needs and upgrades.
Edgewood Basement Remodel Cost
Edgewood homeowners often convert basements into in-law suites or rental units to maximize property value. These projects typically involve adding a full bathroom, kitchenette, and separate entry. Remodels here often start at $200K and rise with added amenities.
Milton Basement Remodel Cost
Milton’s mid-century homes often feature small, partially finished basements that homeowners want to make more functional. Common upgrades include home offices, rec rooms, and modernized laundry areas. Costs generally range from $125K–$180K, depending on scope.
Normandy Park Basement Remodel Cost
Normandy Park homes tend toward upscale renovations, and basements are no exception. Home theaters, wine cellars, and luxury finishes are common here. Remodels range from $200K–$325K, with top-tier projects going even higher.
Puyallup Basement Remodel Cost
Puyallup homeowners often choose to finish their basements as extended family spaces, complete with guest bedrooms and living areas. These remodels frequently include custom storage and open entertainment layouts. Average costs run $140K–$220K, depending on finishes and structural changes.
Ruston Basement Remodel Cost
Basements in Ruston are often compact, requiring efficient, space-savvy designs. Homeowners here focus on maximizing every square foot with custom built-ins and multi-functional layouts. Remodels typically range from $135K–$200K.
Enumclaw Basement Remodel Cost
Enumclaw’s rustic homes often use basement remodels to create flexible spaces like gyms, playrooms, or hobby areas. Natural finishes and durable flooring are common to match the area’s style. Projects generally cost $125K–$190K, depending on upgrades.
Federal Way Basement Remodel Cost
Basements in Federal Way vary widely in size and condition, leading to a broad range of remodeling options. Many homeowners add bedrooms, entertainment areas, or multi-use family rooms. Pricing typically runs from $140K–$210K.
Fircrest Basement Remodel Cost
Fircrest is known for its family-friendly layouts, and basement remodels often reflect that. Popular upgrades include playrooms, game rooms, and guest accommodations. Most projects cost between $150K–$225K, depending on finishes and amenities.
Gig Harbor Basement Remodel Cost
Gig Harbor’s upscale homes often feature high-end basement renovations. Saunas, wine cellars, and luxury home theaters are common additions. These premium remodels typically range from $200K–$350K+.
Kent Basement Remodel Cost
Kent’s diverse housing means basement projects range from simple finishing to complete luxury conversions. Many homeowners choose to add guest suites, gyms, or home offices. Remodels generally fall between $130K–$225K.
Lake Tapps Basement Remodel Cost
Lake Tapps waterfront homes often require sump pumps, dehumidification systems, and other moisture-control measures. Many remodels also capitalize on scenic views with large windows and walk-out designs. Costs typically range from $150K–$275K.
Sumner Basement Remodel Cost
Basements in Sumner often become social spaces, with wet bars, family rooms, or guest accommodations. These remodels emphasize comfort and entertaining. Budgets usually range from $140K–$230K.
Tacoma Basement Remodel Cost
Tacoma’s basements range from unfinished storage spaces to partially finished bonus rooms. Remodels may include everything from basic finishing to full apartment conversions. Costs typically run from $125K–$300K+, depending on layout and desired features.
University Place Basement Remodel Cost
University Place homeowners often create multi-purpose basements that serve as home offices, playrooms, or fully equipped guest suites. These spaces are designed for both comfort and function. Pricing averages $150K–$275K+, depending on upgrades.
Factors That Influence Basement Remodel Pricing
Existing Condition of the Basement
The current state of your basement plays a huge role in determining cost. Unfinished basements are often easier and less expensive to work with than those requiring major demolition or extensive prep work. A clean, raw space is typically the most cost-effective starting point.
Moisture or Waterproofing Requirements
Addressing moisture issues before finishing a basement is critical for long-term durability. This may involve installing vapor barriers, sump pumps, French drains, or advanced waterproofing systems. These measures can add $5K–$20K+ to your project but protect your investment for years to come.
Layout Changes or Wall Additions
Adding walls to create separate rooms or removing load-bearing walls to open up space increases both labor and material costs. Framing, drywall, and finishing for new rooms can add $10K–$25K to a project. Open-concept basements may be less expensive but often require strategic structural work.
Adding a Bathroom or Kitchenette
Bathrooms and kitchenettes greatly enhance basement functionality but come at a premium. A new bathroom typically costs $25K–$60K, while a kitchenette ranges from $30K–$75K depending on appliances and finishes. These features are especially popular for guest suites and rental units.
Permits & Building Code Requirements
Basement remodels in Pierce and King counties must meet strict building codes, including egress, ventilation, and electrical safety. Permits and inspections generally add $1K–$5K to the project. Working with a contractor familiar with local requirements helps avoid costly delays.
Ceiling Height & Egress Windows
Low ceilings can limit usability and may require excavation or structural changes to increase height. Egress windows, required for legal bedrooms, cost $3K–$10K+ each but improve safety and natural light.
Custom Storage or Built-Ins
Built-in shelving, benches, and entertainment centers can make a basement feel more functional and polished. These upgrades typically range from $5K–$20K depending on complexity and materials.
HVAC or Electrical Upgrades
Adding heating, cooling, or electrical capacity often requires extending ductwork, running new circuits, or upgrading the panel. These improvements typically cost $5K–$15K+ and ensure your new space is comfortable year-round.
Insulation & Soundproofing
Proper insulation keeps a basement comfortable and energy-efficient, while soundproofing creates a quieter environment. Using materials like Roxul insulation or QuietRock drywall adds $3K–$12K to the budget.
Design, Drawings, & Engineering Fees
Partnering with a design-build firm like Massey Remodel + Design ensures your basement is both functional and up to code. Design and engineering services—often including 3D renderings—typically cost $10K–$20K+, but they help streamline permitting and construction.
Pro Tips to Plan Your Basement Renovation Budget Wisely
Define Your Goals Before Getting Estimates
Clarity helps you prioritize and get accurate quotes.
Budget for Hidden Surprises (Moisture, Mold, etc.)
Unseen issues are common, so we suggest planning for a 10–20% contingency.
Focus on Function First
Think about how you’ll use the space daily before picking finishes.
Know Permit & Egress Window Rules
Understand what makes a space legally habitable in Tacoma.
Consider ROI if You Plan to Sell
Bathrooms, bedrooms, and separate entrances have the best returns.
Invest in Lighting & Layout — It Pays Off
Natural light and smart lighting upgrades make basements feel bright and livable.
Phase the Project if Budget is Tight
You don’t have to do it all at once. Focus on essentials, then add luxuries later.
Work with a Design-Build Team
Fewer miscommunications, smoother workflow, and one point of accountability.
Why Work with Massey Remodel + Design for Your Tacoma Basement Remodel
Massey Remodel + Design is a veteran-owned, family-operated remodeling company proudly serving Tacoma and the surrounding communities. We specialize in high-quality basement remodels with an emphasis on smart design, energy efficiency, and seamless execution.
From the first 3D rendering to the final walkthrough, our in-house team of designers, project managers, and craftsmen handle everything. We back our work with a 3-year warranty and a reputation built on collaboration, communication, and care.
Whether you’re creating a guest suite, gym, or lounge-worthy media room, we’re here to make it happen.
Ready to Remodel Your Tacoma Basement?
Let’s talk about your basement renovation goals and bring your space to life.
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