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Turn your underused garage into a fully finished, code-compliant living space. Cascade Pro, Inc specializes in garage-to-living-space conversions throughout Bonney Lake and Pierce County — handling design, permits, construction, and final inspection.
Whether you want a rental unit, guest suite, home office, or in-law apartment, a garage conversion is one of the most cost-effective ways to add usable square footage to your Bonney Lake property.
Every garage is different, and so is every conversion. Here are the most common projects we take on:
Converting a standalone garage into a separate living unit. This is ideal for rental income or housing a family member with full privacy and independence. We add a bathroom, kitchenette or full kitchen, bedroom area, and separate entrance.
Transforming an attached garage into an extension of your home — a bedroom suite, family room, home office, or in-law apartment. We seal the garage door opening, match finishes to the existing home, and ensure seamless integration.
If you want to keep some garage storage or parking space, we can convert a portion of the garage while preserving the rest. This works well for larger two- or three-car garages.
Sometimes a garage conversion works best when combined with a small addition to meet size or layout requirements. We can extend the footprint if your lot and zoning allow it.
Every garage conversion project follows a structured process to keep timelines tight and surprises to a minimum:
A garage conversion is often the fastest and most affordable way to add a living space to your property — the structure, foundation, and roof are already there. Bonney Lake has the highest median household income ($131K) of any city in our service area, and it’s one of the fastest-growing communities in Pierce County. Homeowners here are investing in their properties for the long term.
Garage conversions in Bonney Lake are generally more affordable than ground-up construction because the shell — foundation, walls, and roof — already exists. However, costs vary based on the scope of work and the condition of the existing structure.
Key factors that influence your project budget:
We provide transparent, line-item estimates after evaluating your specific garage. No surprises — you’ll know what to expect before we start.
Yes. Converting a garage to a living space requires building permits because you’re changing the use of the structure. This involves meeting residential building code for insulation, egress, electrical, plumbing, and ventilation. We handle the full permitting process for you.
Yes, converting a garage means giving up that covered parking. Some homeowners choose a partial conversion to keep one bay for parking. We can discuss layout options during your consultation based on your priorities and local parking requirements.
Most garage conversions take 3 to 6 months from design through completion, depending on the scope of work and permitting timeline. Conversions are typically faster than new construction because the structure is already standing.
In many cases, yes — especially if the conversion is built as a permitted ADU with a full kitchen, bathroom, and separate entrance. Rental regulations vary by city, so we’ll help you understand what’s allowed on your property during our consultation.
Yes. We manage everything from initial design and structural engineering through permit submission and all inspections. You get a single point of contact for the entire project.
We remove the garage door and frame in the opening with a proper insulated wall. Depending on your design, we can add windows, a new entry door, or a combination — creating an exterior that blends with the rest of your home.
Stop letting your garage collect dust. Cascade Pro, Inc can transform it into a beautiful, functional living space — whether you’re looking for rental income, a guest suite, or room for family. We handle everything from design to final inspection.
Call us today: (253) 338-1693 or fill out the form to schedule your free consultation.
Tell us about your garage conversion project. We offer free consultations for Bonney Lake homeowners.
Bonney Lake has been one of Pierce County's fastest-growing cities over the past two decades, with its population nearly doubling as families are drawn to the area's scenic setting between Mount Rainier and the Puget Sound lowlands. This growth has driven strong home values and made property improvements here a particularly smart investment.
Much of Bonney Lake's housing was built from the 1990s onward, giving the city a relatively newer housing stock compared to Tacoma or Puyallup. However, many of these homes were built with unfinished basements, oversized garages, or large lots that are now perfect for conversions, additions, and ADU construction as homeowner needs evolve.
We understand Bonney Lake's specific building codes and work with the city's Community Development Department on permits and inspections. The terrain here — with its rolling hills, established tree cover, and varied soil conditions near Lake Tapps and the plateau areas — requires contractors with local grading and drainage expertise. Our team has completed projects across Bonney Lake neighborhoods including Emerald Hills, Lake Tapps, Sky Island, and the Fennel Creek corridor, and we bring that ground-level familiarity to every build.
