Basement Renovation

A basement renovation with Magnum is a complete transformation. We handle design, permits, and construction in full compliance with building codes. While you gain the flexibility to create the space you’ve always wanted, from an in-law suite to an income generating rental, or an entertainment room for the whole family. This isn’t a patch job or a quick refresh, it’s a cohesive, durable basement renovation designed to add comfort, value, and possibility to your home.

Specialized Services

Legal Basement Suites & Underpinning

A legal basement suite, also known as a secondary suite, includes its own kitchen, bathroom, and separate entrance. To qualify as legal, it must comply with municipal zoning bylaws, meet BC Building Code standards, and pass all required permits and inspections.

Sometimes, basements need more height. Basement underpinning, also called lowering, carefully extends the foundation downward to increase ceiling height from 7 feet to 8 or 9 feet or more. This transforms a cramped basement into a bright, livable space. At Magnum, we manage the entire process with precision and safety, from structural engineering and permits to excavation, waterproofing, and finishing.

Basement Renovation Ideas

Our basement holds more potential than we think. With the right design, it can become an inviting living space , from a cozy in-law suite to a modern entertainment room, home office, or gym. Renovating your basement isn’t just about finishing a lower level; it’s about unlocking hidden square footage and transforming it into a space that truly adds value to your home and lifestyle.

Basement Renovation Ideas

Our basement holds more potential than we think. With the right design, it can become an inviting living space , from a cozy in-law suite to a modern entertainment room, home office, or gym. Renovating your basement isn’t just about finishing a lower level; it’s about unlocking hidden square footage and transforming it into a space that truly adds value to your home and lifestyle.

The Real Value of a Basement Renovation

Homeowners can gain a variety of benefits from renovating their basement, including increased living space, added value to their home, enhanced comfort, increased energy efficiency, and additional rental income. These benefits can significantly enhance the overall appeal and value of their property, making it a worthwhile investment. At Magnum, we see basement renovations as an investment in lifestyle as much as in property value, one that pays you back in the way you live, not just when you sell.

FAQ

Do I need a permit to renovate my basement into a legal suite?

Yes. In Metro Vancouver, any basement renovation that involves structural work, plumbing, or electrical requires a building permit. Converting your basement into a legal suite has even stricter requirements, separate entrance, minimum ceiling height, fire separation, soundproofing, proper ventilation, and parking compliance. At Magnum, we take care of the entire permit and inspection process for you. That means your renovation isn’t just beautiful, it’s safe, code-compliant, and fully recognized by the city.

How much does it cost to turn my basement into a legal suite in Metro Vancouver?

Every home is different, but most legal suite conversions in Metro Vancouver range from $50,000 to $150,000+. Costs depend on your basement’s existing condition (ceiling height, insulation, plumbing, electrical) and what’s required to meet building code, such as fire separation, a separate entrance, and parking compliance. If you’re looking for a smaller update, explore Magnum Select—focused upgrades and smart fixes tailored to your priorities. Start small, scale as you go.

What about underpinning—when is it needed?

Underpinning is required when your basement doesn’t meet the minimum ceiling height for a legal suite or comfortable living space. In Metro Vancouver, most municipalities require at least 6’11” to 7’5” of finished ceiling height depending on use. If your existing basement is too low, we can lower the floor by excavating and reinforcing the foundation—this is called underpinning. It’s a complex process that involves structural engineering, permits, and inspections, but it’s often the only way to make an older basement code-compliant and livable. At Magnum, we handle the entire process safely, working with engineers and the city to ensure your home’s structure is protected while unlocking valuable new square footage.

Design & Engineering — What’s required?

Structural drawings are required if you’re doing underpinning or adding a legal suite—this is needed for permits and safety. Interior design is optional, but it can make your basement more functional and appealing. We offer full design services or can develop your ideas with our cabinet designer and project team.

What’s the first step in a basement renovation?

You start by booking a consultation. A dedicated project manager will visit your home, discuss your vision, and walk you through what’s possible. From there, we’ll outline the steps, approvals, and budget considerations needed to bring your basement project to life.

What if I don’t want a full basement renovation, but only want to update part of my basement?

Not every basement needs a complete overhaul. Sometimes you just want a refresh. That’s where Magnum Select comes in. Whether it’s adding storage, upgrading flooring, finishing a rec room, or improving lighting, we offer focused upgrades without the scope of a full renovation.