How do I choose between single vanity and double vanity for a Vancouver bathroom renovation?

The choice between single and double vanity comes down to available wall space, bathroom layout, and how many people use the bathroom daily — and in Metro Vancouver's condo-heavy market, most bathrooms simply do not have the space for a double vanity. A double vanity requires a minimum of 60 inches of wall width, and realistically 72 inches for comfortable use, which rules out most Vancouver condo bathrooms and many single-family home ensuites.

Measure your available wall space first. A single vanity typically ranges from 24 to 48 inches wide, while a double vanity starts at 60 inches and goes up to 72 inches or wider. In addition to the vanity itself, you need clearance: a minimum of 15 inches from the centre of each sink to the nearest wall or obstruction (BC Building Code requirement for fixture spacing), and at least 21 inches of clear floor space in front of the vanity for comfortable use. In a typical Vancouver condo bathroom measuring 5x8 feet or 6x9 feet, a single vanity of 30-48 inches is usually the maximum that fits without compromising traffic flow or blocking the door swing.

Consider your plumbing rough-in. A single vanity connects to one set of supply lines and one drain — the existing rough-in in most Vancouver bathrooms. Converting to a double vanity in a space that currently has a single means adding a second set of hot and cold supply lines and a second drain connection. This is plumbing rough-in work that requires a licensed plumber and typically a plumbing permit from your municipality. The additional plumbing work for a second sink adds $800-$2,000 to the project, depending on how far the new drain needs to run and whether venting modifications are needed. In condo and strata bathrooms, any plumbing modifications require strata council approval before work begins.

Cost comparison in the Metro Vancouver market: A quality single vanity (30-48 inches) with countertop, undermount sink, and faucet runs $500-$3,000 for the unit and $800-$4,000 installed with plumbing connections. A double vanity (60-72 inches) with countertop, two undermount sinks, and two faucets runs $1,000-$5,000 for the unit and $1,500-$6,500 installed. The price gap widens further when you factor in the additional plumbing rough-in, the larger countertop (especially in quartz or natural stone), and two of every fixture — two faucets, two drains, two P-traps, two supply line connections.

When a double vanity makes sense: If you have a shared ensuite or main bathroom used by two adults who get ready at the same time, a double vanity eliminates the morning bottleneck. In larger Vancouver homes — detached houses in Kerrisdale, Dunbar, or the North Shore — master ensuites often have the space for a 72-inch double vanity with a comfortable layout. If you are renovating a bathroom specifically to add resale value and the space accommodates it, a double vanity in the master ensuite is a strong selling feature in the Metro Vancouver real estate market.

When a single vanity is the better choice: In most Vancouver condo bathrooms, a well-chosen single vanity with ample storage provides better functionality than cramming in a tight double vanity. A spacious 36-inch or 48-inch single vanity with drawers and a quality countertop looks and functions better than a 60-inch double vanity jammed between a toilet and a shower with barely enough room to open drawers. In smaller bathrooms, the wall space freed up by choosing a single vanity can accommodate a linen tower, open shelving, or a larger shower — all of which may add more practical value than a second sink.

A practical middle ground that is increasingly popular in Metro Vancouver renovations is a single-basin trough sink on a wider vanity cabinet (48-60 inches). This gives two people enough counter space to use the vanity simultaneously while requiring only one drain connection. Paired with two wall-mounted faucets or a single wide-set faucet, a trough sink setup costs less than a full double vanity and works in spaces that cannot accommodate two separate sink bowls.

For either configuration, ensure your vanity choice accounts for Vancouver's humidity. Solid wood vanity cabinets need sealed and finished interiors to resist moisture. Engineered wood and plywood construction with moisture-resistant coatings hold up better in Metro Vancouver bathrooms than particleboard, which swells and deteriorates when exposed to bathroom humidity over time.