Site & Design | Lots, Setbacks & Coverage

How Your Lot Decides What You Can Build

Two lots with the same zone can hold very different buildings. Width sets whether you get a houseplex or a corner townhouse; depth sets the rear yard; grade sets how hard the foundation works. Every number on this page comes from the Schedule P Missing Middle Regulations. Read them against your specific parcel before you design.

Key Takeaways

  • A houseplex needs a 12 m minimum lot width; a corner townhouse needs 18 m near two streets.
  • The houseplex rear yard is the greater of 10 m or 25% of lot depth — often the binding limit.
  • Site coverage caps at 40% (houseplex) / 50% (townhouse); open space at 45% minimum.
  • Front 4 m, side 1.5 m, and 5 m between buildings on the same lot.

The Numbers

Requirement Schedule P value
Front yard setback (houseplex) 4 m minimum
Side yard setback (houseplex) 1.5 m minimum
Rear yard setback (houseplex) The greater of 10 m or 25% of lot depth
Setback from a street (corner townhouse) 2 m (5 m where a window faces a habitable room)
Building separation (both forms) 5 m minimum where more than one building
Site coverage (houseplex / townhouse) 40% / 50% maximum
Open site space (both forms) 45% minimum
Minimum lot width (houseplex) 12 m (14 m if more than one parking space required)
Minimum lot width (corner townhouse) 18 m
Street proximity (houseplex) Building within 30 m of a street (not a lane)

From the City of Victoria Schedule P (sections 3 and 4).

Four Lot Types, Four Outcomes

Standard interior lot

The everyday Victoria lot. If it is at least 12 m wide and designated Traditional Residential, a houseplex is on the table. The rear-yard rule — the greater of 10 m or 25% of depth — usually decides how much building you get.

Corner lot

A corner lot at least 18 m wide near two streets unlocks the corner townhouse form, up to 12 units. The 2 m street setback is more generous than an interior lot’s front yard, which is why corners pack more in.

Deep lot

On a deep lot the rear yard is set by 25% of depth, not the 10 m floor, so a longer lot gives up more rear yard. Site coverage (40%) and the 1,410 m² combined floor-area cap become the binding limits.

Sloped lot

Grade interacts with the minimum 1.1 m ceiling height above grade for the lowest level and with retaining and ramp design. A sloped lot is buildable but adds cost and design work.

Best For

  • Interior lots at least 12 m wide with enough depth to absorb the rear-yard rule.
  • Corner lots at least 18 m wide near two streets, where the townhouse form pays off.
  • Flat or gently sloped lots where grade does not force expensive retaining.

Usually Fails When

  • A narrow lot falls below the 12 m houseplex (or 18 m townhouse) minimum width.
  • A deep lot gives up too much rear yard to 25%-of-depth, shrinking the buildable area.
  • Steep grade drives retaining and foundation cost past what the unit count supports.

What To Verify Before Spending Money

  • Surveyed lot width and depth — not the assessment-roll estimate.
  • Whether the parcel is a true corner lot with two qualifying street frontages.
  • How the rear-yard rule and 40% coverage cap interact on your actual dimensions.

Where to Go Next

Frequently Asked Questions

What is the minimum lot size for a houseplex in Victoria? +
Schedule P sets a minimum lot width of 12 m for a lot with one houseplex (14 m if more than one parking space is required), rather than a single minimum area. Combined floor area on a lot is capped at 1,410 m², and site coverage at 40%, so those limits — together with the rear-yard setback — usually decide the building size more than a lot-area minimum does.
How big is the rear yard I have to leave? +
For a houseplex, the rear yard is the greater of 10 metres or 25% of the lot depth. On a shallow lot the 10 m floor controls; on a deep lot the 25% figure is larger and takes more of the lot. This is one of the most consequential numbers for how much building fits.
What is the front and side setback for a houseplex? +
A 4 m minimum front yard and a 1.5 m minimum side yard, per Schedule P. Where more than one building sits on the lot, they must be at least 5 m apart.
Why does a corner lot allow more? +
A corner townhouse — only available on a corner lot at least 18 m wide near two streets — carries a higher floor space ratio (1.1 vs 1.0), higher site coverage (50% vs 40%), and a smaller 2 m street setback. Those settings let a corner site reach up to 12 units where an interior lot tops out at a 6-unit houseplex.
How much of my lot can the building cover? +
Up to 40% site coverage for a houseplex and 50% for a corner townhouse, with a minimum 45% open site space in both cases. Coverage and open-space rules work together to keep yards and landscaping on the lot.

Official Sources Referenced

Screen Your Victoria Lot for a Houseplex

Enter any Greater Victoria address to check the zone, Traditional Residential designation, and how many units the Missing Middle rules allow.