House Plot Plans: Why a Survey is Not a Building Permit Application

In municipal planning departments, the House Plot Plan is the single most important sheet in your drawing set. It is the first document a reviewer opens to determine if your project is even 'legal.' While your surveyor provides the 'As-Built' data of the land, our role as designers is to overlay your vision onto those constraints.

1. The Building Envelope and Setbacks

A plot plan defines the 'buildable' area of your lot. In Burnaby, this often involves a complex calculation of the Average Grade to determine how high you can build. In Coquitlam, the focus is frequently on the Building Envelope—ensuring your 4-plex or single-family home does not encroach on required front, side, or rear yard setbacks.

• Setbacks: Precise distances from the outermost projection (including eaves) to the property line.
• Legal Encumbrances: Your plot plan must clearly label all Statutory Rights-of-Way (SRW) and Easements. Building over a utility corridor is an automatic permit denial.

2. Site Coverage & Permeability

Modern BC municipalities are obsessed with 'Site Coverage'—the percentage of your lot covered by buildings—and 'Permeable Surface Area'—how much of your lot can absorb rainwater.

• Burnaby Requirements: Burnaby is notoriously strict on impermeable surfaces (pavement, buildings). Your plot plan must include a detailed table proving you haven't exceeded the maximum allowable coverage.
• Density Strategy: If you are building a multi-unit project under the new SSMUH mandates, we use the plot plan to prove that the increased unit count doesn't exceed the infrastructure capacity of the lot.

3. Topography and Geodetic Elevations

If your lot is in Coquitlam, your plot plan must address Topography. A flat drawing is useless on a 15% slope. We translate the surveyor's contour lines into a grading plan that shows:

• Finished Floor Elevations (FFE): Exactly how high the main floor sits relative to the street.
• Retaining Walls: Location and height of any wall over 1.2m, which often requires a separate structural schedule.
• Riparian Zones: For lots near streams, the plot plan must respect the 'Streamside Protection and Enhancement Area' (SPEA) boundaries.

4. The Submission Strategy

At Canadian Blueprint Inc., we don't just 'draw' a site plan. We coordinate the surveyor’s data with the architectural floor plans and the civil engineer’s drainage report. This multi-layered approach ensures that when the City of Burnaby or Coquitlam opens your digital package, they see a cohesive, permit-ready story rather than a collection of conflicting drawings.

Don't Risk an 'Incomplete' Status

Is your plot plan ready for municipal scrutiny? We transform basic surveys into high-authority site plans that clear the permit counter.

Get Your Site Plan Audit Today

FAQ: The 'Drafting Gap' That Kills Permits

Can I use an old survey for my plot plan?

Only if the survey is recent (typically within 1-2 years) and no changes have occurred to the property. However, most cities require a 'topographical' survey for any new development or major addition.

What is the difference between a site plan and a plot plan?

In BC, the terms are used interchangeably. Both refer to the bird's-eye view of your property showing existing and proposed structures, setbacks, and land features.

Why does Coquitlam require a 'Steep Slope' assessment on the plot plan?

Coquitlam has significant terrain variation. If your lot exceeds a specific grade, the city requires the plot plan to be paired with a Geotechnical report to ensure the proposed building is safe from erosion or land movement.