Free interactive pencil test

Will my laneway or garden suite pencil?

Test cost, rent, and margin for a detached backyard suite. Illustrative assumptions — not a zoning lookup.

Why we built this

Backyard suites are often sold as “easy density,” but parking, utility tie-ins, and soft costs decide whether they pencil. This tool puts those levers in one place.

When a scenario looks promising, take the next step on a real address — zoning, lot dimensions, setbacks, and height limits are free tools on Bucky.

Check this address in Bucky Book a demo

More typology pencil tests

FAQ

What counts as a laneway or garden suite here?: A detached backyard dwelling — coach house, laneway home, or garden suite — modeled as a single rental or for-sale unit behind the main house.
Does this read my zoning?: No. This is an assumption calculator — you set lot size, costs, and rents. For parcel-backed zoning facts, use Bucky’s free address tools or a project workspace.
Who is this for?: Developers, architects, and planning consultants who want a fast “does this typology pencil?” check before committing to a site or detailed study.

Why we built this

Backyard suites are often sold as “easy density,” but parking, utility tie-ins, and soft costs decide whether they pencil. This tool puts those levers in one place.

When a scenario looks promising, take the next step on a real address — zoning, lot dimensions, setbacks, and height limits are free tools on Bucky.

FAQ

What counts as a laneway or garden suite here?

A detached backyard dwelling — coach house, laneway home, or garden suite — modeled as a single rental or for-sale unit behind the main house.

Does this read my zoning?

No. This is an assumption calculator — you set lot size, costs, and rents. For parcel-backed zoning facts, use Bucky’s free address tools or a project workspace.

Who is this for?

Developers, architects, and planning consultants who want a fast “does this typology pencil?” check before committing to a site or detailed study.