Skip to content
Bucky
Bucky
|
Book a DemoLog InCreate free account
One of Canada's Top 100 AI Startups. See us September 16–17 atALL INRead more →
  • About
  • Blog
  • Pricing
  • Docs

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 BuckyBook a demo

More typology pencil tests

  • Will my duplex pencil?
  • Will my triplex pencil?
  • Will my fourplex pencil?
  • Will my fiveplex pencil?
  • Will my sixplex pencil?
  • Will my mid-rise pencil?
  • Will my courtyard pencil?
  • All free tools →

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.
Laneway / garden suite pencil test
Illustrative assumptions only — does not read your zoning or parcel record.
PencilsRental · 1 units
$2,160/mo required

Market rent $2,400/mo · 1 units

All-in $344,750 · $344,750/unit

4,000 sf
2
750 sf
$350
18%
$0
1
$35,000
$2,400/mo
6.0%
$350/mo

Cost build-up

  • Hard construction$262,500
  • Soft costs$47,250
  • Parking$35,000
  • Land$0
  • All-in$344,750

Save this scenario

Email yourself the verdict, cost build-up, and a link you can reopen — no account required.

By submitting you agree to our privacy policy.

Check this address in BuckyBook a demo
Bucky — the pre-development platform

The pre-development platform that turns an address into sourced site intelligence, project analysis, and decision-ready deliverables.

Stay in the loop

Regular updates on what we're building.

Ask AI about Bucky

ChatGPT logoAsk ChatGPTGemini logoAsk GeminiClaude logoAsk ClaudeGrok logoAsk GrokPerplexity logoAsk Perplexity

Company

  • Contact us

Network

Socials

  • Instagram
Facebook
  • X
  • LinkedIn
  • YouTube
  • TikTok

    • Resources

    • Documentation

    2026 Bucky AI Inc. All rights reserved.

    Terms of usePrivacy policyGlossaryllms.txtAGENTS.mdsitemap.mdrobots.txthumans.txt
    Create free account
    Log in
    About us
    Blog
    Pricing
    Book a Demo
    Careers
    Press
    Terms of Use
    Privacy Policy
    Partnerships
    Affiliates
    Industry
    Create a feasibility report
    All free tools
    What is my property zoned for?
    What are the dimensions of my lot?
    How many stories can I build?
    What are the setbacks of my property?
    What can I build in my courtyard?