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London ARU guide

London ARU Project Budget Calculator

Build an all-in planning range that includes the costs commonly omitted from model prices. Inputs stay in this browser and are not a quote.

Reviewed 2026-07-20 · Independent information, not City approval

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Decision guide

Check the property before you spend on plans

Use the lot, funding, rent-cap and servicing screens to decide whether the next step should be design work, a builder conversation or more research.

  • Check the address
  • Compare funding agreements
  • Confirm the rent math
  • Budget the hidden costs

Project economics

Estimate the all-in ARU budget

Planning ranges only—not a contractor quote or financing commitment.

All-in planning total$0
Cash before funding$0
Annual net before debt$0

Model Price Is Not Project Price

A complete budget can include design, engineering, permits, utilities, grading, access, financing, contingency, taxes and exclusions beyond the structure itself.

Funding Timing Still Matters

A grant or loan does not necessarily remove the need to finance deposits and construction-stage payments. Confirm advance and reimbursement timing before counting funding as available cash.

Stress-Test The Rent

Use vacancy and operating costs, and compare affordable-stream assumptions with the current CMHC reference rather than relying on gross monthly rent.

FAQ

Common questions, answered plainly

Is this calculator a construction quote?

No. It is a browser-local planning model. Site conditions and professional quotes determine the real project cost.

Prepare For Quotes

Normalize the next builder conversation.

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Next checks

01 Quote Comparison Tool Normalize two ARU contractor quotes and flag missing scope. 02 CMHC Rent Cap Calculator Model the 1-bedroom and 2-bedroom rent caps before relying on the loan. 03 Cost To Build A Detached ARU Review construction, servicing, permit, insurance, tax, and development charge risks. 04 London ARU Grant Guide Compare the current grants and separate repayable loan before you spend on drawings.