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Toronto · 3,261 retained category records

Toronto renovation costs: what permit records declare

These figures summarize construction values applicants declared in the City of Toronto building permit record. They are not invoices or final spending, and the scope included can vary from one permit to another.

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Each page shows the full distribution, not a range someone invented, and offers a property-type filter where the permit data supports one.

Basement underpinningMedian$65,000$40,000 to $125,000 typical757 permits · 2024–2026Garden suiteMedian$200,000$100,000 to $350,000 typical606 permits · 2024–2026Deck constructionMedian$30,000$10,000 to $59,250 typical588 permits · 2024–2026Rear additionMedian$150,000$80,000 to $300,000 typical366 permits · 2024–2026Second suite conversionMedian$40,000$20,000 to $50,000 typical355 permits · 2024–2026Front porch replacementMedian$20,000$10,000 to $50,000 typical329 permits · 2024–2026Laneway suiteMedian$300,000$150,000 to $450,000 typical260 permits · 2024–2026

For journalists and researchers: the Toronto Renovation Cost Report compares all 7 categories in one table, with the figures as a CSV.

How declared values vary

For deck construction, the midpoint on a detached duplex is $50,000, against $20,000 on a semi-detached. That is 150% more within this permit category. The record does not establish whether the two groups contain the same project scope.

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How it works

  1. Pick your jobWhere the permit records identify property types reliably, you can narrow that job’s sample further.
  2. See the declared-value distributionThe middle 50%, median, sample size and years covered, so you can see what applicants declared without treating it as a project budget.
  3. Compare with declared permit values, or get a quotePlace your quote on the permit-value distribution for context. The comparison does not judge the price because quote scope can differ.

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What these figures can tell you

The City publishes building permit records that include the construction value each applicant declared at filing. Kildrin groups those records by project type and shows their distribution, sample size and date coverage.

A declared value is not a quote, invoice or record of final spending. The source does not itemize the scope behind every declaration, so use the figures to understand the sampled permit values rather than to judge a contractor’s price. The full methodology explains the calculation and its limits.