JDT Construction Inc., home

Tools

How much will my Hamilton building permit cost?

Multiply the City of Hamilton's rate for the kind of work by its floor area in square metres, round to the dollar, and pay at least $291. A deck is $5.36 a square metre, a garage $6.58, a finished basement $4.06, a house or addition $18.32; an ADU is a flat $515 inside or $1,030 detached. JDT Construction built this calculator from the City's own fee schedule.

Work out a fee



(square feet ÷ 10.764)

Choose the work and the area to see the fee.

The result is the City's formula, not a quote: the City calculates the actual fee when you apply, and it is subject to Harmonized Sales Tax (H.S.T.) where applicable (City of Hamilton, Building Permit Fees, read November 5, 2026).

Which rates does it use?

City of Hamilton permit fee rates used by the calculator (Schedule A to By-law 15-058)
WorkRate
New house, or new floor area added to a house$18.32 per m²
Finishing a basement$4.06 per m²
New basement or cold cellar$6.58 per m²
Deck, balcony, open porch or stairs$5.36 per m²
Garage or storage shed$6.58 per m²
Residential greenhouse or open carport$5.36 per m²
Retail, finished$20.05 per m²
Retail, finishing only (a fit-out)$5.07 per m²
Office up to 10 storeys, finished$24.14 per m²
Office up to 10 storeys, finishing only$5.85 per m²
Restaurant or other assembly building$27.21 per m²
Industrial, finished$14.06 per m²
ADU inside an existing house$515 flat
Detached ADU in the rear yard$1,030 flat
Minimum for any permit$291

The City's formula is Permit Fee = SI x A, with fees rounded off to the nearest full dollar (City of Hamilton, Building Permit Fees, read November 5, 2026). New floor area on a house is charged at the house rate. Where no new floor area is made, the fee is 1% of the value of the work as set by the City. Extra fees can apply on top: a foundation permit ($453 for a house), water and sewer services, and for a new house development charges (development charges).

Where do I learn more?

The whole schedule with worked examples is in what a building permit costs. Whether your job needs a permit at all: decks, sheds and garages and basements. Under JDT Construction Inc.'s agreement the homeowner applies for the permit and pays the City's fees; who applies for a building permit explains how that works.

Have a build in mind?

Call to talk it through, or send photos of the house and where the new work goes. JDT replies by phone or email.

Request a quote