Oshawa Deck Builder · Reformity Inc.Deck Builders in Oshawa

Oshawa exempts only low decks — no roof and no more than 600 mm above ground — from a permit. Anything higher, or attached to an above-ground pool, needs one, and we handle it with the City of Oshawa.

Free Estimate

Get a Oshawa decking quote.

Takes about 30 seconds. We reply within one business day.

Timeline

No obligation. We never share your details.

Prefer to talk? Call 437-241-6287

City of Oshawa rules

Decking rules in Oshawa.

Checked against the City of Oshawa's own website. Lots differ, so we confirm the rules for your address at the quote visit.

  • Trees

    Oshawa's Tree By-law protects City-owned trees; woodlands over 1 hectare fall under Durham Region's woodland by-law. Typical backyard trees on private lots aren't covered by a City permit.

    City of Oshawa: trees
  • Conservation areas

    Most of Oshawa is in the Central Lake Ontario Conservation (CLOCA) watershed; work near creeks and valleys may need CLOCA approval.

    CLOCA
  • Deck permits

    Oshawa requires a permit for new or replacement decks, including platforms attached to the house or an above-ground pool. The exception: a house deck with no roof that's no more than 600 mm (24") above ground.

    City of Oshawa: building permits

What we build in Oshawa

Custom decks for outdoor living.

Full decking details, materials & process
  • Composite
  • Pressure-Treated Pine
  • Cedar
  • Railings & Rails

Oshawa Decking FAQ

Quick answers.

Oshawa requires a permit for new or replacement decks, including platforms attached to the house or an above-ground pool. The exception: a house deck with no roof that's no more than 600 mm (24") above ground.

Oshawa's Tree By-law protects City-owned trees; woodlands over 1 hectare fall under Durham Region's woodland by-law. Typical backyard trees on private lots aren't covered by a City permit.

Send the form on this page or call 437-241-6287. We reply within one business day, visit your Oshawa property to measure and check the City of Oshawa rules for your lot, and give you a fixed written price.