Additions and ADU in Brooklin

Licensed renovation contractors serving Brooklin and the surrounding Durham Region. Expert craftsmanship, free quotes, zero obligation.

Additions and ADU in Brooklin, Ontario

When you love your Brooklin neighbourhood but need more space, a home addition or accessory dwelling unit (ADU) is often the smartest solution available. Oshawa Renovation Services designs and builds home additions and ADUs across Brooklin that seamlessly extend your living space, add real estate value, and — in the case of ADUs — generate rental income that can significantly offset your renovation investment.

Full renovation services throughout Brooklin West Gwillimbury. Our additions and ADU team has navigated Brooklin's planning approvals, zoning requirements, and building permit processes dozens of times.

Main-Floor and Second-Storey Additions

A main-floor addition in Brooklin extends your home's footprint outward — adding a family room, larger kitchen, main-floor primary suite, or sunroom. Second-storey additions are ideal for Brooklin homeowners on lots with limited side or rear yard space. Both project types require structural engineering, foundation work, and careful integration with the existing roofline.

Accessory Dwelling Units (ADUs) in Brooklin

An ADU — whether a detached laneway house, garage conversion, or self-contained suite above an existing structure — is one of the highest-return investments a Brooklin property owner can make. ADUs can serve as rental income properties, multigenerational living spaces, or private home offices. We handle zoning pre-consultation, all building permit applications, structural design, mechanical rough-ins, and finish construction.

The Additions and ADU Process in Brooklin

  • Site and Zoning Review — confirm setbacks, lot coverage, and ADU eligibility in Brooklin
  • Design and Engineering — architectural drawings and structural engineering
  • Permit Application — full submission and follow-up with Brooklin building department
  • Foundation and Framing — structural construction with experienced crews
  • Mechanicals and Insulation — electrical, plumbing, HVAC, insulation to code
  • Finishing and Handover — drywall, flooring, paint, fixtures, final inspection

We serve all Brooklin neighbourhoods including Brooklin, Bond Head, Beeton, Tottenham and surrounding areas.

Prefer to Call?

647-584-0173

Mon–Sun 8am–9pm

Ready to Start Your Additions and ADU in Brooklin?

Join Brooklin homeowners who trust Oshawa Renovation Services for exceptional renovation results.

Get My Free Quote Call 647-584-0173