Building Permit Drawings in Oshawa
Legalizing existing units, building new suites and renovating older homes — permit drawings for Durham's biggest rental market.
A City Full of Rentals — Legal Ones Win
Oshawa combines an older housing stock with heavy rental demand: Ontario Tech University and Durham College anchor thousands of student tenants, and the GO connection adds commuters. The result is a city where an enormous amount of housing value sits in second units — and where the gap between a legal unit and an illegal one matters more than anywhere else in Durham. Our Oshawa work centres on closing that gap: legalization drawings for existing units, and proper permit sets for new ones.
Many Oshawa homes were carved into units long ago, without drawings or permits. We document the unit as it exists, identify what already meets the Ontario Building Code and what doesn't, and produce the permit set that makes it legal — protecting the owner and the tenants.
As-Built Documentation
The unit as it actually is
Compliance Drawings
Only the changes truly required
Application Support
Through the City of Oshawa's review
Buying near the campuses to add a suite is a proven Oshawa play — and older houses need honest structural documentation before conversion. We design new basement apartments from scratch and produce renovation permit sets for the city's older stock.
New Basement Apartments
Designed legal from day one
Separate Entrances
Side and below-grade access
Older-Home Renovations
Measured existing-and-proposed sets
Oshawa Building Permit Questions
Own a Rental in Oshawa?
Legalize what you have or design the next unit right — start with a free assessment and a clear quote.
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