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Real Estate Investors in Brampton, Ontario: design, permit and build on a single contract. A typical 700 sq ft unit estimates at $271,000-$363,000 (about $387/sq ft), with $5,500-$10,000 including Brampton registration and Peel charges in municipal approvals and a April-November construction season.

Investors adding a income-generating unit to an existing rental property. We start with a feasibility and lot review that states what the zoning allows, what the build costs and what the unit rents for before you commit capital.
Service area
Brampton, Ontario
Peel Region
Typical build estimate
$271,000-$363,000
about $387/sq ft in Brampton
Municipal approvals
$5,500-$10,000 including Brampton registration and Peel charges
quoted separately from the build
Build season
April-November
126 cm snow · -4.1°C winter avg
Frost depth
1.2 m
footing depth, OBC Part 9
Local market
656,480
residents · walkability 48/100
Brampton has more unregistered basement apartments than any other GTA municipality, and the city's registration program is the pathway to making them legal. Roughly half our Brampton work is not new construction at all - it is fire separation, egress windows and interconnected alarms brought up to Ontario Building Code so an existing suite can be registered. Brampton's Residential Second Unit registration program plus the provincial three-unit permission make legalising an existing basement apartment the most frequent first step here.
Deep newer-subdivision lots, many with an existing unregistered basement apartment that must be brought to Ontario Building Code fire-separation standard. Brampton sees 126 cm of snow and -4.1°C winter averages.
An investment ADU is underwritten before it is designed: the build cost, the $5,500-$10,000 including Brampton registration and Peel charges in approvals and the achievable Brampton rent decide the unit size, not the other way round. We price the feasibility stage as a standalone deliverable so the numbers can be tested against your Brampton parcel before any commitment to design. A legal second unit changes the appraisal basis of the property, which is the return most owners underestimate next to the monthly rent.
Everything you need to know about our services.
A typical 700 sq ft build in Brampton estimates at $271,000-$363,000 - about $387/sq ft, set by $5,500-$10,000 including Brampton registration and Peel charges in approvals, a 1.2 m frost-depth footing requirement and 126 cm of annual snow load. Final pricing follows the site visit.
Related service: Our ADU services
Brampton's Residential Second Unit registration program plus the provincial three-unit permission make legalising an existing basement apartment the most frequent first step here. Approval costs in Brampton run $5,500-$10,000 including Brampton registration and Peel charges, quoted separately from construction so the permit stage holds no surprises.
Related service: Basement Suites
Deep newer-subdivision lots, many with an existing unregistered basement apartment that must be brought to Ontario Building Code fire-separation standard. At 48/100 walkability, Brampton suites usually keep one parking space: enough to clear the zoning review without surrendering the whole yard. We work regularly in Bramalea, Heart Lake, Springdale.
Related service: Basement Suites
A legal, permitted second unit changes how the property is appraised in Brampton - it is valued partly on income rather than purely on comparables. An unpermitted suite does the opposite: it is discounted or excluded entirely, and it surfaces on every purchaser's title and insurance review.
Related service: Accessory Dwelling Units
Get a free, no-obligation quote from GTA ADU Builders - zoning review, permit drawings and construction for ADUs across the GTA.