Modular / prefab · Whitby
Modular Homes in Whitby
Perimeter Homes builds modular and prefab homes and garden suites in Whitby: factory-built, set on your lot, and checked against Whitby's rules first.
Modular and prefab in Whitby
Where a factory-built home fits in Whitby
A modular home is built in sections in a factory, then trucked to your lot and set by crane. It goes through the same building permit as a site-built home. In Whitby, the right fit usually comes down to lot access, servicing and the local unit rules.
Units allowed on the lot
Ontario's Planning Act allows up to three units on a serviced urban residential lot. Whitby's By-law 8143-24 sets the standards for an additional unit in an accessory structure (75 m², 5.5 m tall).
Source: Whitby By-law 8143-24, as of November 1, 2026Backyard modular suites
A factory-built garden suite has to meet Whitby's detached unit limits for size, height and setbacks. Our Whitby garden suite guide lists them, with links to the official sources.
Site logistics
Modules arrive by truck and are set by crane, so street width, overhead wires, trees and the path to the foundation all matter. Older downtown Whitby and Port Whitby lots are the infill opportunity. Brooklin's newer lots and Oak Ridges Moraine areas have their own rules.
Check with the city: modular homes need the same zoning and building permits as any new home. We confirm the rules for your lot with Whitby before you order.
Modular / prefab options
Ways to build factory-built
Geohaus garden suites
Perimeter Homes is a Geohaus partner: studio, one- and two-bedroom factory-built suites.
See the layoutsModular model gallery
21 concept designs for garden suites and backyard homes, with sizes adjustable to your lot and local rules.
Browse the modelsPhotos below are finished Geohaus suites, partner builds, labelled as such.
Other ways to build in Whitby
Nearby
Common questions
FAQ
Can I put a modular home on my lot in Whitby?
Usually, if the zoning allows the house type and the lot has truck and crane access. It needs the same building permit as a site-built home. Ontario's Planning Act allows up to three units on a serviced urban residential lot. Whitby's By-law 8143-24 sets the standards for an additional unit in an accessory structure (75 m², 5.5 m tall).
Is a modular home built to the same code?
Yes. It has to meet the Ontario Building Code and go through the municipal permit process like any new home.
Can I add a modular garden suite in Whitby?
Often, yes. See our Whitby garden suite guide for the local size and height limits.
Do you show prices?
No. Cost depends on the lot, site work and finishes. Tell us about your lot and we'll walk you through it.
Start here
Ask about modular homes in Whitby.
Dan Carrol and the Perimeter Homes team reply within one business day. A phone number is required so we can call you about your lot.