KING STREET CONSTRUCTION
Additional Dwelling Unit (ADU)
As Waterloo Regions # 1 Additional Dwelling Unit (ADU) builder we have built all sizes, types, and styles of ADUs. Whether you are looking for a small 1-bedroom unit for your in-laws, a larger ADU with a full basement for yourself, or a 2-bedroom rental unit – we have the experience and resources to get it done.
2 bedroom ADU in the Forest Hill neighbourhood of Kitchener (850 sq ft)
Model ADU Options
We can make minor tweaks easily – such as moving window and door location, to allow these to fit your property best.

1 Bedroom Model
- 425 square feet
- 1 bedroom, 1 bath
- electric mini-split heating/cooling
- our smallest and most economical model option

2 Bedroom Model
- 850 square feet
- 2 bedroom, 1 bathroom
- gas furnace and electric AC
- our most popular model and best value

3 Bedroom Model
- 860 square foot main floor + 860 square foot basement (1720 total square feet)
- 3 bedrooms, 2.5 bathrooms
- gas furnace and electric AC
- our largest model option and maximum size permitted (in Kitchener)
Custom ADUs
Have something else in mind?
We can build a fully custom ADU built to your exact specifications!
Contact us today to see how we can help bring your custom ADU vision to life.


Are you wondering if your property qualifies for an ADU?
Requirements
Regulations and bylaws are constantly evolving to accommodate more homeowners. Certain factors like lot size, lot coverage, frontage and existing units may come into play, but there are often creative solutions available.
Not sure where to start?
We stay up to date on the latest regulations and can guide you through the process. Send us your address today for a free feasibility assessment.
We build high-quality units in the same manner as building a traditional home – no prefab container homes here!

Custom Design and Planning
Our team will work with you to create a ADU design that meets your needs and exceeds your expectations.

Permits and Construction
We handle all aspects of the construction process including all permits, utility servicing, foundation, and all the way through to finishes.

Ongoing Support
We’re here to support you long after your ADU is complete, with advice and assistance on maintaining and living in your new suite.