Before and After project : Basement renovation

before after project basement

Where was this project done?

Becancour, Quebec

Type of project ?

Basement renovation: review the entire layout of the space and redo the design


The whole project : 100 000 $

Design : 5 000 $

Construction period

4 months

In the words of the professional

Directed by Marie-Ange Adousso, President of Poly-Design

In September 2016, Poly-Design was given the mandate to carry out the plans and the choice of materials for the complete renovation of a basement in a three-storey cottage-type house.
The client wanted to better define the spaces of the basement because they were badly arranged and their placement did not make it possible to make a second family space.

The first step was to redefine in a functional way all the space of the basement by integrating the client’s plans: 2 children’s rooms, a room for guest which can be converted into a gym, as well as a bigger bathroom and finally a real family room.
To present the new plan, Poly-Design worked with the 3D tool by modeling the proposed solution and  validating  the concept with the client.
Once the concept was approved, the second and final period of the mandate was to select all the finish materials of finishes (floor, ceramic, accent colors, painting, choice of figures).

Additionally, some furniture has also been  custom designed (Murphy bed and TV cabinet in the family room).
Finally, the project reflects the needs to find an environment adapted to the needs of the family.

The challenge

Working on an existing finished basement and completely demolishing it to redo it, ie re-splitting the space in a functional way involves many challenges. The biggest was to anticipate all possible contingencies!






projet avant après sous sol rénovation

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