Service
Interior renovation
Rethink your entire living space.

When you decide to renovate your home, many questions come up: where to start? How do you find a reliable company? What budget should you plan for? Here is our guide to support you through your interior renovation, from the idea to the handover of the site.
Service
Interior renovation
How do I prepare properly for renovation work?
Renovating doesn't start with demolition. First put your project on paper: it's your guiding thread, the full list of the work to be carried out. Bring in an architect to draw up the plans, which the contractors will need. Put together a mood board (Pinterest is a great ally) and set yourself a reasonable budget from the outset, based on the scope of the work planned.
How can Co'Building help me?
Our experts study your project to better understand your needs, advise you and refine it. We spare you the hassle of the search by putting you in touch with qualified, certified contractors at the best value for money. Finally, we follow the progress of the work from start to handover.
What are the prices per square metre?
The size of the home strongly affects the price. As a guide: a light refresh runs from about €7,500 (30 m2) to €40,000 (80 m2); a full renovation from €21,000 to €88,000; a heavy renovation from €33,000 to €160,000. The price depends on the surface area, the condition of the home, the work to be carried out, the type of materials and the involvement of specialists.
How can I finance my renovation?
Several schemes exist to lighten the bill: MaPrimeRénov', the energy voucher, the éco-PTZ interest-free loan, the Anah grant and the energy-saving certificates (CEE). Look into them ahead of time: these grants can fund a significant share of energy renovation work.
Frequently asked questions
Good to know
What budget should I plan for a full renovation?
Budget around €700 per square metre for a full renovation, from €21,000 for 30 m2 to €88,000 for 80 m2. A light refresh costs less, a heavy renovation more.
Do I need an architect for an interior renovation?
Not always, but an architect makes it easier to design the plans and coordinate the contractors. Co'Building can put you in touch with an architect depending on the scale of your project.
GoKelvin tool · free
Assess the energyperformance of your home
In a few questions, estimate your energy rating, then discover the work to consider and its budget to improve it.
- › Estimate of your energy rating (DPE)
- › Renovation scenarios and their budgets
- › Free, in 2 minutes, no commitment
A few questions about your home, and its energy rating estimated on the spot.
An interior renovation project?
Tell us about your project: we'll estimate it for free and put you in touch with our certified partner companies.


