Furnishing the interior of a house, it's much more than just interior design. It's the creation of a true cocoon that reflects us. Between the technical challenges and the aesthetic choices, this project requires thought and method. At La Maison Coloniale, we love accompanying our readers on this wonderful adventure of transforming a home into a haven of peace. Furnishing the interior of a house involves balancing practical aspects with a personal touch. Today, we'll guide you step by step through the fundamental steps to transforming your living space, from structural work to the finishing touches that will make all the difference.
Our article in brief:
The interior design of a house Successful transformation transforms your home into a personal space that combines technicality and aesthetics. Here are the points not to be missed:
- Start with the foundations : check the condition of structures, repair cracks and treat humidity before any decorative project.
- Optimize insulation : invest in suitable materials such as wood wool for walls or cellulose wadding for attics.
- Modernize the facilities : bring the electricity and plumbing up to standard to ensure safety and comfort.
- Customize the finishes : use sustainable colors and materials to create an atmosphere that reflects you.
In this article
The basics of interior design: checking and repairing structural elements
Before you embark on the adventure andarrange the interior of a house , start by making sure that the structure of your house is in perfect condition. This crucial step will determine the success and sustainability of your work. We have noticed during our visits to our readers that untreated structural problems often come back to haunt the most beautiful renovation projects.
Points to check as a priority for a successful interior design
Carefully examine the condition of the load-bearing walls, floors and framework. Diagonal cracks on the walls may indicate structural subsidence requiring rapid intervention. Also check for moisture, particularly in the corners of rooms and near windows. Don't hesitate to call an expert to detect problems invisible to the naked eye that could compromise your housing project.
Solutions to common structural problems in your home

For large cracks, resin injection can stabilize the structure without major work. Repair of damaged structural elements Often less expensive than a complete replacement. For moisture, opt for long-term solutions like perimeter drainage rather than surface treatments. Investing in these fundamental repairs will ensure the strength of your home for decades to come.
Optimize the insulation and energy performance of your interior
Insulation is the cornerstone of comfortable and economical housing. During our renovation workshops, we find that this step radically transforms the quality of life in a house, whatever its size.
Insulating materials suitable for each part of the house
Here are the points to consider for arrange the interior of a house :
- For interior walls : wood wool offers excellent thermal performance while naturally regulating humidity
- For converted attics : cellulose wadding, light and ecological, effectively protects against temperature variations
- For low floors : expanded cork combines thermal and sound insulation, ideal for overlapping spaces

Impact on energy consumption in your renovation
Properly installed thermal insulation can reduce your heating bills by up to 30%. Also consider airtightness, which complements traditional insulation. Thermal bridges eliminated during overall insulation work help maintain a consistent temperature in all living areas. To finance these improvements, find out more about MyPrimeRénov' and other energy renovation assistance schemes.
Furnish the interior of a house by modernizing the technical installations
Technical systems are the invisible backbone of any successful interior design. Their up-to-date design guarantees not only your safety but also your daily comfort.
Electrical and plumbing standards for a secure interior
Complete electrical renovations are essential in older buildings to prevent fire risks. Provide enough outlets per room (ideally one every 2 meters) and dedicated circuits for energy-intensive appliances. Multilayer or PER plumbing installation offers durability and ease of maintenance compared to older lead or copper pipes.
System | Average lifespan | Signs of aging | Benefits of replacement |
---|---|---|---|
Electrical installation | 30-40 years old | Frequent disjunctions, visible wires | Increased security, adaptation to modern devices |
Plumbing | 20-50 years (depending on materials) | Leaks, uneven pressure | Water savings, damage prevention |
Heating | 15-25 years old | Excessive consumption, noise | Optimal comfort, reduced bills |
Efficient heating and ventilation systems for your home
Choose heating solutions adapted to your region and the layout of your home. Air-to-water heat pumps offer an excellent compromise between investment and long-term savings.Don't forget to install a double-flow CMV which renews the interior air while preserving the heat, particularly beneficial for bedrooms and humid rooms.
Transform spaces with innovative design solutions
Contemporary interior design emphasizes fluidity and multifunctionality. We're seeing more and more homes that adapt to their occupants rather than the other way around.
Lightweight and modular partitions to reinvent your interior
Wooden screens elegantly demarcate spaces without completely closing them off, creating a visual connection between the kitchen and living room, for example. Sliding or accordion walls in frosted glass allow you to modulate the space according to your needs, ideal for transforming a large living room into several distinct zones. These lightweight solutions preserve the brightness while structuring the living space.

Multifunctional furniture for small spaces
Here are some ideas for multifunctional furniture to help arrange the interior of a house :
- Murphy beds with integrated desk instantly transform a bedroom into a workspace
- Mobile kitchen islands adapt to different times of the day
- The library stairs combine circulation and storage in a clever layout
Coatings and finishes: giving character to your interior
Finishes determine the overall atmosphere of your home and reflect your personality. We prioritize at The Colonial House natural materials that bring warmth and authenticity.
The power of colors on the perception of interior space
Light shades visually enlarge rooms while dark tones create a cozy atmosphere in large spaces. Sage green and terracotta bring a natural and soothing touch Perfect for bedrooms. For a small space, adopt the color zoning technique which delineates functions with touches of color without visually breaking up the room.

Sustainable and trendy materials for coverings
Polished concrete offers a contemporary and durable finish, ideal for living room floors. Custom cement tiles in a bathroom bring character and originality to this intimate space. For walls, panoramic wallpaper radically transforms the ambiance of a room with a limited investment.
Practical arrangements for every room in the house
Each space deserves special attention to meet its specific functions while integrating harmoniously into the whole house.
Solutions for living spaces and their layout
Here are room-by-room solutions for arrange the interior of a house :
- In the living room : choose a sofa facing the natural light source rather than a wall
- For the kitchen : respects the activity triangle (refrigerator, sink, cooking) with optimal distances of 1.2 to 2.7 meters
- In the rooms : place the bed against a solid wall (never under a window) and provide closed storage to maintain a serene atmosphere

Tips for circulation spaces in interior design
Corridors can become much more than just passageways. Niches integrated into the corridor partitions transform these spaces into personal galleries while preserving circulation. Indirect lighting along the baseboards naturally guides visitors to the different rooms while creating a warm atmosphere.
Sources of inspiration to transform your interior
There's nothing like concrete examples to visualize the potential for transforming your home. Our visits to our readers' homes have allowed us to document some spectacular transformations.

Maximize natural light in your space
Mary transformed her townhouse dark into a bright space by replacing a load-bearing wall with a workshop glass roof. The skylights strategically placed above the staircase diffuse light down to the ground floor. Mirrors placed opposite the windows amplify the natural light while creating an impression of additional space.

Redefine living spaces in your renovation
Thomas and Léa converted their old garage into a magnificent master suite opening onto the garden. Demolition of the partitions between the kitchen and the dining room created a welcoming living space tailored to their family life. These projects prove that with vision and planning, even structural constraints can become creative opportunities to reinvent your home.
