Interior renovation and home decoration are not just about choosing colors or furniture. Since autumn 2026, the financing conditions for renovation work have radically changed, altering how households balance aesthetics and energy performance. What types of renovations produce the most significant transformations, and what constraints do we now face in financing them?
MaPrimeRénov’ and interior renovation: what changed in September 2026
Renovation projects that combine decoration and thermal improvement are directly affected by the refocusing of MaPrimeRénov’. Since September 1, 2026, most so-called “single-action” works are no longer eligible for aid: attic insulation, window replacement, wood stoves, thermodynamic water heaters, double-flow ventilation systems, and solar thermal have been removed from the program for single-action projects.
Only heating heat pumps and comprehensive renovations with energy class jumps remain funded. This shift, framed by decree n° 2026-822 of August 25, 2026, changes the game for anyone considering renovating a room while improving its insulation.
| Type of work | MaPrimeRénov’ eligibility before Sept. 2026 | Eligibility since Sept. 2026 |
|---|---|---|
| Roof / attic insulation | Yes (single-action) | No (except comprehensive renovation) |
| Window replacement | Yes (single-action) | No (except comprehensive renovation) |
| Heat pump | Yes | Yes |
| Wood / pellet stove | Yes (single-action) | No |
| Comprehensive renovation (multi-action) | Yes | Yes (priority) |
For a living room or kitchen renovation project, this means that a change of patio doors or internal wall insulation will no longer be subsidized separately. The strategy now is to group several items into a large-scale renovation to maintain access to funding. Meanwhile, the work done by Imagin’Air Déco shows how interior decoration projects integrate this logic of grouped renovation from the design phase.
Kitchen renovation and living room layout: the elements that transform an interior
Competitors publish attractive before/after galleries but rarely analyze which work items produce the greatest visual and functional gap. Two rooms concentrate the bulk of successful transformations: the kitchen and the living room.
Kitchen: flooring, cabinet facades, and countertop
Replacing a kitchen floor (updating old tiles with a contemporary covering), changing cabinet facades without touching the boxes, and installing a new countertop are often enough to produce a spectacular result. These three interventions do not require major construction work.
However, as soon as you move the sink or the cooktop, the project shifts into plumbing and electrical work, which increases the budget. Moving a water point multiplies the complexity of the project without always providing a proportional comfort gain.
Living room: opening up and managing light
The opening between the living room and kitchen remains the most sought-after transformation. Removing a non-load-bearing wall creates a unified living space that radically changes the perception of a home. Managing natural light (adding or enlarging a bay window, removing heavy drapes, painting walls in light colors) amplifies the effect.
Colors play a measurable role: a wall painted in a dark tone visually reduces the depth of the room, while a neutral and matte tone enlarges it. This inexpensive lever produces a disproportionate result compared to the investment.
Facade and extension: when interior decoration starts outside
Some interior renovations fail because they ignore the building’s envelope. A facade renovation or the creation of a glass extension changes the amount of light entering the rooms, thus affecting the overall interior ambiance.
- A light facade coating combined with fine joinery increases natural light in the living room without altering the interior layout
- A modest extension of a few square meters on the garden side allows for rethinking the flow between the kitchen, living room, and outdoors
- Replacing entry doors and shutters changes the first impression of the project, what professionals call “curb appeal”
The coherence between the exterior and interior decoration distinguishes successful renovations from mere refreshes. A redesigned interior within a neglected envelope loses some of its impact.
Concrete trade-offs in the face of rising renovation costs
The economic context pushes households to prioritize their work more strictly. Three trade-offs appear in recent renovation projects.
- Prioritize comprehensive renovation to access funding: grouping insulation, heating, and interior layout into a single project allows for benefiting from MaPrimeRénov’ in an accompanied pathway, where isolated actions are no longer subsidized
- Postpone purely decorative work (painting, wall decor, accessories) to a later phase to concentrate the budget on major construction and energy
- Choose flooring and covering materials that serve both aesthetics and thermal performance, such as solid wood flooring that improves a room’s thermal inertia
These choices are not just financial. They determine the project’s durability: a well-sequenced energy renovation protects decorative finishes from damage related to humidity or thermal bridges.
The most convincing interior renovation projects share a common point: they address the building before the decor. A new floor laid on a poorly insulated slab will degrade faster. Carefully chosen colors in a poorly ventilated room will dull in a few years. The successful transformation is one that respects this order, even when the budget imposes compromises.
