Interior architecture — Paris

    Interior architect in Paris
    spaces, materials & light

    We design refined residential interiors that combine architectural rigour with crafted detail — from Haussmannian apartments to contemporary lofts.

    Quick answer

    An interior architect in Paris designs and supervises the full transformation of your space — layout, materials, lighting, custom furniture. Fees are 5–8% of the construction cost for a partial or design-only mission, 8–12% for a standard full mission and 12–15% for a complex, high-end one.

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    8–12%

    Fees — standard full mission

    €2,500–€4,000 excl. VAT/m²

    High-end works, per m²

    6–10mo

    Average project

    HMONP

    Registered architect

    Percentages apply to the construction cost excluding VAT, before technical studies, surveys, taxes and contingency. Final fees are set contractually once the brief, the existing building and the scope of the mission are known.

    A signature approach

    We design interiors that read existing architecture — mouldings, parquet, fireplaces — and weave in contemporary insertions. Every project is unique, with a particular focus on natural light, noble materials and custom millwork.

    • Layout redesign and spatial restructuring
    • Custom millwork — kitchens, libraries, dressings, bathrooms
    • Material & finish curation (stone, oak, brass, lime plaster)
    • Tailored lighting design
    • Bespoke furniture and integrated storage

    From concept to handover

    • On-site visit and brief
    • Concept design with mood boards & 3D renders
    • Detailed design — plans, elevations, joinery drawings
    • Tender & contractor selection
    • On-site supervision and handover

    About our practice

    Architectural practice led by Cécile Dupré, HMONP-certified architect registered with the French Order of Architects (no. 087630), specialised in renovation, restructuring, building permits and high-end interior architecture across Paris, Île-de-France and the Bordeaux area.

    Service area

    We work across Paris and Île-de-France — including Boulogne-Billancourt, Neuilly-sur-Seine, Levallois-Perret, Asnières-sur-Seine, Issy-les-Moulineaux, Courbevoie, Vincennes, Saint-Cloud, Meudon and Clamart — as well as the Bordeaux Metropolitan Area, including Mérignac, Pessac, Talence, Bègles, Le Bouscat, Bruges, Cenon, Floirac, Lormont and Gradignan.

    Frequently asked questions

    What is the difference between an interior architect and a decorator?
    An interior architect designs and modifies space — layouts, walls, lighting, materials, custom furniture — and oversees construction. A decorator focuses on finishes and furnishings without structural work.
    How much does interior architecture cost in Paris?
    Design fees are 5–8% for a partial or design-only mission, 8–12% for a standard full mission and 12–15% for a complex, high-end one. For a high-end Paris apartment, contractor works are €2,500–€4,000 excl. VAT/m², depending on materials and complexity.
    Do you provide 3D renders?
    Yes. Each concept design phase includes mood boards and 3D renders so you can visualise materials, light and spatial proportions before construction starts.
    How long does an interior project take?
    A typical residential project takes 6 to 10 months from first meeting to delivery, depending on the scope of works and the need for permits or co-ownership approvals.

    Let's talk about your project

    Tell us about your space, your timeline and your ambitions. We reply within 48 hours with an initial assessment.

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