Site notebooks.
Reflections, methods and field notes from our Charente-Maritime projects.

Energy renovation in Charente-Maritime: Cabinet ECHO listed by three public platforms
Cabinet ECHO is now listed in the directories of CARO Rénov' (Rochefort Océan), the La Rochelle Energy Renovation Platform and Rénov' Info Service (Aunis & Vals de Saintonge). What does it change for your project?
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Project manager in La Rochelle: reconciling maritime heritage and modern comfort
Cut-stone facades, sea spray, strict urban planning: building or renovating in La Rochelle demands a careful site reading and sharp technical know-how. Field notes.
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Building in Royan: modern seaside architecture meets coastal constraints
Royan was rebuilt after WWII in a modernist style unique in France. Building there today means dialoguing with that legacy — and with the ocean.
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Project manager in Charente-Maritime: 8 typical projects and their budget envelopes
From a Rochefort faubourg renovation to a La Rochelle seaside villa: 8 concrete costed scenarios drawn from our ten years of experience in Charente-Maritime.
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Project manager in Rochefort and Saintes: composing with Saintonge heritage
Rochefort, the 17th-century arsenal town. Saintes, ancient capital of Saintonge. Two distinct urban scripts, the same fragile limestone, neighbouring heritage rules. Field notes from a decade of projects.
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Builder or project manager: which one to choose in 2026?
Single contract with a builder or management by an independent project manager: the difference affects your budget, freedom and recourse. The full guide.
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How much does a project manager cost in Rochefort in 2026?
Flat fees, price per m², comparison with an architect: the real price of a project manager in Charente-Maritime, straight talk.
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5 mistakes to avoid when renovating an old house
Improvisation, incomplete quotes, overlooked contingencies, neglected materials, going it alone: the classic pitfalls that turn a renovation into a nightmare. And how to avoid them from the very start.
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Mastering your works budget: 5 golden rules
Budget overruns are not inevitable. Five principles we apply daily.
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Contemporary extension: dialogue with the existing
Extending a house without distorting it requires a subtle balance between continuity and rupture.
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Renovating heritage: soul before performance
How to modernize an old building without betraying its identity? A look back at our heritage renovation philosophy.
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