« A very professional project manager — we trusted him with our three-house project and made the right call. Five years on, he is still available to give us advice. »
Old buildings
have a soul.
— We reveal it.
Cabinet ECHO leads your construction, renovation and extension projects in Charente-Maritime. We coordinate craftsmen, protect deadlines and your budget — so your project becomes a home worth living in.

What is a project manager?
The maître d'œuvre conducts your building site. We design, coordinate and control — guaranteeing quality, deadlines and budget.
Study
Needs analysis, tailored proposals, sketches and technical plans.
Planning
Precise schedule, detailed budget, selection of trades and craftsmen.
Coordination
Daily site leadership, communication between stakeholders, field follow-up.
Delivery
Conformity checks, reserves resolution, keys handed over in confidence.
A complete accompaniment, from sketch to keys.
New Construction
From feasibility to building permit, we design sustainable, energy-compliant homes.
Renovation
Heavy or light renovation — we reveal the potential of old buildings while respecting their soul.
Extension & Raising
Expanding without betraying. Extensions that dialogue with existing structures.
Feasibility Study
A deeper mission than the advice visit, undertaken once a project is seriously considered. It examines the technical, regulatory and financial feasibility of an operation: PLU or PSMV review, setback and height constraints, existing-building analysis, programme outline, detailed budget estimate. The feasibility study is the essential prerequisite to any commitment to a full project management mission — it turns an intention into an informed project.
Advice Visit
Before buying or building, a professional eye on potential, constraints and budget.
A hundred projects, one standard.

CCI Rochefort & Saintonge
Offices transformed into classrooms — 380 sqm.
◦ Rochefort
Projet République
Full renovation of a historical townhouse.
◦ Rochefort
Full renovation of a faubourg house
Full renovation of a typical Rochefort faubourg house — from as-found to delivery.
◦ Rochefort
La Cave des Demoiselles
Wine cellar creation — storefront & interior.
◦ Rochefort
Marsais Barn
Barn converted into a primary home.
◦ Marsais
House Rochefort
Full renovation with a contemporary extension.
◦ Rochefort
Ecomiam Store
Retail redesign — store creation.
◦ Saintes
Villa La Rochelle
High-end renovation of a master house.
◦ La Rochelle
Saint-Georges-de-Didonne House
Contemporary extension and renovation of a 1960s-1970s seaside house.
◦ Saint-Georges-de-DidonneWhat they say.
Reviews from our clients — collected and published on our Google listing.
« I hired Cabinet ECHO for my renovation project and I am extremely satisfied on every level: the seriousness brought to the design phase all the way through to the site supervision. Thanks to Nicolas Foucaud and Mathilde Eveno for their work. I am already recommending this firm to everyone around me. »
« A beautiful experience with Cabinet ECHO. They truly listen to our needs and tastes. Quality, personalised support. I highly recommend Cabinet ECHO. »
« Excellent professionals who listen to their clients. As a demanding customer myself, I strongly recommend them. »
« Beyond being a very pleasant person, he is above all a professional who genuinely listens to his clients. He suggested highly competent contractors and managed the scheduling of every intervention. I have since referred him to other people I look after, and they are all very satisfied. I recommend without hesitation. »
« We hired Cabinet ECHO for a complete renovation of a house in Rochefort. The firm handled every bit of the work with skill and professionalism. We are delighted and recommend them for any construction project. »
Estimate your works in 30 seconds.
An indicative range, based on local market rates.
Share your contact details to unlock your personalised estimate — it will appear here and you'll also receive it by email.
Indicative estimate excluding project management fees.
Everything we explain before you sign.
What we hear most often during advice visits, gathered here to save time. If your question isn't covered, drop us a note — quick and direct.
The project manager is the conductor of your construction site. They design the plans, select and coordinate craftsmen, drive the schedule and control quality — ensuring the project respects budget and timeline, from study to handover of keys.
An architect is mandatory for new constructions over 150 sqm of floor area. TA project manager has no floor area restriction, particularly in renovation work and drives execution and coordination. Both can design, but the project manager stays on board until handover.
Full mission fees range from 8% to 15% of the works' pre-tax amount, depending on complexity and level of support. The quote is clear and transparent before signature, with no hidden costs.
All of Charente-Maritime: Rochefort (HQ), La Rochelle, Saintes, Royan, Marsais, Pons, Saint-Jean-d'Angély, Cognac, Tonnay-Charente. The Charente-Maritime is our daily territory.
The online simulator gives an indicative range in 30 seconds. For a precise costing, book a meeting: the on-site advice visit (1h-2h) is the first step — we read the building or plot with you before proposing a scenario.
It's one of our specialities. Saintonge limestone, heritage constraints (ABF), Remarkable Heritage Sites of Rochefort and Saintes, breathable insulation (lime-hemp, wood fibre) — these have been part of our everyday work since 2016.
Light renovation 100 sqm: 3 to 5 months. Heavy renovation 130 sqm: 8 to 12 months. Extension 30 sqm: 4 to 6 months. New construction 150 sqm: 6 to 12 months. High-end villa 250+ sqm: 16 to 24 months. The duration of the work varies depending on the location, weather conditions, and the complexity of the project.
Book a visit with the Cabinet.
A personal advice visit to clarify your project, assess feasibility and guide your decisions.
