Savoie · Grand Lac conurbation

Project manager & renovation in Ontex.

Project manager, architect and RGE general contractor under one roof, for your projects in Ontex (Savoie). A small mountain village clinging to the western slope of Mont du Chat, above Lac du Bourget: Atelier NovAlp manages the renovation of your traditional house or farmhouse, your extension or your energy renovation from design to handover, with a single turnkey point of contact.

73
Savoie · Grand Lac conurbation
RGE
CertiRénov no. CR-2026-73-0095
1
Point of contact from plans to handover of the keys
48 h
Response time to your enquiry

Renovation in Ontex: a mountain village above the lake that calls for a project manager

Ontex is a small mountain village in Savoie, clinging to the western slope of Mont du Chat, on the heights overlooking Lac du Bourget. Part of the Grand Lac conurbation, the commune consists of a few hamlets, farmhouses and traditional houses scattered among forests, mountain pastures and farming terraces. There are no dense housing estates or apartment blocks here: people come to Ontex for absolute peace, clean air and the view, with the mirror of the lake below and the Épine massif as a backdrop.

This unspoilt setting attracts two types of owner: those who make it their main residence to live in the countryside just a few minutes from Aix-les-Bains, and those who own a second home there, often an old family farmhouse or a village house to restore. In both cases, the brief is clear: bring traditional buildings — stone, wood, traditional roofing — back to life, adapting them to today's comfort without betraying their character or the landscape.

That is precisely the role of the project manager: carrying your project from start to finish, protecting your budget and schedule, and sparing you from juggling a dozen different firms on a site that can be hard to reach. From our office in Aix-les-Bains, a few minutes from the lakeshore, we know the Mont du Chat slope and work regularly in Ontex and its neighbouring communes (La Chapelle-du-Mont-du-Chat, Bourdeau, Le Bourget-du-Lac, Chanaz, Aix-les-Bains).

Renovating traditional village houses and farmhouses, and conversions

Renovating traditional village houses is the most common request in Ontex. These stone village houses, with their thick walls and low ceilings, deserve a complete upgrade: repairing the roof structure and roofing, opening up living spaces to capture the light and the lake view, high-performance insulation that respects the old building, and modernised bathrooms and kitchen. We design these projects to measure, taking care to preserve the soul of the place — exposed stone, beams, door and window surrounds — while delivering the thermal comfort expected today.

Converting farmhouses and barns is the village's other major type of project. Turning a former farm building, cowshed or barn into a home takes real design work: new floors, large openings, a staircase, bringing all services up to standard, while respecting the volumes and external appearance required in a mountain area. When the project involves a change of use, we prepare the appropriate planning application and manage all the trades through to handover.

Finally, an extension adds living space when the original house has become too small: extending from the existing building, creating a living room that opens onto the landscape, converting the loft or a basement. This work improves the comfort and value of the property, and often qualifies for grants. As an RGE-certified firm, we build energy performance in from the design stage and manage the works where the local plan (PLU) and the Loi Montagne allow.

Architect, project manager and RGE-certified general contractor: a single point of contact

Atelier NovAlp's strength is bringing three disciplines under one roof: architect, project manager and RGE-certified general contractor. In practice, you no longer have to coordinate an architect, an engineering firm, a project manager and a dozen tradespeople yourself: a single point of contact carries your project from the first sketch to handing over the keys. This turnkey approach removes the grey areas between the parties involved — where most delays, cost overruns and defects arise — an advantage that matters all the more on a project in an isolated village.

Depending on the nature of the project, we adapt the arrangement: an architect's assignment for a major conversion or a large extension, project management for a renovation with separate trade packages, or general contracting with a commitment to results for a project with a controlled budget. As Ontex is a rural mountain municipality, planning applications fall under the municipal local plan (PLU) and the Loi Montagne — siting, heights, facade and roof colours, the appearance of outbuildings, preserving views over the lake. We always check the zone regulations before drawing, so the application complies from the first submission.

Our RGE CertiRénov no. CR-2026-73-0095 certification (comprehensive renovation offer, issued by Qualitel Certification) also gives you access to grant schemes: MaPrimeRénov', Energy Savings Certificates (CEE) and local grants. We calculate your real out-of-pocket cost and build these subsidies into your renovation's financing plan. Discover all our services or our page dedicated to Aix-les-Bains.

Our recent projects

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Our office is based in Aix-les-Bains, a few minutes from Ontex and the shore of Lac du Bourget. Here are some of our recent projects.

Our services in Ontex

Design, project management and RGE general contracting — with particular expertise in renovating traditional village houses, converting farmhouses and building extensions in this mountain village on the slopes of Mont du Chat.

Traditional house renovation

Roof structure and roofing repairs, stone walls, insulation that respects the old building, openings towards the lake view and finishes in the hamlets of Ontex.

Farmhouse & barn conversion

Turning a farm building, cowshed or barn into a home, change of use, floors, services and preserved volumes.

Extension & fit-out

Adding living space in keeping with the existing building, lofts and basements, building permit and design that complies with the local plan (PLU) and the Loi Montagne.

RGE energy-efficiency renovation

Insulation, heating, windows and doors — MaPrimeRénov' and CEE eligibility, costing of your net contribution and management under RGE CertiRénov certification.

Project management

Coordination of the trades, scheduling and site coordination (OPC), budget and schedule monitoring, handover of works — you stay in control of your contracts.

General contractor

A single turnkey point of contact, from the first meeting to the handover of the keys, with a commitment to results — ideal for a controlled budget.

Municipalities served around Ontex

Regular work in Ontex and its immediate surroundings — if your municipality is not listed, contact us: we cover the whole of Savoie and Haute-Savoie.

Frequently asked questions — Ontex

Do you need an architect to renovate a traditional village house in Ontex?
For the interior renovation of an existing village house or farmhouse in Ontex, an architect registered with the Ordre is not required as long as the floor area created stays below 150 m². A project manager can draw up the plans, submit the prior declaration (déclaration préalable) or building permit application (if the facade is altered, openings are created or an extension is built), coordinate the trades and sign off the works. Using an architect becomes mandatory again for a new build or for an extension that takes the total floor area above 150 m². In rural mountain areas, respecting traditional materials and volumes is decisive: Atelier NovAlp brings architect and project manager together in-house and adapts the arrangement to your project.
Can a farmhouse or barn in Ontex be converted into a home?
Yes, subject to the Ontex local plan (PLU) regulations and the rules applicable in mountain areas. Converting an old farmhouse or barn into housing (change of use) often requires a prior declaration (déclaration préalable) or building permit, respect for the existing volumes and for roof and facade colours, and sometimes requirements linked to views over Lac du Bourget. We first survey the existing building, check feasibility against the zoning, then put together the planning application and manage all the works — structural work, roof structure, insulation, services, finishes — through to handover.
What budget should you plan to renovate a village house in Ontex?
In Ontex, a small village above Lac du Bourget, projects mostly involve village houses, farmhouses and homes (main residences as well as second homes) that are often old. As a guide: a light interior renovation (paintwork, floors, kitchen, bathroom) costs €700 to €1,000/m²; a full renovation including services, roof structure and insulation starts at around €1,300/m² and can exceed €2,200/m² for high-end finishes or a major farmhouse conversion. Access to the hamlets and the nature of the old building can affect the overall budget. A free preliminary study with a site visit lets us refine the budget before you commit to anything.
What planning rules apply in Ontex?
Ontex is a rural commune in Savoie, part of the Grand Lac conurbation, located on the western slope of Mont du Chat. Planning applications are governed by the municipal local plan (PLU) and the provisions of the Loi Montagne (mountain law), which regulate in particular siting, heights, facade and roof colours, the appearance of outbuildings and the preservation of landscape views towards Lac du Bourget. The natural and agricultural character of much of the area limits the scope for new builds and favours the restoration of existing buildings. We always check the zone regulations before drawing, so that the application complies from the first submission.
Do you work in Ontex and the neighbouring municipalities?
Yes. From our office in Aix-les-Bains, a few minutes from the lake shore, we work in Ontex and the neighbouring municipalities on the slopes of Mont du Chat and around the lake: La Chapelle-du-Mont-du-Chat, Bourdeau, Le Bourget-du-Lac, Chanaz and Aix-les-Bains. Our services cover the renovation of village houses and farmhouses, conversions, extensions and RGE energy renovation. We guarantee a response within 48 hours and a free, no-obligation initial feasibility meeting.
Planning a project in Ontex?

Let's talk
with Lac du Bourget as a backdrop.

A few minutes from Ontex from our office in Aix-les-Bains. We come and visit your village house, farmhouse or plot, spread the plans out on the table and leave with a genuine preliminary feasibility study. First meeting and first estimate: free and with no obligation.