Blog — Guides to
construction & renovation
in Savoie.
Local guides, features by town and by service. Everything you need to prepare your construction or renovation project in Savoie and Haute-Savoie. Written by our team of project managers, this journal brings together our advice on prices per m², planning procedures (building permit, prior declaration (déclaration préalable)), energy renovation grants (MaPrimeRénov', CEE, éco-PTZ) and how a project unfolds, from the first sketch to completion. You will find pages dedicated to each town where we work — Aix-les-Bains, Annecy, Chambéry and their neighbouring municipalities — and to each trade: house and chalet construction, apartment renovation, extensions and adding a storey, loft conversions, RGE energy renovation, roofing, external wall insulation, façade restoration, windows and doors, and interior fit-out. Our aim: to give you clear, local benchmarks to estimate your budget, anticipate timeframes and make the right choices before you start, whether you are still thinking things over or ready to ask for a quote.
Project manager in Annecy: your project by the lake
Planning a construction or renovation project in the Annecy area? Find out why you should call on a local project manager, the constraints of Annecy's local plan (PLU), and our projects in the region.
Discover Annecy →Guides & advice
Prices, grants, procedures
Renovation price per m² in Savoie (2026)
Detailed price ranges by type of work, cost factors and examples of real budgets in Savoie.
Cost of building a chalet in Haute-Savoie (2026)
Cost per m² by type of chalet (timber, contemporary, luxury), land and RE2020 regulations.
Architect, project manager or house builder?
Comparison of roles, costs and guarantees to help you choose the right professional in Savoie.
House extension: price, permits and timeframes
Price per m² by type of extension, building permit procedures and real timeframes in Savoie.
Home rated F: you have until 2028
No, F is not banned yet. The real timetable, the rent freeze that is already costing you, and why you should plan ahead.
Home rated G: banned from rental
What the law really says, what you risk, and the DPE calculation that changed on 1 January 2026.
General contractor: one contract, one price, one deadline
Project manager, general contractor or house builder: the differences, and which one suits your project.
MaPrimeRénov' 2026: the guide to grants
Amounts, conditions, supported pathway vs single measures, and combining with éco-PTZ and CEE.
How much does a project manager cost?
Percentage fees, fixed fee or time-based billing: everything you need to know about a project manager's rates.
Chien assis: adding a dormer
What a dormer brings to your attic, what it changes to the roof structure, and the permissions to obtain before opening up the roof.
Unconverted loft insulation
Blown-in or rolls, the R ≥ 7 requirement that governs the grants, and what MaPrimeRénov' no longer funds in 2026.
Insulating walls from the inside
What thickness to reach R = 3.7, managing water vapour on old walls, and what quotes leave out.
Re-roofing: steps, costs and formalities
The stages of the work, what makes up the quote, the prior declaration, VAT at 10 or 5.5% and the grants available when you insulate at the same time.
By theme
Types of project
Chalet construction in Savoie and Haute-Savoie
Traditional, contemporary or alpine pasture chalet: our project management expertise for building in the mountains, respecting the local plan (PLU) and the site.
Chalet in Chamonix
Building and renovating chalets in the Mont Blanc valley: altitude constraints, a specific local plan (PLU) and high-end mountain architecture.
Chalet in Megève
Prestige chalets and high-end renovation in Megève: traditional Savoyard craftsmanship for the residential and rental market.
Apartment renovation in Aix-les-Bains & Chambéry
Full renovation, opening up load-bearing walls, kitchens, bathrooms. Our services and experience with apartments.
Interior architect in Haute-Savoie
Bespoke interior design, decoration and fit-out throughout department 74: chalets, apartments and contemporary villas.
Interior architect in Aix-les-Bains
Interior design and decoration of apartments and houses in the Aix-les-Bains area. Bespoke projects, from the plan to the choice of materials.
By town
Savoie & Haute-Savoie
Architect and project manager in Aix-les-Bains
Our office is based in Aix-les-Bains. Construction, house and apartment renovation, extensions around Lake Bourget.
Project manager in Annecy
Construction, renovation and extensions in the Annecy area. Local plan (PLU) constraints, lakeside rules and local projects.
Project manager in Annecy-le-Vieux
Renovation of villas, apartments and co-ownership buildings on the hillsides of Annecy-le-Vieux. A single point of contact, RGE general contractor.
Project manager in Veyrier-du-Lac
Construction, renovation and extensions in Veyrier-du-Lac. Loi Littoral, local plan (PLU) and lakeside constraints handled from A to Z.
Project manager in Menthon-Saint-Bernard
Renovation, extensions and construction in Menthon-Saint-Bernard. Buildings of character, protected sites and the Loi Littoral handled by a single point of contact.
Project manager in Talloires-Montmin
Chalet renovation, extensions and construction in Talloires-Montmin. Tourist area and listed sites under control, RGE general contractor.
Project manager in Duingt
Construction, renovation and extensions in Duingt, between lake and mountains. Loi Littoral and local plan (PLU) handled by your local project manager.
Project manager in Saint-Jorioz
Renovation, extensions and construction in Saint-Jorioz, on the west shore of the lake. A single point of contact, from the first sketch to completion.
Project manager in Sevrier
Construction, renovation and extensions in Sevrier, 6 km from Annecy. Scarce land, Loi Littoral and local plan (PLU) handled from start to finish.
Project manager in Doussard
Renovation, extensions and construction in Doussard, at the end of the lake. Natural areas, nature reserve and Loi Littoral handled by a single point of contact.
Project manager in Seynod
House and apartment renovation and extensions in Seynod, the south-western gateway to Annecy. A single point of contact, RGE general contractor.
Project manager in Cran-Gevrier
Renovation of apartments, co-ownership buildings and houses in Cran-Gevrier, the urban heart of western Annecy. Turnkey support.
Project manager in Meythet
Renovation of 1960s-80s houses, adding a storey and extensions in Meythet. Grand Annecy's intermunicipal local plan (PLUi) handled from A to Z.
Project manager in Pringy
New builds, extensions and renovation in Pringy, north of Annecy. A single point of contact, from the first sketch to completion.
Project manager in Épagny-Metz-Tessy
Construction, extensions and renovation in Épagny-Metz-Tessy, a fast-growing municipality north of Annecy. RGE general contractor.
Project manager in Poisy
New builds, farmhouse renovation and extensions in Poisy. Your project manager for a turnkey project west of Annecy.
Project manager in Argonay
Villa renovation, extensions and energy renovation in Argonay, on the northern hillsides of Annecy. A single RGE point of contact.
Project manager in Chavanod
Construction, farm building refurbishment and extensions in Chavanod, a green municipality south-west of Annecy.
Project manager in Montagny-les-Lanches
New builds, farmhouse renovation and extensions in Montagny-les-Lanches, on the heights south-west of Annecy.
Project manager in Quintal
Renovation of chalets, detached houses and old farmhouses in Quintal, at the foot of the Semnoz. Project manager and RGE general contractor.
Project manager in Villaz
Construction, extensions and renovation in Villaz, on the plateau at the foot of the Parmelan. A single turnkey point of contact.
Project manager in Nâves-Parmelan
Farmhouse renovation, construction and extensions in Nâves-Parmelan, east of Annecy. Full support, RGE company.
Project manager in Dingy-Saint-Clair
Renovation of chalets and mountain farmhouses in Dingy-Saint-Clair, in the Fier valley. Mountain planning rules handled from start to finish.
Project manager in Alby-sur-Chéran
Renovation of old houses, construction and extensions in Alby-sur-Chéran, a medieval village between Annecy and Aix-les-Bains.
Project manager in La Balme-de-Sillingy
New builds, extensions and renovation in La Balme-de-Sillingy, at the foot of the Mandallaz. RGE general contractor.
Project manager in Sillingy
Renovation of detached houses, extensions and farmhouse refurbishment in Sillingy, north-west of Annecy. A single point of contact.
Project manager in Groisy
Farmhouse renovation, new builds and extensions in Groisy, on the Annecy-Geneva corridor. Turnkey RGE project manager.
Project manager in Charvonnex
Construction, extensions and farmhouse refurbishment in Charvonnex, north of Annecy. Full support, RGE company.
Project manager in Cuvat
Construction, extensions and renovation in Cuvat, a hilltop village between Annecy and the Plateau de la Caille. Turnkey RGE.
Project manager in Chapeiry
New builds, farmhouse renovation and extensions in Chapeiry, in the heart of the Albanais. A single RGE point of contact.
Project manager in Le Bourget-du-Lac
Construction, renovation and extensions on the shores of Lake Bourget. Loi Littoral and Grand Lac local plan (PLU) under control, RGE general contractor.
Project manager in Grésy-sur-Aix
Renovation, extensions and construction in Grésy-sur-Aix, on the doorstep of Aix-les-Bains. The closest project manager.
Project manager in Tresserve
Renovation of villas of character and extensions in Tresserve, between Aix and the lake. Loi Littoral, a single RGE point of contact.
Project manager in Viviers-du-Lac
Construction, extensions and renovation in Viviers-du-Lac, south of Aix. Turnkey support, RGE general contractor.
Project manager in Mouxy
Renovation, extensions and adding a storey in Mouxy, on the hillsides of Aix-les-Bains. Lake views, a site right on our doorstep.
Project manager in Drumettaz-Clarafond
Construction, extensions and renovation in Drumettaz-Clarafond, south of Aix. A single turnkey RGE point of contact.
Project manager in Voglans
Construction, extensions and renovation in Voglans, between Aix and Chambéry. Local project manager, RGE general contractor.
Project manager in Brison-Saint-Innocent
Renovation of lake-view villas and construction in Brison-Saint-Innocent, on the shore of Lake Bourget. Loi Littoral, turnkey RGE.
Project manager in Bourdeau
Renovation of lake-view villas and construction on sloping sites in Bourdeau, at the foot of the Dent du Chat. Loi Littoral under control.
Project manager in La Chapelle-du-Mont-du-Chat
Chalet renovation and mountain construction in La Chapelle-du-Mont-du-Chat, above the lake. Turnkey RGE.
Project manager in Pugny-Chatenod
Renovation, extensions and lake-view construction in Pugny-Chatenod, on the Revard road. A single RGE point of contact.
Project manager in Le Montcel
Farmhouse renovation, construction and extensions in Le Montcel, at the foot of the Revard. Full support, RGE company.
Project manager in Trévignin
Construction, extensions and renovation in Trévignin, a balcony overlooking Lake Bourget. Local turnkey project manager.
Project manager in Saint-Offenge
Farmhouse renovation, construction and extensions in Saint-Offenge, between the Revard and the Albanais. RGE general contractor.
Project manager in Méry
Construction, extensions and renovation in Méry, between Aix and Chambéry. A single point of contact, from the first sketch to completion.
Project manager in Ontex
Renovation of traditional country houses and farmhouses in Ontex, on the slopes of the Mont du Chat. Mountain planning rules under control, turnkey RGE.
Project manager in Chindrieux
Renovation, construction and extensions in Chindrieux, in Chautagne north of the lake. Loi Littoral, RGE general contractor.
Project manager in Ruffieux
Farmhouse refurbishment, construction and extensions in Ruffieux, in Chautagne. A single turnkey point of contact.
Project manager in Chanaz
Renovation of old houses and houses of character in Chanaz, the little Venice of Savoie. Heritage buildings under control, RGE.
Project manager in Verel-Pragondran
Farmhouse renovation, construction and extensions in Verel-Pragondran, in the foothills of the Bauges. Turnkey, RGE company.
Renovation in Aix-les-Bains
Renovation of houses, apartments and chalets in Aix-les-Bains and the surrounding area. Prices, financial grants and project management support.
Roof renovation in Aix-les-Bains
Fast roof refurbishment in Aix-les-Bains: tiles, slate, zinc, roof structure and insulation. Watertight in just a few days.
External insulation (ITE) in Aix-les-Bains
External wall insulation and façade restoration in Aix-les-Bains. Less heat loss, MaPrimeRénov grants.
Energy renovation in Aix-les-Bains
Insulation, heat pump, windows and doors: stop living in an energy-inefficient home in Aix-les-Bains with an RGE project manager.
Kitchen & bathroom renovation
Turnkey kitchens and bathrooms in Aix-les-Bains: walk-in showers, plumbing, tiling, all trades coordinated.
Demolition & strip-out in Aix-les-Bains
Full or partial demolition, strip-out before renovation, opening up load-bearing walls in Aix-les-Bains. Waste management included.
Roof renovation in Annecy
Fast roof refurbishment in Annecy and around the lake: tiles, slate, zinc, roof structure and insulation.
External insulation (ITE) in Annecy
External wall insulation and façade restoration in Annecy. MaPrimeRénov grants.
Energy renovation in Annecy
Insulation, heat pump, windows and doors: stop living in an energy-inefficient home in Annecy with an RGE project manager.
Kitchen & bathroom renovation in Annecy
Turnkey kitchens and bathrooms in Annecy: walk-in showers, plumbing, tiling, all trades.
Demolition & strip-out in Annecy
Full or partial demolition, strip-out before renovation, opening up load-bearing walls in Annecy.
Roof renovation in Chambéry
Fast roof refurbishment in Chambéry: tiles, slate, zinc, roof structure, in keeping with the conservation area.
External insulation (ITE) in Chambéry
External wall insulation and façade restoration in Chambéry. MaPrimeRénov grants.
Energy renovation in Chambéry
Insulation, heat pump, windows and doors: stop living in an energy-inefficient home in Chambéry with an RGE project manager.
Kitchen & bathroom renovation in Chambéry
Turnkey kitchens and bathrooms in Chambéry: walk-in showers, plumbing, tiling, all trades.
Demolition & strip-out in Chambéry
Full or partial demolition, strip-out before renovation, opening up load-bearing walls in Chambéry.
Window replacement in Aix-les-Bains
PVC, aluminium and timber windows and double glazing in Aix-les-Bains. Comfort, insulation and MaPrimeRénov grants.
Conservatory & glazed extension in Aix-les-Bains
Conservatory and glazed extension in Aix-les-Bains: a bright, insulated living space that blends into your home.
Outdoor landscaping in Aix-les-Bains
Terraces, pools, pool houses and landscaping in Aix-les-Bains, managed by a project manager.
Office fit-out in Aix-les-Bains
Offices, commercial premises and commercial fit-out in Aix-les-Bains: public-access buildings (ERP), disabled access (PMR), works in occupied premises.
Window replacement in Annecy
PVC, aluminium and timber windows and double glazing in Annecy. Comfort, insulation and MaPrimeRénov grants.
Conservatory & glazed extension in Annecy
Conservatory and glazed extension in Annecy: a bright, insulated living space that opens onto the landscape.
Outdoor landscaping in Annecy
Terraces, pools, pool houses and landscaping in Annecy and around the lake, managed by a project manager.
Office fit-out in Annecy
Offices, commercial premises and commercial fit-out in Annecy: public-access buildings (ERP), disabled access (PMR), works in occupied premises.
Window replacement in Chambéry
PVC, aluminium and timber windows and double glazing in Chambéry. Comfort, insulation and MaPrimeRénov grants.
Conservatory & glazed extension in Chambéry
Conservatory and glazed extension in Chambéry: a bright, insulated living space facing the mountains.
Outdoor landscaping in Chambéry
Terraces, pools, pool houses and landscaping in Chambéry and its outskirts, managed by a project manager.
Office fit-out in Chambéry
Offices, commercial premises and commercial fit-out in Chambéry: public-access buildings (ERP), disabled access (PMR), works in occupied premises.
Interior architect in Annecy
Bespoke space planning, decoration and fit-out in Annecy, from the 3D plan to completion.
Interior architect in Chambéry
Turnkey decoration, fit-out and interior renovation in Chambéry, including older properties.
Loft conversion in Aix-les-Bains
Turn your unused loft into living space in Aix-les-Bains: feasibility, RGE insulation, prices.
Loft conversion in Annecy
Gain living space under the roof in Annecy: feasibility, insulation, staircase, procedures.
Loft conversion in Chambéry
Loft conversions in Chambéry: roof structure, Loi Carrez floor area, insulation and finishes, in old and new buildings alike.
House extension in Aix-les-Bains
Single-storey or two-storey extension in Aix-les-Bains: timber frame or masonry, local plan (PLU), permits, price per m².
House extension in Annecy
Extend rather than move in Annecy: extensions, strict local plan (PLU), Loi Littoral, project management support.
House extension in Chambéry
House extensions in Chambéry and its outskirts: ground coverage, Grand Chambéry local plan (PLU), permits, prices.
Adding a storey to a house in Aix-les-Bains
Add a floor in Aix-les-Bains: structural survey, timber frame, permits, when land is in short supply.
Adding a storey to a house in Annecy
Land is scarce in Annecy: adding a storey is often the best option. Structure, timber frame, local plan (PLU), prices.
Adding a storey to a house in Chambéry
Raising your house in Chambéry: structural feasibility, roof structure, conservation area/ABF, price per m².
Façade restoration in Aix-les-Bains
Renovate your façade in Aix-les-Bains: cleaning, cracks, render, paint, optional external insulation, price per m².
Façade restoration in Annecy
Façade restoration in Annecy: survey, low-pressure abrasive cleaning, render, paint, ABF procedures in conservation areas.
Façade restoration in Chambéry
Façade restoration in Chambéry: older properties, Sardinian-era buildings, conservation area, co-ownership buildings, price per m².
Architect and project manager in Chambéry
Apartment renovation, new builds and extensions in the capital of Savoie and its neighbouring municipalities.
Architect and project manager in Haute-Savoie
Annecy, La Clusaz, Megève, Chamonix, Thonon, Évian… our work throughout department 74: chalets, new builds and renovation.
Architect and project manager in Albertville
New builds, renovation and extensions between the Combe de Savoie and the Beaufortain. Our work in the Albertville area.
Architect and project manager in Annemasse
The Annemasse conurbation and the French Genevois: construction, renovation and extensions on the Swiss border.
Architect and project manager in Thonon-les-Bains
The Chablais and the shores of Lake Geneva: construction, house or apartment renovation and contemporary villas in the Thonon area.
Architect and project manager in the Pays de Gex
Ferney-Voltaire, Gex, Divonne-les-Bains: high-end construction and renovation at the foot of the Jura, facing Lake Geneva.
Architect in Évian-les-Bains
South shore of Lake Geneva: high-end contemporary villas, heritage renovation and houses of character facing the lake.
Chalet in the Aravis
La Clusaz, Grand-Bornand, Manigod: authentic timber and stone chalets at the foot of the massif's ski resorts.
Project manager in Chautagne
Barn conversion, lakeside renovation under the Loi Littoral, roofing and flood risk plans (PPRi): the 8 municipalities of Chautagne, 20 min from Aix-les-Bains.
Project manager in Conjux
5 km of shoreline on Lake Bourget and nearly one home in two a second home: renovating under the Loi Littoral.
Towns in Savoie & Haute-Savoie
11 municipalities
Project manager in Rumilly
house renovation, extensions, new builds and RGE energy renovation in the Albanais.
Project manager in Saint-Julien-en-Genevois
renovation, extensions and new builds in the cross-border Genevois.
Project manager in Cluses
apartment and house renovation, extensions, energy renovation in the Arve valley.
Project manager in Sallanches
chalet construction, renovation, extensions and RGE energy renovation.
Project manager in Bonneville
renovation, extensions, new builds and RGE energy renovation.
Project manager in La Roche-sur-Foron
renovation of old buildings, extensions, construction, RGE energy renovation. From Aix.
Project manager in La Motte-Servolex
renovation, extensions, new builds and RGE energy renovation. From Aix.
Project manager in La Ravoire
house renovation, extensions, RGE energy renovation.
Project manager in Challes-les-Eaux
renovation, extensions, construction and RGE energy renovation. From Aix.
Project manager in Montmélian
renovation of old wine-growing buildings, extensions, construction and RGE energy renovation. From Aix.
Project manager in Ugine
renovation, extensions, new builds and RGE energy renovation.
Resorts & chalets
10 resorts
Chalet in La Clusaz
project management and general contracting under a single contract.
Chalet in Le Grand-Bornand
project management and general contracting under a single contract.
Chalet in Morzine
project management and general contracting under a single contract.
Chalet in Les Gets
project management and general contracting under a single contract.
Chalet in Combloux
project management and general contracting under a single contract.
Chalet in Saint-Gervais-les-Bains
project management and general contracting under a single contract.
Chalet in Courchevel
project management and general contracting under a single contract.
Chalet in Méribel
project management and general contracting under a single contract.
Chalet in Val d'Isère
project management and general contracting under a single contract.
Chalet in Tignes
project management and general contracting under a single contract.
Chautagne, theme by theme
8 guides · 8 municipalities
Converting a barn
Change of use, identification in the intermunicipal local plan (PLUi) and CDPENAF opinion: what decides a barn project in Chautagne.
Loi Littoral on the lakeside
Chindrieux, Conjux, Saint-Pierre-de-Curtille: the 100 m coastal strip, refurbishing existing buildings, areas close to the shore.
Building in a flood zone
Flood risk plan (PPRi) for the Chautagne plain: 7 municipalities out of 8, reference flood level, foundations and crawl space.
Roof renovation
Refurbishment, roof structure, zinc work and moss removal on old buildings: roofing + insulation eligible for RGE grants.
Stone walls & façades
Rising damp, breathability, lime renders: why cement is unsuitable for old buildings.
Energy renovation
Which works to start with, and which grants our RGE CertiRénov certification gives access to.
Renovating to let
Conjux 42% and Chanaz 33% second homes: DPE energy rating, upgrading and local constraints.
Extending your house
Extension, adding a storey or loft conversion: the 150 m² threshold and what the zoning really allows.
Sarking & roof insulation
Savoie & Haute-SavoieOur expertise, in detail
Technical guides
Traditional roof structure
Traditional or trussed roof, when to rework it, timber inspection and snow loads in the mountains.
Convertible lofts
Height, pitch, type of roof structure: the three measurements that tell you whether your loft can be converted.
Adding a storey to your house
Gain a floor without using up land: structural feasibility, timber frame and local plan (PLU) rules.
Cost of adding a storey
The seven items in the quote, and why work on the existing structure can make the budget vary twofold.
Renovating a barn
Change of use, structural survey, insulating an old volume and large openings.
Timber-frame extension
Lightness, prefabrication and built-in insulation: and above all, the connection to the existing building.
Further reading
Services & certifications
Why choose a local project manager in Savoie?
Project management, general contracting, RGE energy renovation: all our services for your construction or renovation project.
RGE energy renovation in Savoie
RGE CertiRénov-certified project manager. Works eligible for MaPrimeRénov' and CEE for your apartment or house.