Stone mas renovation and extension in Provence – ACR Provence
Stone farmhouses Country manor houses Bouches-du-Rhône, Vaucluse, Var, Alpes-Maritimes One contractor for every trade

Mas and Bastide Renovation in Provence

A mas or a bastide rewards patience. Behind the stone walls there are usually a century or two of repairs, extensions and improvised fixes, and a good restoration respects all of that history while bringing the house up to modern standards of comfort. ACR Provence runs the whole project as a general contractor: structure, roof, stone and lime, networks and finishes, coordinated by one site manager, so that you never have to juggle a dozen separate trades, whether you live in Provence or abroad.

10yrsBuilder's warranty (garantie décennale) on structural work
48hFor a free, detailed quote after the site visit
1Site manager coordinating every trade
4Agencies across Provence and the French Riviera
Living room before renovation works in a villa in Puyricard – ACR Provence
Before any work starts

Reading an old Provençal house before the first quote

No two mas are built alike. Most began as a single farm building with thick walls of rubble stone laid in earth or lime mortar, then grew room by room as the family and the harvests grew. Bastides are more formal, with symmetrical facades, rendered walls and generous stairwells, but they tend to suffer from the same weaknesses: damp at the foot of the walls, tired roof timbers and decades of cement patches that stop the stone from breathing.

That is why every project starts with a survey of the building itself. We look at the load-bearing walls and their cracks, the condition of the beams and the roof, drainage around the house and the age of the electrics and plumbing. For buyers who are still negotiating, this visit helps put a realistic figure on the works before anything is signed with the notary (notaire).

  • Cracks, bulging walls and settlement, often linked to clay soils after dry summers
  • Roof structure, canal tiles and the génoise eaves
  • Rising damp, salt stains and cement renders that trap moisture
  • Existing electrics, plumbing and drainage, often several decades old
  • Earlier extensions, openings and outbuildings that may need reworking
Full building survey Diagnosis before design Useful before you buy
Materials that belong here

Stone, lime and terracotta: working with the original materials

The most common mistake on old Provençal houses is sealing them in cement. Hard cement renders and pointing lock moisture inside the walls, and that moisture then escapes through the stone itself, which crumbles over time. On a mas or a bastide we go back to lime: raking out failed joints, repointing exposed stonework with lime mortar and applying lime renders in colours that sit naturally in the landscape.

Inside, the same logic applies. Wherever they can be saved, we keep the terracotta floor tiles, stone sinks, fireplaces and old beams, and look for matching materials when repairs are needed. New openings, such as a wider kitchen doorway or a new staircase, are designed around the stone, with lintels and supports sized for the wall rather than forced into it.

  • Lime mortar repointing of exposed stonework
  • Traditional lime renders in colours suited to the region
  • Repair of canal-tile roofs and génoise eaves
  • Restoration or reuse of beams, floor tiles and stone features
  • New openings in load-bearing walls with properly sized lintels
Lime, not cement Breathable walls Character preserved
Restored facade of a seaside château-style villa in Saint-Cyr-sur-Mer – ACR Provence

Every trade coordinated, from structure to finishes

A full renovation of a mas or a bastide typically brings together masons, roofers, carpenters, plumbers, electricians, plasterers and tilers. ACR Provence is an all-trades building company (entreprise tous corps d'état): one site manager plans the sequence of works, coordinates our teams and our regular subcontractors, and stays your single contact from the first visit to the handover.

Structure and masonry

Stitching cracks, rebuilding damaged sections of stone wall and opening load-bearing walls with the right supports in place.

Load-bearing walls

Roofs and timber frames

Replacing rotten rafters, relaying canal tiles and rebuilding génoise eaves so that rainwater runs clear of the walls.

Canal tiles

Stone and lime

Repointing, lime renders and the repair of the stone walls and low garden walls that frame the property.

Breathable finishes

Plumbing, electrics and heating

Complete rewiring to current French standards, new plumbing and drainage, and heating systems chosen to suit thick stone walls.

Brought up to standard

Joinery and shutters

Windows, doors and shutters made to fit the existing openings, so the proportions of the facade are kept intact.

Made to measure

Floors, walls and interiors

Plasterwork, tiling, terracotta floors and paintwork, finished so that the old and the new sit comfortably together.

Finishing trades

Recent work on character properties

A few projects carried out by our teams in the south of France, from complete renovations to exterior restoration with traditional render.

Complete renovation of a villa in Puyricard, near Aix-en-Provence – ACR Provence
Puyricard, near Aix-en-Provence

Complete renovation of a family villa

Full renovation of a villa with a swimming pool, inside and out, managed from the first survey to the final finishes.

Interior renovation of a villa in Puyricard – ACR Provence
Puyricard

Interior of the same villa

The living spaces were renovated as part of the same project, with the site manager coordinating each trade in turn.

Exterior restoration with ochre render on a hotel in Le Lavandou – ACR Provence
Le Lavandou, Var

Exterior restoration with ochre render

Complete exterior restoration of a hotel building, with a new render and an ochre finish typical of the region.

Learn more about ACR Provence

Questions owners ask about restoring a mas or a bastide

Straight answers for buyers and owners who are new to renovating an old house in France.

Do I need planning permission to renovate a mas?
Interior work that leaves the outside of the house unchanged generally needs no authorisation. Changing the facade, the roof, the windows or the openings usually requires a prior declaration (déclaration préalable) at the town hall, while a large extension or turning a barn into living space calls for a building permit (permis de construire). Many mas and bastides also stand within 500 metres of a listed monument or inside a protected area; in that case the state heritage architect (Architecte des Bâtiments de France, ABF) must approve materials and colours. We advise you on which authorisation applies and work with partner architects when a project needs one.
Can the renovation go ahead while I live abroad?
Yes, you do not need to be in France during the works. Your site manager is your single point of contact, keeps you informed as the work progresses and meets you on site whenever you are in Provence. Our page on project management for owners who live abroad explains how this works in practice.
How much does it cost to restore a mas or a bastide?
There is no reliable price per square metre for an old stone house. The budget depends above all on the condition of the structure and the roof, how much of the plumbing and electrics must be replaced, the level of finish you want and access to the site. After the survey you receive a detailed, itemised quote within 48 hours, free of charge, and our renovation cost guide for Provence explains the main budget items.
How long does a full restoration take?
It depends on the size of the house, the permits involved and the season. Roofing and exterior lime work are best carried out away from the hottest and coldest weeks, because lime needs mild weather to cure properly, while interior trades can continue all year round. We give you an estimated schedule as soon as the scope of works is fixed.
Can you add an extension or a pool house at the same time?
Yes, and it often makes sense to plan everything together so that permits, earthworks and networks are handled once. Our pages on house extensions in Provence and pool house construction cover those projects in detail.
Is it worth keeping the old floor tiles and beams?
Usually, yes. Original terracotta tiles, old beams and stone fireplaces are a large part of what gives a mas its charm and its value, and they are hard to imitate convincingly. We assess each element during the survey: sound pieces are cleaned and treated, damaged ones are repaired or replaced with matching materials, and anything that is structurally unsafe is reinforced or renewed.

How a mas renovation unfolds, step by step

The same method applies whether you are restoring a small farmhouse in the Luberon or a large bastide in the countryside around Aix-en-Provence. Our agencies in Salon-de-Provence, Cavaillon, Trans-en-Provence and Le Cannet cover the Bouches-du-Rhône, the Vaucluse, the Var and the Alpes-Maritimes, and owners in the Alpilles can also read our page on villa renovation in Saint-Rémy-de-Provence.

1. Site visit
We meet you, or someone you choose, at the property and listen to how you want to live in the house.
2. Building survey
Walls, roof, timber, damp and networks are checked before anything is priced.
3. Design and plans
Layout, openings and materials are defined, with a partner architect when the project calls for one.
4. Quote within 48 hours
A free, itemised quote, trade by trade, with no hidden extras.
5. Permits
Prior declaration or building permit, plus the ABF's approval in protected areas.
6. Roof and structure first
The house is made sound and watertight before the interior is opened up.
7. Networks and finishes
Plumbing, electrics, plaster, joinery, floors and lime finishes follow in order.
8. Handover
A joint inspection at handover (réception des travaux), with any snags listed and put right.

Ready to talk about your mas or bastide?

Send us a few photos, the address and what you would like to achieve. We arrange a visit, survey the building and come back with a clear, costed proposal for the restoration.

  • Free site visit
  • Detailed quote within 48 hours
  • One site manager for every trade
  • 10-year warranty on structural work
  • Respect for the character of the house

Contact us

+33 6 24 06 88 81Monday to Friday, 7:30 am to 6:00 pm (French time)
provenceacr@gmail.comWe reply within 24 hours
Request a free quote

A short glossary for foreign owners

Mas

A traditional Provençal farmhouse built in local stone, often enlarged over several generations, with few openings on the north side to shelter it from the mistral wind.

Bastide

A country manor house, more formal than a mas, with a symmetrical facade, rendered walls and tall windows, often set in its own grounds.

Génoise

Two or three rows of canal tiles set in mortar under the eaves, designed to throw rainwater away from the facade.

Tomettes

Hexagonal or square terracotta floor tiles found in most old Provençal houses, often worth restoring rather than replacing.

Enduit à la chaux

Lime render: a breathable coating that lets old stone walls dry out, unlike cement, which traps moisture inside them.

DPE

The energy performance certificate (diagnostic de performance énergétique) that every seller must provide, and a useful starting point when planning improvements.