Lime walls: limewash, lime plaster and stucco on the Riviera

In an old stone house the rule we follow is plain. Hydraulic lime underneath where you need strength, air lime on top for body and colour. That pairing respects the wall instead of sealing it, which avoids damp getting trapped behind a waterproof skin.

We stay here on the decorative choice and the coordination of finishes. The wall's structure, its soundness and its load-bearing role belong to other trades, and we point you to them when they are needed.

Colour: natural pigments and southern light

Air lime takes natural pigments, and that is where a room finds its character. Ochres, earths, oxides: the colour is either mixed through the body or brushed on as a wash, fixed with casein or alum.

What makes lime special is the way it catches light. The surface is never perfectly flat. It holds tiny variations that move the colour through the day. A pale ochre wall looks creamy in the morning and warmer by late afternoon. That is the opposite of a flat matte paint, which stays fixed from dawn to dusk.

Our Nordic clients, who often want quiet tones, get a white from lime that is never cold. A limewashed off-white holds a depth that paint white does not. On the coast, where midday light flattens bright colours, these muted tones hold up better: plaster pink, faded olive, washed-out blue, sand.

Wet rooms: bathroom and kitchen without nasty surprises

Lime is naturally hygroscopic. It absorbs vapour when the air is humid and releases it as the air dries. That passive movement cuts condensation, and therefore mould. Its mineral make-up is antiseptic, which helps further.

That makes lime a good choice for a bathroom or kitchen, on one condition: protect the spots in direct contact with water. Raw lime erodes under a shower jet or constant run-off. For those areas you switch to burnished tadelakt, treat the surface, or keep a dedicated material behind the water point. Everywhere else, lime bathroom walls age very well.

Budget and upkeep: what it costs, what it asks

Let us work in honest ranges. An interior lime finish usually runs between 40 and 80 euros a square metre depending on the technique, and more like 45 to 90 euros with a skilled artisan for a stucco or tadelakt. A plain limewash over a sound wall costs far less, since it is only a finish coat.

Upkeep is light. A lime finish lasts fifteen to twenty-five years with no major work. A refresh coat every five to ten years is enough to bring a tired colour back. Spread over the years, the cost sits below a synthetic render that needs redoing more often.

The real line item is labour. Lime needs more coats and a sure hand. A poor applicator shows at once, and a patch is hard to blend into the rest of the wall. So we spend as much time choosing the artisan as choosing the colour.

What we would do

If you are torn, here is where we land. On a sound, flat wall, an air-lime wash in a very pale ochre gives you most of the effect for a fraction of the budget. It is the most underrated move in Provencal decoration.

On an uneven or marked wall, a fine plaster evens the surface and adds the body that recent renovations often lack. Keep polished stucco for the rooms you really want to dress: an entrance, a living room, a fireplace wall. And tadelakt for a bathroom you treat as a room in its own right.

The trap to avoid: laying lime over plastic paint or a waterproof render. The material will not grip and the wall stops breathing. Before any colour, we look first at what is already on the wall.

To go further, you can browse our [decoration services](/services/decoration), our approach to [colour advice](/services/conseil-couleur), and the pages for our areas around [Valbonne](/zones/valbonne) and [Mougins](/zones/mougins). Our [journal](/journal) also covers old floors, tomettes and stone, which sit very well against these walls.

Frequently asked questions

What is the difference between limewash and lime plaster?

Limewash is heavily thinned lime, brushed on in fine coats to colour a wall that is already sound. Lime plaster is thicker, troweled on, and it adds body while evening out minor flaws in the surface.

Can you use lime in a bathroom?

Yes, lime suits bathrooms well because it regulates humidity and limits mould. You only need to protect the areas in direct contact with water, for example by switching to burnished tadelakt inside the shower.

How much does lime plaster cost per square metre?

Expect 40 to 80 euros a square metre depending on the technique, and 45 to 90 euros with a skilled artisan for a stucco or tadelakt. A simple limewash finish costs considerably less.

Can lime go over existing paint?

No, lime will not grip plastic paint or a waterproof render, and the wall then loses its ability to breathe. It needs a mineral, porous substrate, or proper preparation before any application.

Air lime or hydraulic lime for an old wall?

For the finish coat on an old stone wall, air lime is the right choice because it breathes and moves with the wall. Hydraulic lime, which is harder, is used as a base coat or in damp rooms.

Does lime need a lot of maintenance?

No, a lime finish lasts fifteen to twenty-five years with no major work. A simple refresh wash every five to ten years is enough to bring the colour back to life.

Which colours work for a lime wall on the Riviera?

Muted tones hold up best under strong southern light: plaster pink, pale ochre, faded olive, washed blue and sand. A limewashed off-white also keeps a depth that paint white never has.

A closing word

Lime rewards patience and a good hand. If you are wondering which finish would suit your walls, send us a few photos of your rooms and their light, or let us set up a first meeting. We look at the state of the wall, the light and your colours, and we tell you plainly what is worth doing in your home.