Small details, large negotiations: what sellers underestimate
Some sellers discover, on the day of the preliminary contract, that the pool was never declared. Others discover, during viewings, how a cluttered garage can hide the volumes. Between the two, the same surprise: what felt harmless for years suddenly sits at the centre of the negotiation.
We do not say this to frighten anyone. We say it because, on the Côte d’Azur, a villa sells as much by what it is as by what it can prove. A clean file reassures. An omission, even a small one, can leave the buyer imagining more than necessary. And that uncertainty, in a negotiation, often costs more than a check made in good time.
What the notaire and the buyer’s counsel look at
The missing DAACT. You obtained a building permit or a prior declaration, the works are finished, and no one filed the declaration attesting completion and conformity of the works. It is a form, Cerfa 13408, to be lodged with the town hall. The DAACT informs the municipality that the works are complete and attests that they conform to the authorisation obtained. Filing it starts the period during which the administration may challenge that conformity: generally three months, and five months in certain cases set out in the rules. At sale, the absence of a DAACT, or of a certificate of non-challenge, raises eyebrows with the notaire and the buyer’s counsel. Checking the situation early enough makes it possible to identify the steps available, their cost and their timing, before a negotiation begins.
Non-compliant wastewater treatment. Away from the public sewer, the seller must provide a SPANC inspection report less than three years old. If it finds a non-conformity, the law provides for works within a year of completion. The seller may carry them out beforehand, or leave them to the buyer. In practice, the buyer often asks for serious quotes and a price adjustment to match. Depending on the installation and the works envisaged, a soil study may also be requested. Without quotes, the buyer may build in a large safety margin. With quotes, one discusses. We prefer to discuss with quotes.
The public sewer, when you are in the zone. In a collective sewerage zone, connection is in principle mandatory. Inspection duties at sale must be checked for the municipality concerned. When the connection is incomplete or doubtful, the buyer and their notaire will notice. Better to know before they do.
The garage turned into a studio. Converting more than five square metres of garage into living space requires a prior declaration. Changing the exterior appearance, for example replacing the garage door with a glazed opening, requires one too, whatever the surface. The local plan may also require a parking space to be recreated. An undeclared studio does not "vanish" at sale: it appears in the plans, in the photographs, and in the buyer’s questions. One then needs to see what can be regularised, and what cannot, before talking price.
The carport whose formalities were forgotten. A car shelter, depending on its footprint, the local plan and the area, often needs a prior declaration, sometimes a building permit. Beyond a few square metres, the absence of authorisation shows. On the Riviera, where protected sectors and historic surroundings are common, the thresholds are often stricter. It is not the timber that costs dear on the day. It is the silence around its declaration.
The pool without authorisation. For an in-ground pool, a basin of more than ten square metres and up to one hundred generally needs a prior declaration. Beyond one hundred square metres, a building permit. In a protected sector, a declaration may be required from the first square metre. A tall cover can also push the file into a permit. An undeclared pool does not hide behind the olive trees: the buyer sees it, the notaire looks for it, and the negotiation takes care of the rest.
Cracks left unanswered. French law does not require a cracks survey in the sale file. Yet depending on their location, how they evolve and how significant they are, cracks on a façade, a load-bearing wall or a slab may justify an opinion from a structural engineer or a concrete design office. Without clear information, the buyer may imagine the worst. With a readable report, even one that recommends works, one negotiates on facts. On a sloping plot, common here, that caution is not a luxury.
What the law does not say, and what buyers see
The garden, a decisive first impression. On the Côte d’Azur, life is lived outdoors. Terrace, pine grove, olive walk, pool: it is often the first image the buyer keeps. A neglected garden does not only say "someone will have to mow". It can suggest that things have been left to slide, and the buyer then wonders what else. A well-kept garden, even a simple one, opens the visit. We see it every season.
Leaving room to project. Curtains chosen with love, a kitchen in a unique shade, a collection of memories on every wall: all of that tells a life. A strong imprint of the owners’ tastes and memories can, however, make it harder to project oneself. Not everyone can picture their own home behind yours. The more a house breathes, the more it welcomes. This is not a criticism of taste. It is an invitation to leave a little air.
Tidiness and signs of care. A messy or poorly kept house often triggers two thoughts. First: "what a cleaning job." Then: "what does this neglect suggest about what we cannot see?" The plumbing, the roof, the attic. That doubt can settle in during the visit, even if no one says it aloud. Tidying, a thorough clean, dusted radiators: this is not decoration. It is trust.
The real cost of small oversights
We deliberately quote no percentage discount. Every property, every file, every buyer is different. Our experience is that a technical defect discovered late can weigh on the negotiation, delay the sale, or even compromise it. A prepared, costed and explained defect can be discussed. A well-kept garden and an airy house are a pleasure to visit.
The risk is not having forgotten a paper ten years ago. It is discovering it on the day the buyer asks the question. The good decision is to open the file now, calmly, before the price depends on someone else’s imagination.
What we advise
Open the file before the photographs. Permits, prior declarations, DAACT, SPANC report, plans, works invoices: everything that sheds light on conformity. Checking early shows what can be regularised, what needs works, and what simply needs explaining.
Cost what is doubtful. Two quotes for wastewater works, a technical opinion where cracks justify it, a call to the town planning office about an annex. Figures calm conversations.
Care for what is seen first. The garden, the entrance, the light, the tidiness. On the Riviera, the first impression is often made outdoors.
Keep the house welcoming. Fewer objects, more space. The buyer must be able to see themselves living there.
We set out this preparation calendar in Selling in spring: what to prepare this autumn on the Riviera. On the energy calendar, which also weighs in a negotiation, see DPE 2027: your electrically heated villa could gain a class.
How we accompany you
We prefer awkward surprises early, over a coffee, rather than around a notaire’s table. An honest look at the file, a careful presentation, a negotiation led on facts: that is how we protect the price of a fine home.
If you are thinking of selling, we would be glad to go through the file with you, without judgement, with method.
Sources
Service-Public, Déclaration attestant l’achèvement et la conformité des travaux (DAACT), checked 7 July 2026. Cerfa 13408.
Service-Public, Diagnostic immobilier: assainissement des eaux usées, checked 26 February 2025. SPANC report less than 3 years old; works within a year of completion if non-compliant.
Service-Public, Installation ou construction d’une piscine privative. Thresholds: prior declaration generally from over 10 m² to 100 m²; building permit beyond; stricter rules in protected sectors.
Service-Public, Pergola, carport or wood shelter authorisations, checked 11 April 2025. Thresholds by footprint, local plan and sector.
Service-Public, Authorisation to turn a garage into living space, checked 21 November 2025. Prior declaration beyond 5 m², or as soon as the exterior appearance changes.
French Construction and Housing Code, article L. 271-4 (contents of the technical diagnosis file).
French government non-collective sanitation portal, buyer-seller leaflet.