The average price per m² in Cayeux-sur-Mer is 3 575 €/m² for an apartment, based on actual notarised (DVF) sales. About 30 transactions are recorded each year.
Ambience illustration of Cayeux-sur-Mer, a seaside resort of the bay of the Somme, in the Somme department.
In Cayeux-sur-Mer, the average price of apartments stands at 3 575 €/m², based on sales actually registered in the notaries' DVF database. That average covers a stock made up mainly of seaside houses, holiday villas and recent apartments close to the seafront and the promenade. Closeness to the shingle beach, the view over the Channel, the condition of the property and its energy performance move prices. The strong presence of second homes keeps the market tight. These notarial figures give a town-wide marker; a reliable valuation then rests on comparable properties, judged case by case.
Prices from the DVF file (Demandes de valeurs foncières, published by the DGFiP), transactions actually recorded at the notary at municipality level. Cross-referenced with the Notaires de France - INSEE indices. Learn more about our methodology.
Cayeux-sur-Mer lives to the rhythm of tourism in the bay of the Somme and of second-home buyers from Amiens, the Paris region and the north of France. Classified a Grand Site de France, the bay of the Somme draws a steady flow of visitors, around the shingle beach, the parc du Marquenterre and seal watching. That footfall supports demand for a coastal pied-à-terre, on a stock of seaside houses kept limited by the geography of the shingle bar and by coastal protection. Properties close to the seafront concentrate the value.
Distance from the beach, the view over the Channel and the quality of the property govern most prices; an energy-hungry home or one exposed to sea spray now trades at a discount. The retreat of the shoreline and the risk of flooding from the sea on this shingle coast are a lasting point of vigilance for the market. A seller offering a sound, well-placed house with a correct energy rating finds a buyer, while a price disconnected from the location lingers. Reliance on holiday demand remains the market's main factor of sensitivity in Cayeux.
Cayeux-sur-Mer sits below Saint-Valery-sur-Somme, the flagship town of the bay, but above resorts further south such as Mers-les-Bains and Le Tréport.
Cayeux-sur-Mer is recorded as early as the 8th century in the form Caldis, then Caio around 1076, before settling on its present name in 1836. The village grew facing the Channel, on the shingle bar that closes the south of the bay of the Somme. Long turned towards fishing and maritime life, the commune has an eventful history: in 1475 the town was burnt down on the orders of King Louis XI, before Henry II granted it privileges in 1547. This past as a coastal town, exposed to storms and to the retreat of the shoreline, shaped a tight settlement sheltered by the shingle.
In the 19th century, Cayeux lived on inshore fishing and on the working of silica pebbles, close to 99 % pure, used in the glass industry and in abrasives. From 1877, the division of a wide strip of shingle along the beach launched the seaside resort. As early as 1896, the council laid wooden boards forming a promenade in front of the beach huts. The departmental railway served the commune from 1887 to 1972: in 1903, close to 45 000 tickets were issued to Cayeux. A hamlet named Brighton then grew between Cayeux and Le Hourdel, marking the rise of seaside tourism.
The promenade today runs for around two kilometres, lined with 529 wooden beach huts, many of which carry a name chosen by their owners. The Cayeux lighthouse commands the coast: a first metal tower was raised in 1835, destroyed by the German army on 31 August 1944, then replaced by a 28 metre structure brought into service in September 1951. Part of the Grand Site of the bay of the Somme, the commune brings together a shingle beach, a nature reserve and the hâble d'Ault. This preserved setting, between sea, marsh and salt meadows, explains the residential and tourist appeal of Cayeux-sur-Mer today.
Cayeux-sur-Mer has 2 316 inhabitants according to INSEE, the French national statistics institute, a slightly falling population strongly supplemented by holidaymakers in season. The property market is dominated by the second home: according to INSEE, second homes account for close to 59 % of dwellings, against around 34 % main residences. The stock remains overwhelmingly made up of houses, apartments weighing only around 22 % of dwellings. Buyers are mainly households from Amiens, the Paris region or the north of France looking for a seaside house or a coastal pied-à-terre. Year-round residents are more often retired households and working people attached to the Picardy coast.
The average price of apartments in Cayeux-sur-Mer is 3 575 €/m², based on DVF sales completed before notaries. That average brings together varied properties, from the recent home close to the seafront to the apartment further back. Closeness to the beach, the view over the Channel, the floor level and the condition of the property explain most of the gaps. On a market kept tight by second homes, a reliable valuation rests on comparable sales rather than on the average alone.
The stock of Cayeux-sur-Mer is overwhelmingly made up of houses: seaside villas, fishermen's cottages and coastal homes. Apartments, rarer, are concentrated near the seafront and the promenade, often in recent or renovated developments. According to INSEE, they account for only around 22 % of dwellings. A buyer aiming for an apartment with a view will find limited supply, which supports prices in that segment.
Cayeux-sur-Mer is a seaside resort of the bay of the Somme, valued for its shingle beach, its bathing huts and its promenade. According to INSEE, close to 59 % of dwellings are second homes, bought by households from Amiens, the Paris region or the north of France. This holiday demand, concentrated in the warmer months, meets a supply limited by coastal protection and by the retreat of the shoreline, which holds prices up.
The most sought-after properties line the seafront and the promenade, with a view over the Channel and direct access to the shingle beach. The hamlet of Brighton, towards Le Hourdel, and the old centre also attract those looking for quiet. The further you move from the shore, inland or towards the recent housing developments, the more prices ease. The view, exposure to the wind and the condition of the property weigh heavily on the value of a house or an apartment here.
Yes. The commune comes under the Coastal Act and is exposed to the retreat of the shoreline and to the risk of flooding from the sea on this shingle bar. These elements frame building near the shore and can weigh on some exposed properties. Before a purchase or any works, it is wise to consult the local planning scheme, the risk prevention plan and the easements at the town hall to know what is really allowed on the plot.
This analysis is published by Immover, an independent observatory founded by Antony Barbier. Data sourced from official sources (DVF, INSEE, Notaries of France).