The average price per m² in Porce (Saint-Nazaire) is 3 225 €/m² for an apartment, within a range of 2,8 to 3,7 k€ per m², based on actual notarised (DVF) sales. Over the period, the market held steady over 5 years and fell 3,8 % over the last 12 months, with about 44 transactions per year.

Porcé, between its beach, the Gavy Océanis site and the green corridor of the western coast of Saint-Nazaire.
Apartments in the Porce district of Saint-Nazaire sell at an average price of around 3 225 €/m², based on prices actually recorded (DVF transactions). Between 2 829 and 3 663 €/m² covers half of all sales, the gap reflecting how close the property is to the beach and the seafront, the view, the type of property and its condition. Five-year trend: 0 %.
Prices from the DVF file (Demandes de valeurs foncières, published by the DGFiP), transactions actually recorded at the notary, aggregated at district level using the IRIS zoning of INSEE. Cross-referenced with the Notaires de France - INSEE indices. Learn more about our methodology.
After 3 224 €/m² in 2021, the average price in the Porce district of Saint-Nazaire reaches 3 225 €/m² in 2026, around 0 % over the period.
The district has local shops and benefits from the proximity of the neighbouring areas of the western coast for everyday needs.
Porcé beach, the green corridor and the Gavy Océanis water sports site make the area a place for swimming, walking and water sports.
The services and offices of the centre of Saint-Nazaire remain reachable by road and public transport from the western coast.
Porcé, around its beach on the western coast of Saint-Nazaire. Google Maps.
Porcé is a district on the western coast of Saint-Nazaire, between the seafront and the green corridor, close to the Gavy Océanis site. It is part of the town's coastal development area, extending the seaside districts of the south-west.
Its sandy beach, one of the Saint-Nazaire beaches with lifeguards in the summer season, borders an area that has stayed close to nature, between woodland and seafront. The Gavy Océanis site, geared to water sports, rounds out that coastal identity.
The housing stock mixes houses and apartment buildings close to the shore, in a setting that is greener and slightly set back from the most central parts of the coast. That combination of beach, greenery and seafront supports a price level in line with the town's seaside areas.
Porcé attracts buyers looking for the seaside in a leafy setting: families, main-residence purchasers and enthusiasts of the coast and water sports. The proximity of the beach, the green corridor and the Gavy site steers demand towards buyers attached to quality of life, between nature and seafront, in the west of the town.
The average price in Porce is 3 225 €/m² for an apartment (actual DVF transactions, notarised sales), within a range of 2 829 to 3 663 €/m² depending on the building, the storey and the condition.
Porcé lies on the western coast of Saint-Nazaire, between the seafront and the green corridor, close to the Gavy Océanis site. It is a seaside district that has stayed close to nature.
Yes. Porcé beach, a sandy beach on the western coast, is one of the Saint-Nazaire beaches with lifeguards in the summer season, in an area bordered by woodland and seafront.
The district combines a beach, a green corridor and the Gavy water sports site in a setting greener than the central parts of the coast. It appeals to buyers looking for the seaside and a setting close to nature.
This analysis is published by Immover, an independent observatory founded by Antony Barbier. Data sourced from official sources (DVF, INSEE, Notaries of France).