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San Costanzo: what to know before buying a home

A municipality in the province of Pesaro e Urbino, Marche. Official data on earthquakes, population, services and transport.

Liveability index free for any address

Search for an address in San Costanzo

The report looks at the exact point: landslide and flood risk, seismic zone, price per square metre for the area, services and nearby stops.

For example: Strada San Costanzo 1, San Costanzo.

San Costanzo, a hill town above the coast between Fano and Senigallia

From the walls of San Costanzo you can see the sea. The town sits on a hill a few kilometres from the Adriatic coast, on the stretch between Fano and Senigallia, above Marotta and Mondolfo. Besides the main village, the municipality takes in hill hamlets such as Cerasa and Stacciola, surrounded by fields of wheat and sunflowers and olive groves.

For buyers it is a halfway house between the coast and the interior. The beaches and the A14 motorway are a quarter of an hour away, Fano and Senigallia provide a hospital, secondary schools and jobs, and prices in the village stay lower than by the sea. The market offers houses in the old centre, newer detached homes and farmhouses in the countryside, some already renovated as second homes.

In 2023 there were 4,573 residents, down 5.5% since 2011. The average age is 46.0, just below the province of Pesaro and Urbino (46.9), over-65s make up 23.7% and foreign residents 6.2%. Households average 2.34 people.

All 50 municipalities in the province are in seismic zone 2 of the Civil Protection classification. In San Costanzo the expected ground acceleration in the built-up area is about 0.184 g, a medium to high value for the Adriatic coast. In the brick houses of the centre and in farmhouses, ask whether any work has been done on walls, floors and roof. The hills in this part of the Marche are clay and in several places prone to slow landslides, which show up as cracks and leaning walls. The report checks the official maps for the address.

Key points

  • Hill town with sea views between Fano and Senigallia, above Marotta.
  • 4,573 residents, down 5.5% since 2011.
  • Seismic zone 2, expected acceleration about 0.184 g.
  • Clay hills: slow landslides worth checking.

Overview

San Costanzo is a municipality in the province of Pesaro e Urbino, in Marche. At the end of 2023 it had 4,573 residents, ranked 19 of 50 municipalities in the province.

Earthquakes

For Italy's Civil Protection Department, San Costanzo is in seismic zone 2, a zone where strong earthquakes are possible. All 50 municipalities in the province are in the same zone.

In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.184 g, a medium-high value: the level with a 10% probability of being exceeded in 50 years, on rock.

For anyone buying in San Costanzo, the building matters a great deal: ask for the design year, whether it met the 2008 seismic standards, and whether any seismic retrofit has been carried out.

Population

Compared with the 2011 census, the resident population has fallen by 5.5%. The estimated average age is 46 years, in line with the province. 24% of residents are over 65 (the regional figure is 26%). Foreign residents make up 6.2% of the population. On average, a household has 2.3 members.

Income and climate

In tax year 2024, taxpayers in San Costanzo declared an average taxable income of 22,195 euros, below the provincial average (23,718 euros). The Italian average is 24,895 euros.

San Costanzo is in climate zone E, with 2,193 heating degree days: heating may be switched on from 15 October to 15 April, for up to 14 hours a day. The same table puts the town hall at 150 metres above sea level.

Services

In the official Ministry of Education and Ministry of Health lists, San Costanzo has 4 schools and 2 pharmacies. The Overture Maps data also lists 1 grocery shop and 1 sports facility.

The data shows no healthcare facilities within the municipality, against a provincial average of 0.6 per 1,000 residents.

Public transport

We do not yet have open public transport timetables for this municipality: the report says so explicitly, without inventing distances.

How built-up it is

Buildings, roads, car parks and other sealed surfaces cover 6.8% of the land in San Costanzo, compared with 6.8% in the province and 7.0% in the region. In 2024 built-up land grew by 1.1 hectares.

Radon and contaminated sites

According to the ISPRA map, the estimated radon emission in the municipality is low. Radon varies from building to building and can only be known by measuring it, especially on ground floors and in basements.

Official databases list no contaminated sites in San Costanzo.

Landslides and flooding

Landslide and flood hazard changes from one street to the next even within San Costanzo: the report checks the address against the ISPRA maps.

House prices

The Revenue Agency's price ranges per square metre (OMI) apply to zones, not to whole municipalities: the report gives the range for the address's zone.

Land registry

The cadastral maps for San Costanzo are public: from the address the report finds the sheet and parcel number.

Liveability area by area

The Vicinalia liveability index runs from 0 to 100 and looks at the place, not the people who live there: services within walking distance, transport, green space, natural hazards, air, quiet, buildings and connection. Here it is worked out at the centre of each of the 32 inhabited census areas in San Costanzo. Half of the residents live in areas scoring 54 or more.

Residents by band

  • modest 25.1%
  • fair 74.9%

Vicinalia index by census area, licence CC BY-SA 4.0. Data: IdroGEO ISPRA (2026), Istat, INGV, EEA, AGCOM, Overture Maps and OpenStreetMap.

The colour is the value at the centre of the area. For an exact address, search for it above: the free check looks at that exact point. How the index is worked out

Data sources

ISTAT code 041051. The text on this page is generated automatically from the data.