Casteldaccia: what to know before buying a home
A municipality in the province of Palermo, Sicilia. Official data on earthquakes, population, services and transport.
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Search for an address in Casteldaccia
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: Via Allo' 1, Casteldaccia.
Casteldaccia, the coast between Bagheria and Altavilla Milicia
East of Palermo, beyond Bagheria, the Tyrrhenian coast opens into a narrow plain between the sea and the hills, and Casteldaccia covers this stretch as far as Altavilla Milicia. The town itself is set back a little inland, while towards the sea there are summer settlements of low houses and small villas used mostly in the warmer months. The railway and the motorway linking Palermo with Messina and Catania both run along the coast.
The market has two sides. In the town, people buy homes to live in all year, often families working in Palermo or Bagheria. On the coast, most properties are second homes belonging to people from Palermo, some put up quickly between the 1970s and the 1990s. On this stretch of coast, as in other parts of the Palermo area, quite a few houses were built without permits and later regularised under an amnesty (condono), or never were. Before completing, a thorough check of building and planning compliance is essential.
Istat, the national statistics office, recorded 11,690 residents in 2023, 806 more than in 2011, growth of 7.4%. The population is young by current Sicilian standards: estimated average age 43.2, with over-65s at 20.3% against 22.8% in the province. Foreign residents are only 1.1%. Declared incomes are below the provincial average. The climate is mild, with short winters.
Almost the whole province of Palermo is in seismic zone 2 of the Civil Protection Department's scale, and Casteldaccia is one of these 81 municipalities, with expected ground acceleration of about 0.179 g. A seaside house built without a structural design carries a double risk, so have a surveyor assess the structure before you sign.
The Revenue Agency (Agenzia delle Entrate) publishes the cadastral maps, and the report finds the plot from the address. Water is the most sensitive issue. In November 2018 a flood on the river Milicia claimed lives in a house built close to the riverbed, and the streams coming down from the hills can swell sharply within hours. The report checks flood and landslide hazard for the individual address.
Key points
- Town set inland, summer settlements on the coast towards Altavilla.
- Population up 7.4% since 2011.
- Seismic zone 2, expected acceleration about 0.179 g.
- Near the Milicia and other streams, flood hazard to check.
Overview
Casteldaccia is a municipality in the province of Palermo, in Sicilia. At the end of 2023 it had 11,690 residents, ranked 13 of 82 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Casteldaccia is in seismic zone 2, a zone where strong earthquakes are possible. Most municipalities in the province (81 of 82) are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.179 g, a medium-high value: the level with a 10% probability of being exceeded in 50 years, on rock.
For anyone buying in Casteldaccia, 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 grown by 7.4%. The estimated average age is 43 years, lower than the province average (45). 20% of residents are over 65 (the regional figure is 23%). Foreign residents make up 1.1% of the population. On average, a household has 2.4 members.
Income and climate
In tax year 2024, taxpayers in Casteldaccia declared an average taxable income of 19,463 euros, below the provincial average (21,337 euros). The Italian average is 24,895 euros.
Casteldaccia is in climate zone B, with 879 heating degree days: heating may be switched on from 1 December to 31 March, for up to 8 hours a day. The same table puts the town hall at 79 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Casteldaccia has 7 schools and 3 pharmacies. The Overture Maps data also lists 6 grocery shops and supermarkets, 4 healthcare facilities, 15 sports facilities and 1 green area.
There are 0.3 healthcare facilities per 1,000 residents, fewer than the province average (0.7).
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 8.4% of the land in Casteldaccia, compared with 5.7% in the province and 6.6% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
According to the ISPRA map, the estimated radon emission in the municipality is medium. 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 open contaminated sites in Casteldaccia; one has been cleaned up or closed.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Casteldaccia: 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 Casteldaccia 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 45 inhabited census areas in Casteldaccia. Half of the residents live in areas scoring 77 or more.
Residents by band
- modest 0.3%
- fair 16.9%
- good 41.4%
- very good 41.5%
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
- Seismic classification of municipalities, Dipartimento della Protezione Civile. Licence CC BY 4.0, updated to 2025-05.
- MPS04 seismic hazard model, INGV. Licence CC BY 4.0, 2004 model.
- Data by census section, Istat. Licence CC BY 4.0, residents at the end of 2023, compared with the 2011 census.
- Places, Overture Maps Foundation. Licence CDLA Permissive 2.0 and others depending on provider, release 2026-10-21.0.
- Income and main IRPEF variables by municipality, MEF, Dipartimento delle Finanze. Licence CC BY 3.0 IT, tax year 2024.
- Climate zones and heating degree days of municipalities (Presidential Decree 412/1993, Annex A), Normattiva. Licence CC BY 4.0, current text.
- Land take, territorial dynamics and ecosystem services, ISPRA e SNPA. Licence CC BY 4.0, 2024 data.
- Predictive radon map by municipality, ISPRA. Licence CC BY 4.0, version 2022-11.
- Contaminated sites, ISPRA, MOSAICO - Banca dati nazionale dei siti oggetto di procedimento di bonifica. Licence CC BY 4.0, updated to 12 November 2026.
- Liveability index by census area, Vicinalia, from the data in the report sections. Licence CC BY-SA 4.0, worked out on 30 September 2026.
- List of Italian municipalities, Istat. Licence CC BY 4.0, updated to 21 February 2026.
ISTAT code 082023. The text on this page is generated automatically from the data.