Lillianes: what to know before buying a home
A municipality in the province of Valle d'Aosta/Vallée d'Aoste, Valle d'Aosta/Vallée d'Aoste. Official data on earthquakes, population, services and transport.
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Search for an address in Lillianes
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 Roma 1, Lillianes.
Lillianes, in the lower Lys valley
Lillianes sits in the lower part of the Lys valley, the side valley that climbs from Pont-Saint-Martin towards Gressoney. The village and its hamlets spread across the valley floor and the wooded slopes at around six hundred and fifty metres, with the main settlement close to the mountain stream. Work, secondary schools and bigger shops are down in the main Dora valley, where Pont-Saint-Martin has a railway station and a motorway junction.
Most homes are stone houses in the old hamlets, with a few newer buildings along the valley road. Before buying, check how the house is reached in winter, how steep the plot is and what condition the roof and walls are in. The municipality is in climate zone F, the coldest band in Italy's national scale, so heating is a major running cost.
According to Istat, the national statistics institute, there were 412 residents in 2023, down 11.4% on the 465 counted in 2011. The average age of 46.8 is close to the regional figure of 47.0, and over-65s make up 22.6%, against 25.3% across the Aosta Valley. Foreign nationals account for 6.6% of residents. Declared incomes are below the regional average.
Italy's Civil Protection Department places all 74 municipalities of the Aosta Valley in seismic zone 3, and the expected ground acceleration in the centre of Lillianes is about 0.050 g. In a stone house the real question is the state of the structure: timber floors, heavy roofs and load-bearing walls are worth having inspected before completion.
The Revenue Agency (Agenzia delle Entrate) publishes cadastral maps here, so the report links the address to its land parcel. Landslides and stream flooding are checked at the exact spot, using the official maps the report consults.
Key points
- Village in the lower Lys valley, above Pont-Saint-Martin.
- Residents down 11.4% since 2011, over-65s at 22.6%.
- Whole Aosta Valley in seismic zone 3; here about 0.050 g.
- Climate zone F: long winters, insulation and heating matter.
Overview
Lillianes is a municipality in the province of Valle d'Aosta/Vallée d'Aoste, in Valle d'Aosta/Vallée d'Aoste. At the end of 2023 it had 412 residents, ranked 53 of 74 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Lillianes is in seismic zone 3, a zone where strong earthquakes are possible but rare. All 74 municipalities in the province are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.050 g, a moderate value: the level with a 10% probability of being exceeded in 50 years, on rock.
Even in zone 3, seismic standards apply to new buildings: for an older building, ask about the design year and any structural work.
Population
Compared with the 2011 census, the resident population has fallen by 11.4%. The estimated average age is 47 years, in line with the province. 23% of residents are over 65 (the regional figure is 25%). Foreign residents make up 6.6% of the population. On average, a household has 1.9 members.
Income and climate
In tax year 2024, taxpayers in Lillianes declared an average taxable income of 22,244 euros, below the provincial average (26,152 euros). The Italian average is 24,895 euros.
Lillianes is in climate zone F, with 3,223 heating degree days, with no limits on when heating may be used. The same table puts the town hall at 655 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Lillianes has 1 school.
The data shows no pharmacies within the municipality, against a provincial average of 0.4 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 2.3% of the land in Lillianes, compared with 2.2% in the province and 2.2% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
Lillianes is not among the radon priority areas designated by the Regione Valle d'Aosta in 2026. 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 Lillianes.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Lillianes: 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 Lillianes 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 11 inhabited census areas in Lillianes. Half of the residents live in areas scoring 66 or more.
Residents by band
- fair 31.3%
- good 68.8%
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.
- Radon priority areas (Legislative Decree 101/2020), Regione Valle d'Aosta, national list compiled by ARPA Lombardia. Licence Atto pubblico (art. 5 L. 633/1941), 2026.
- 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 007042. The text on this page is generated automatically from the data.