Grigno: what to know before buying a home
A municipality in the province of Trento, Trentino-Alto Adige/Südtirol. Official data on earthquakes, population, services and transport.
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Search for an address in Grigno
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 Vittorio Emanuele 1, Grigno.
Grigno, the lower Valsugana on the Brenta
At the eastern edge of Trentino, where the Valsugana runs down towards the Veneto, the Brenta river flows through the municipality of Grigno. The village and its hamlets sit on the valley floor and the lower slopes, hemmed in by mountains, along the Valsugana main road linking Trento with Bassano del Grappa. Borgo Valsugana is the main town for services and schools, and the Veneto plain is not far to the south.
Housing in the valley is mostly village houses, small blocks of flats and rural homes on the slopes. The location suits people working either in Trentino or around Bassano, but the valley floor is narrow, so weigh up how close the main road is, the noise and the sunlight, which in a deep valley can be short in winter.
The population picture is that of a valley municipality losing residents. Istat, Italy's statistics office, counts 2,023 residents in 2023, down 10.9% since 2011, with an average age of 48.9 against 45.4 in the province and 28.5% over 65. Foreign residents make up 5.4%. Declared incomes are below the Trentino average.
Two technical points before buying. The first is the land registry: Trentino uses the tavolare system, with ownership entered in the Land Book (Libro fondiario), and the Revenue Agency does not publish plot maps here, which the report states. The second is water: near the Brenta and its side streams the report reads the official flood maps for the address, and on the slopes the landslide maps.
Grigno is in seismic zone 3, with an expected ground acceleration of 0.134 g in the built-up area; in older houses, check the roof and the ties between walls and floors.
Key points
- Lower Valsugana on the Brenta, towards the Veneto.
- Population down 10.9% since 2011.
- Tavolare land registry: no Revenue Agency plot maps.
- Seismic zone 3, expected acceleration 0.134 g.
Overview
Grigno is a municipality in the province of Trento, in Trentino-Alto Adige/Südtirol. At the end of 2023 it had 2,023 residents, ranked 61 of 166 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Grigno is in seismic zone 3, a zone where strong earthquakes are possible but rare. Most municipalities in the province (147 of 166) are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.134 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 10.9%. The estimated average age is 49 years, higher than the province average (45). 28% of residents are over 65 (the regional figure is 22%). Foreign residents make up 5.4% of the population. On average, a household has 2.2 members.
Income and climate
In tax year 2024, taxpayers in Grigno declared an average taxable income of 23,880 euros, below the provincial average (25,718 euros). The Italian average is 24,895 euros.
Grigno is in climate zone E, with 2,801 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 263 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Grigno has 2 schools and 2 pharmacies.
The data shows no grocery shops and supermarkets within the municipality, against a provincial average of 0.8 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 3.6% of the land in Grigno, compared with 3.1% in the province and 2.9% in the region. In 2024 built-up land grew by 0.7 hectares.
Radon and contaminated sites
Grigno is not among the radon priority areas designated by the Provincia autonoma di Trento 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 one contaminated site, or site still under investigation, in Grigno, and one more has been cleaned up or closed. The report tells you whether one is close to the address.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Grigno: 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
For Grigno the Revenue Agency does not publish cadastral maps: the land registry here uses the tavolare (land book) system. The report cannot give a parcel reference, but it still checks risks, services and transport at the address and states this clearly.
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 Grigno. Half of the residents live in areas scoring 59 or more.
Residents by band
- modest 2.8%
- fair 97.2%
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), Provincia autonoma di Trento, 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 022095. The text on this page is generated automatically from the data.