## 5 Local Scale Analysis
### Results  
The first site analyzed was the Walser village of Alpenzu Grande (Figure 12), located in Gressoney St-Jean, sits on a natural balcony offering views from the Monte Rosa massif to the entire valley. The village has a rich history, with evidence dating back to 1200. It showcases the distinctive Walser architecture, introduced by Germanic settlers in the 13 th century, including the traditional \"stadel\" buildings on mushroom-shaped columns. Alpenzu Grande is situated on a southeast facing plateau within a protected zone of the Piano Territoriale Paesistico (PTP), the steep slope and its location in a deep-seated gravitational slope deformation area contribute to a high vulnerability to landslides. Additionally, the cultural value and age of the buildings increase their susceptibility to damage. The second area analyzed was the one of Noversch (Figure 12). It is a small agglomeration within the municipality of Gressoney-Saint-Jean, located approximately 2 km away from it. Situated in the lowest part of the valley where the river Lys flows as a torrent, Noversch comprises 14 buildings: 10 residential, 2 for agricultural and productive use, and 2 unused. Of the residential buildings, four were constructed with load-bearing stone walls, while the remaining six are primarily wooden, making them more vulnerable. Notably, eight of these buildings were built before 1919, including several Walser \"stadel\" houses built by the [PERSON] family, which are considered \"structurally exemplary.\" The village is split by the stream, connected by a stone bridge with a round arch built in 1540. The historical buildings on the orographic left are particularly vulnerable due to poor accessibility in the event of a landslide. Noversch also suffered significant damage during the flood that devastated Valle d'Aosta in 2000. Gressoney-La-Trinite, situated at an altitude of 1627 m at the top of the valley crossed by the Lys stream, lies in a flat area beneath the Lyskamm glacier and the Monte Rosa massif (Figure 12). Renowned internationally as a mountaineering and winter sport destination, it is part of the Monterosa Ski area, boasting 150 km of slopes, making it one of the largest in Europe. The village features the parish church of the Holy Trinity, dating back to 1671, built on the foundations of a 15 th-century structure. The tourist-oriented area near the ski lifts is populated with modern hotels and residences, which are less vulnerable due to their construction and accessibility but have a high exposed value in terms of human lives and monetary worth. Despite its location in a moderate hazard area, resulting in a medium final risk value for most buildings, the presence of a deep-seated gravitational slope deformation area on the left orographic slope and a past landslide event nearby must be considered. The fourth analyzed area was Orsia (Figure 12). Orsia is a village in the municipality of Gressoney-La-Trinite, situated just over 1 km from the town centre at an altitude of nearly 1800 m. The village features houses scattered along the steep slopes of the Lys valley. While accessible by the main road, many houses on the slopes can only be reached on foot, increasing their vulnerability. The area contains a few recently built hotels, but it primarily comprises well-preserved Walser houses and old staddle. The damage estimate is high due to the average exposed value, as the buildings are mainly year-round residences or second homes, combined with their high vulnerability. The final risk estimate is significant, particularly because these houses are located in a high-risk area on a deep-seated gravitational slope deformation zone. The local-scale risk assessment results (Figures 13 and 14) indicate that despite some buildings being located in medium or moderate hazard areas, they exhibit high potential damage or total risk due to high vulnerability values.