This property in Tzithra village, located on the volcanic caldera of Vatousa in Lesvos, presents a unique opportunity for eco-tourism or residential development. Below is a concise summary and analysis of its potential:

### Property Overview
- **Location**: Tzithra, a 16th-century stone village on Lesvos, Greece, known for its picturesque setting along the Voulgaris river and unique microclimate due to surrounding high mountains and vineyards.
- **Property Details**:
  - Size: 47 sq.m old stone house on a 360 sq.m plot within the residential area.
  - Additional building allowance: Up to 240 sq.m for residential use; potentially more for accommodation projects.
  - Potential: The existing stone can be reused for renovation, and the property can be transformed into a stunning home or eco-tourism cottages.
- **Environment**: Peaceful, with natural beauty, wildflowers, and a serene ambiance, ideal for relaxation or tourism ventures.

### Investment Potential
- **Eco-Tourism Opportunity**:
  - The area lacks accommodations like Airbnbs or hotels, creating a gap in the market.
  - EU subsidies of up to 70% are available for building eco-tourism accommodations, such as cottages.
  - The property’s location and additional building allowance make it suitable for a profitable business, capitalizing on the growing demand for sustainable tourism.
- **Unique Selling Points**:
  - Proximity to attractions: 8-minute drive to Gavatha’s sandy beach (4 km, bike-accessible), 15-minute drive to the world’s largest petrified forest (25 million years old), and Sigri’s new harbor and museum.
  - Cultural and historical appeal: Tzithra’s stone architecture, 16th-century Saint Nicholas church with a 1545 icon, and the multi-awarded Hidiriotiko wine produced on the caldera’s fertile soils.
  - Connectivity: New road linking Kalloni to Sigri and direct ferry connections from Athens to Sigri’s harbor enhance accessibility.
  - Nearby amenities: Antissa (5-minute drive) offers supermarkets, gas stations, ATMs, schools, and a health center. Skala Eresos (20-minute drive) provides a vibrant beachfront with bars and tavernas.

### Considerations
- **Renovation Needs**: The 47 sq.m stone house requires restoration, but the availability of on-site stone reduces costs.
- **Market Demand**: The lack of accommodations in the area suggests strong potential for eco-tourism ventures, especially with EU funding support.
- **Accessibility**: The property’s proximity to key attractions and infrastructure (Sigri harbor, new roads) makes it appealing for tourists and residents alike.