<|start_header_id|>assistant<|end_header_id|> Here is a summary of the property description in a single paragraph: The Greengull, Llwyn Onn development offers three superior detached properties, each built to PassivHaus standards for energy efficiency and sustainability. The homes are designed to harmonize with their surroundings in the Trefin Conservation Area, with triple-glazed windows for quiet living spaces and southern-facing terraces for expansive countryside views. Each property features an open-plan living area with a modern kitchen, dining area, and sitting room, as well as a luxurious master bedroom with an ensuite and stunning views. The lower ground floor offers versatile living options, including potential annexe space, and the homes are surrounded by beautifully landscaped gardens and ample parking. With an EPC rating of A, these eco-conscious homes offer a rare opportunity to own a new property within the Pembrokeshire National Park, with easy access to nearby towns and idyllic beaches.