<|start_header_id|>assistant<|end_header_id|> Here's a summary of the property description in a single paragraph: The Maud Foster Windmill and Mill House, a historic landmark in Boston, is a rare opportunity to own a piece of history. The windmill, a seven-story, five-sail structure built in 1819, is fully operational and still grinds flour, with a thriving shop and flour business open to the public on certain days. The property has significant potential for expansion and has previously housed a café. The loft-style penthouse, with three bedrooms, offers stunning views and a unique living experience. The adjacent Mill House, with five bedrooms and two bathrooms, boasts traditional elegance and is surrounded by beautifully landscaped gardens. The property also features two workshops, a garden, and ample parking. This exceptional property is available for viewing by appointment only.