<|start_header_id|>assistant<|end_header_id|> Here is a summary of the property description in a single paragraph without a list: A rare opportunity to design and build a custom home in the exclusive Callum Park development is available. The serviced plot, which includes planning permission, utilities, and foundations, comes with estimated build costs for a five-bedroom home with a double garage. Buyers can customize their home to fit their lifestyle, preferences, and budget, with expert guidance from AC Architects and Structures. The property is located in the picturesque village of Lower Halstow, with easy access to the M2 motorway and Rainham Train Station, offering high-speed services to London Victoria. The surrounding area offers beautiful countryside, quaint towns, and scenic walks, making it an ideal location for families and commuters. With the option to reserve before January 31st, 2025, buyers can also benefit from zero stamp duty.