Syon Park is the London home of the Duke of Northumberland, held by the Percy family since 1594. It stands in Brentford behind its own parkland, opposite Kew Gardens on the Thames, and weddings are held across two Grade I listed settings: Syon House, with interiors by Robert Adam, and the Great Conservatory, a cast-iron and Bath stone glasshouse raised around 1827. Around them lie 200 acres of parkland laid out by Capability Brown.
Ceremonies take place in the Great Hall, which holds up to 154, or in the State Dining Room, which holds up to 50. Evening receptions move to the Great Conservatory, where 160 guests can sit or 200 can stand, from April to September. Drinks are served in the Inner Courtyard and dancing takes place in the Colonnade, while the Long Gallery is kept for photographs. Catering is handled by the estate's approved suppliers, and the Hotspur Wing offers private rooms within the house. Heathrow and central London are each about twenty minutes away.