Historic Houses' members visit free. Interested in joining? Find out more.


The London home of the Duke of Northumberland, whose family were granted the former monastic site at the end of the 16th-century.

The Tudor mansion was remodelled by Robert Adam for the 1st Duke in 1760's and the interiors are an architectural tour de force - the great hall may be Adam's finest classical work.

Syon has 30-acre gardens within a 200-acre park transformed by 'Capability' Brown and a stunning domed conservatory designed by Charles Fowler in the 1820s.

Today’s opening hours

The Gardens are open daily from the 11th March to the 27th October 10:30 am to 5:00 pm.



The House will be open Wednesdays, Thursdays, Sundays and Bank Holidays from the 13th March to the 27th October 11:00 am to 5:00 pm, last admission 4:00 pm.

The Gardens will be open daily from the 11th March to the 27th October 10:30 am to 5:00 pm.

Find Us
Find us

Between Brentford & Twickenham, off A4, A310.

By Rail:
From Waterloo to Kew Bridge then bus or London Overground to Gunnersbury then bus. Syon House is a walk of about 1 mile from Brentford or Syon Lane Stations.

By Underground:
District Line to Gunnersbury, 237 or 267 bus to Brentlea Gate bus stop. Pedestrian entrance 50 yards.
Central Line to Ealing Broadway, E2 bus to Brentford Holiday Inn or E8 bus to Brentlea Gate bus stop. Pedestrian entrance 150 yards.
Piccadilly Line to Boston Manor, E8 bus to Brentlea Gate bus stop.  Pedestrian entrance 50 yards.

  • Offers bike storage

Car park on site

  • Free


Historic Houses members visit for free.

House, Gardens and Great Conservatory
Adult £13, Concession £11.50, Child £6, Family £30

Gardens and Great Conservatory 
Adult £8, Concession £6.50, Child £4.50, Family £18

More admission details

  • Accessible toilets
  • Guide dogs welcome
Group Visits
Group Visits

Booking in advance is essential for groups wishing to visit Syon House.

The house is open to the public on Wednesdays, Thursdays, Sundays and Bank holidays.

A "special opening" of Syon house can sometimes be arranged when the house is closed to the general public.

Special prices are available for groups of more than 25 and include a free guided tour. 

Find out more.


Syon is justly proud of it reputation for hosting wonderful celebrations. The main season runs from April to mid-October for beautiful ceremonies, parties and receptions. During the winter months (November to March), it is possible to host a ceremony with us, but not a reception. 


Have your ceremony in the Great Hall with up to 120 guests, the State Dining Room  for up to 50 guests - or Private Dining Room with 24 guests.

You can also choose the Great Conservatory for a twilight evening ceremony for up to 120 people.


Most spring and summer receptions take place in the Great Conservatory. Adorned with palm, exotic flowers and trees, this stunning building can host  160 seated guests, or up to 200 for a standing buffet.

Larger parties of up to 600 seated guests (or 800 for a standing affair), can be hosted in  the Garden Room Marquee. This is a discreet bespoke party structure set in a private walled Garden to one side of Syon House.


Corporate Hire

Corporate events

If you long to find a piece of traditional “old world” along with tranquil quintessential “Englishness” (grand stately home, the river Thames, trees, rolling green meadows, herd of cows) and you do not want to leave London, then look no further than Syon Park.

Syon Park is an idyllic setting for many types of hospitality.

According to the type of function, numbers or guests, time of day and year, and ambience you wish to create, you can make a choice of venue from rooms inside the Duke’s residence, the Great Conservatory and Gardens or the Parkland.

The experienced hospitality team are happy to advise and guide you – and put together quotations bespoke to your event and requirements!

School Visits