What is Open House London?

Open House London is an annual festival celebrating the architecture and urban landscape of London. This year, the festival will take place from 4 – 12 September with a wide range of events and tours taking place across all 33 London boroughs. All the festival events are free.

This is your perfect opportunity to get to know London and the local Hounslow area!

With 365,000 visits in a single weekend, the Open House Festival is the largest celebration of urban landscape in the world. 2021 marks the 30th year of this extraordinary event. Staged by the charity Open City with the aim of making London a more accessible, equitable, and open city for all. For the full details, visit the Open House website.

What will the Festival offer this year?

Festival Themes

Local London will explore community buildings, libraries, local arts, pubs, and community public realm, giving Londoners an opportunity to show their pride in the areas and institutions that have influenced their communities.

Global London will explore global architects, global arts, and culture as well as globally influencing urban design, allowing an opportunity to put London into the wider cultural landscape of global cities and design.

Architecture and Wellbeing will promote mental health and wellbeing with visits to mindful architecture and quiet tours exploring off the beaten track and undiscovered areas. Organisers will be taking advantage of experimental event formats to engage with the city in new ways.

How is Hounslow getting involved?

The London Borough of Hounslow is a vibrant, exciting place to visit, stay, and explore for local residents and visitors. We have historical houses, a growing arts scene, miles of rivers, canals, nature reserves, bustling town centres, a fantastic leisure offering, and much more. 

With over 20 events taking place in Hounslow alone, Open House is your opportunity to engage and explore!

What Open House events are happening in Hounslow?


Where and When?

Dreamings Collage Art Exhibition

Running daily until Friday 10th September 12pm to 11pm

Location: The Brook Pub, 38 New Rd, Brentford TW8 0NU, TW8 0NU

A collage art exhibition. Every day except Monday and Tuesday. A talk “Why Collage?” on Sunday evening at 7, followed by a Q&A and an art raffle for charity


Explore Feltham Green

​​Saturday 11th September

Walk 1: 11:30pm-1:00pm

Walk 2: 2:00pm-3:30pm

Meet at: Feltham Pond

Location: Feltham Green, High Street, Feltham, TW13 4AF

Friends of Feltham Green is hosting an ‘Open House/Open City’ event at Feltham Green, which will include 2 walks about the history of Feltham Pond’s and Freddie Mercury connections to Feltham.   

During the walk, you will visit…

Feltham Pond History and Freddie Mercury Memorial 

Bridge House Pond/World Zoroastrian Organisation History and ‘Freddie Mercury Close’

Clymping Dene Pond History and Freddie Mercury / Brian May House


Chiswick House and Gardens

​​Thursday 9th September 2021 from 10:00am to Sunday 12th September 2021 4:00pm

Location: The Estate Office, Chiswick House, W4 2QN

As part of Open House London Festival 2021, enjoy an exclusive visit to the Summer Parlour at Chiswick House and Gardens – which is not part of the current visitor route. 

Originally built as an addition to the old Jacobean house, the Summer Parlour was completely redesigned in 1735 by William Kent as a garden room for Lady Burlington. The room is probably the only interior designed in its entirety by Kent, with a ‘grotesque’ style ceiling a particular highlight.


Boston Manor House Virtual Tour

Saturday 11th September

Time: 9am to 5pm

We will be releasing a virtual tour of the site whilst it’s closed for restoration through our social media channels.

Explore behind-the-scenes of Boston Manor and its former residents with the Heritage Architects, Purcell. This online snapshot series will take you through some of the stories hidden within and behind the bricks, mortar, paint and plaster; celebrating the fascinating discoveries and expert re-telling of times bygone.


London Museum of Water & Steam

Saturday 11th & Sunday 12th September

Guided Tour

Time: 1pm to 3.30pm

Capacity: 20

Location: Green Dragon Lane, Brentford, TW8 0EN

The Museum is housed within in a unique collection of Grade I and II listed buildings. Even though they were purpose-built and purely functional buildings, the architect took great care to make the buildings aesthetically pleasing.

Guided Tour

Join one of our volunteer guides for a fascinating tour of the London Museum of Water & Steam. Discover the story of London’s water supply, the site of the former Kew Bridge Waterworks, and the pumping engines that helped to make London the great city it is today.


Exploring Spring Grove Isleworth

Saturday 11th September

Hounslow Heritage Guides

Time: 2.30pm to 4pm 

Capacity: 24

Meet at: Forecourt, Isleworth Railway Station

Location: Forecourt, Isleworth Railway Station, London Road, Isleworth, TW7 4BX

Centred on Spring Grove House, once Sir Joseph Banks home the 1850s vision was for John Taylor Junior designed grand villas. Today’s wider architecture includes a former college by John Norton & P Massey plus quirky arts & crafts properties.

Largely rural until the early 20th century grand villas were developed during the 1860s by the 1930s it had largely taken on its present form


Kempton Steam Museum

Saturday 11th September

Open day

Time: 10.30am to 4pm

 Capacity: 100

Access is via a set of steps. Disabled access into the engine house is currently unavailable.

Location: Kempton Park Pumping Station, Snakey Lane, TW13 7ND

Kempton Steam Museum is home to the world’s largest working triple-expansion steam engine. It stands as high as four stacked double-decker buses and along with its identical twin, pumped vast volumes of London’s drinking water from 1929 to 1980.

The museum and its engines are housed within a grand Scheduled Monument engine house located at the Thames Water’s Kempton Park Pumping Station in south-west London. The mighty steam engines have been preserved since 1995 by the Kempton Great Engines Trust to ensure that their engineering magnificence is treasured for generations to come.


Studio Flox

Saturday 11th September

Studio Flox Open Days

Time: 10.30am to 2.30pm

Monday 6th to Friday 10th September

Studio Flox Open Days

Time: 9am to 5pm

Location: Watermans Park, 40A, High Street, Brentford, TW8 0BB

Studio Flox at Watermans Art Centre is a combined arts centre. It is located in Brentford, England alongside the banks of the River Thames overlooking Kew Gardens in West London, England.


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