Open House Festival

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Green London

Explore greener buildings, landscapes and spaces across London, from sustainable architecture and carbon-saving refurbishments to gardens, growing projects and urban green spaces.

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1 Halliwick Road

residence

A low energy refurbishment of an Edwardian house, with rear extension and loft conversion. Wood fibre insulation, MVHR, airtightness layer, triple glazing, timber structure and low embodied energy materials.

Architecture for London, 2020

Guided tour / Other

Barbican Conservatory

garden

Join us to explore the architectural history and future of the City of London's iconic glasshouse. Hear from the team behind Barbican Renewal, who will be restoring and revitalising the Conservatory from 2027-2030 with improvements to accessibility, sustainability and a new plant collection. Take part in a plant adoption event, leaving with a cutting from the Conservatory to grow at home.

Chamberlin, Powell and Bon, 1982

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Canal Club

community/cultural

The Canal Club, a 1978 modernist community centre designed by Julian Sofaer, is a modest, open-plan space. It features a community garden developed by the boating community moored alongside it.

Julian Sofaer, 1978

Early 18C Grade II listed building incorporating plunge bath with Delft tiles, orangery, saloon and pump chamber with part-restored water wheel. Hermitage and sham bridge in grounds.

Unknown, 1717

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Chelsea Physic Garden

garden

Part of the Chelsea Heritage Quarter, Chelsea Physic Garden was established in 1673, by the Worshipful Society of Apothecaries of London. This four-acre green space in the heart of Chelsea is London's oldest botanical garden and home to over 4,500 medicinal, edible and useful plants.

, 1673

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Company Drinks Pavilion and Garden

community/cultural

Company Drinks is a local drinks enterprise and community hub based in Barking Park. Our space includes a beautiful community garden and a former outdoor bowls pavilion that's now home to social areas, a community kitchen, and creative making spaces. Our Annual Community Open Day on 12th September is a fun, family-friendly free event with workshops, taster sessions and tours of the site.

Artist/Spatial Designer Sahra Hersi, 2021

Guided tour

Dalston Eastern Curve Garden

community/cultural, garden, public realm/landscape

A vital community garden offering a model for maximum good for communities and for the environment on a small urban plot. It is now recognised as a site of Local Importance for Nature Conservation. Winner of an Open City Stewardship Award 2021.

muf architecture/art, EXYZT, J & L Gibbons, 2010

Deptford Little Farm is a 3,500 sq foot plot with a Dutch style greenhouse growing organic produce and flowers for the Culpeper Family group of pubs. Focusses on permaculture, soil regeneration, organic produce and biodiversity.

Roberts & Treguer, 2022

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Hermitage Community Moorings

residence

A development of residential and recreational moorings for historic vessels on the Thames. The unique Pier House, built to a high specification, provides a floating community centre just downstream from Tower Bridge.

Anna Versteeg and Ollie Price , 2010

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Inner Temple Gardens

garden

Established by the Knights Templar in 1195, The Inner Temple has had a Gardener since 1307. Surviving The Great Fire of London, and the Blitz, the Gardens remain a secret and tranquil oasis. Today the Garden is managed for beauty and biodiversity, providing a haven for people and wildlife in the heart of the City.

Robert Marnock, 1870

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Lillington Gardens Estate

residence, walk/tour

Lillington Gardens in Pimlico, Westminster, was built from 1961 to 1971 by Darbourne & Darke. It set a new standard in high-density public housing with medium-rise structures and private gardens. Blending well with nearby Victorian surroundings, the modernist design won multiple awards and was praised by Nikolaus Pevsner as 'the most interesting recent housing in inner London'.

Darbourne and Darke, 1961

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Olden Community Garden

garden

Olden Community Garden - a hidden 2.5 acre green oasis along a railway embankment in Islington. Sit beside the lawn; listen to birdsong; follow trails through the woodland, meadow and orchard; discover vegetable patches and a wildlife pond.

Community Garden, 1986

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OmVed Gardens

gallery

Discover OmVed Gardens’ new buildings and landscape during London Open House  Festival. Piers Smerin’s Douglas‑fir frames and cedar cladding form pyramid silhouettes, with a kitchen crowned by a roof garden. Passive design, raised roofs and oasthouse‑style vents keep spaces airy. Paul Gazerwitz’s hillside paths weave woodland, meadow, veg plots, ponds and orchard into a green village.

, 2025

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Phoenix Gardens Community Building

community/cultural, garden

The first purpose-built new-build community centre to be built in the heart of Soho for generations, located within the renowned Phoenix Gardens. Winner: RIBA London Award. Designed by RIBA London Architect of the Year Winner.

Office Sian Architecture + Design, 2018

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Rufford Mews Apartment

housing

Home to RHS Chelsea Gold Medalists Mike McMahon and Jewlsy Mathews, this space showcases a decade of their handcrafted furniture and cabinetry. Their work, all made by their own hands, has received international acclaim featuring in BBC Gardeners' World (TV), The Modern House, The Observer, Dwell, Interior Design and IDEAT. Experience bespoke design in every meticulously crafted detail.

Mike McMahon Studio, 2022

Drop in / Guided tour

Sands End Arts & Community Centre

community/cultural

Amongst the RIBA Stirling Prize shortlist 2022 sits Mæ Architect's Sands End Arts & Community Centre in Fulham. The centre consists of a single-storey building comprising bright, airy and flexible event spaces and a community café.

Mae Architects, 2020

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Sitopia Farm

garden

Sitopia Farm is a 2-acre organic and regenerative farm in the London Borough of Greenwich. We are on a mission to improve our food system. We grow vegetables and flowers and sell direct to our local community, to chefs, and to florists. Through our farming and events, courses and community volunteering, we reconnect people to the soil, the joy of good food and flowers, and to each other.

, 2021

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Southwark Integrated Waste Management Facility

industrial, infrastructure/engineering

Ever WONDERED what happens to your recycling? Southwark's FREE fun-filled, family-friendly Wonder Day is back on Saturday 12 September 2026, 10am - 4pm. Come along to our annual Wonder Day, to see our Integrated Waste Management Facility (IWMF) sort recycling using the latest innovations and meet some of the amazing experts that work behind the scenes.

Thorpe Wheatley, 2012

Guided tour

St Bernards estate and houses, Croydon

residence, housing

21 houses, in 4 terraces, built by Swiss architects Atelier 5 for Wates within the wider Park Hill Estate, Croydon. Living areas on the upper floor are approached through a garden court. Bedrooms downstairs open onto a lower garden. The houses are accessed via walkways and sit within mature communal gardens providing private and open living. Pevsner wrote, 'a group with few equals in Britain'.

Atelier 5, 1970

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St. Joseph's Church & Quiet Garden

religious, garden

A lower-ground level church space, originally a school chapel. Stained glass windows (1820's) are from the original St. Mary Moorfields Church, near Finsbury Circus, demolished to make way for Underground Metropolitan Line. Two icons in contemporary Ethiopian style depict Mary, Mother of the City and St. Joseph. The Quiet Garden is an award-winning space in the City of London.

George Sherrin, 1850

Walking tour

The Barbican & The City Gardens

public realm/landscape, walk/tour

The Barbican is a residential complex of around 2,000 flats, maisonettes, and houses in the City of London. Built on the site destroyed by The Blitz during the World War II, The Barbican Estate is a fascinating development and an icon of Brutalist architecture. Architects were Chamberlain, Powell and Bon. You will find an oasis in the middle of buildings, with gardens and water features.

Chamberlain Powell and Bon, 1970

Drop in / Guided tour

Wolves Lane Horticultural Centre

community/cultural

Ever explored an eco-building? Wolves Lane Horticulture centre is home to a thriving 3.5 acre contemporary community food growing space alongside 1970s glasshouses. Visit the cactus and palm house with koi carp alongside a “bale” of terrapins and exotic flora and fauna. The café serves healthy, locally grown produce and the shop will furnish you with plants to take home.

Material Cultures + Studio Gill, 2024