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Claremont Square: A Historic Garden Square and Reservoir in London

A serene historic garden square in Islington, London, perched atop a Victorian reservoir with rich heritage and literary connections.

Claremont Square is a charming garden square located in London’s Islington district, notable for its historic reservoir and ties to the New River water supply system. Established in the 18th century, the square sits atop the former Upper Pond of the New River Head, featuring a grass-covered mound and Grade II listed railings. Surrounded by elegant residential terraces, it offers a tranquil green space with rich historical significance and a subtle literary connection to the Harry Potter series.

A brief summary to Claremont Square

  • London, GB
  • Duration: 0.5 to 2 hours
  • Free
  • Environment icon Outdoor
  • Mobile reception: 4 out of 5

Local tips

  • Visit during spring or early autumn for pleasant weather and vibrant greenery.
  • Bring a camera to capture the charming Georgian terraces and the unique grass-covered reservoir mound.
  • Explore nearby streets if you’re a Harry Potter fan, as the area inspired the fictional Grimmauld Place.
  • Enjoy a peaceful picnic on the lawns, but be mindful of local conservation efforts.
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Getting There

  • London Underground

    Take the Northern Line to Angel Station, approximately a 10-15 minute walk to Claremont Square. The route is mostly flat but may involve navigating some busy streets. No additional fare beyond standard London Underground pricing applies.

  • Bus

    Bus routes 43 and 153 stop within a 5-minute walk of Claremont Square. Buses run frequently throughout the day, with travel times from central London around 20-30 minutes. Contactless payment or Oyster card is accepted.

  • Taxi or Rideshare

    A taxi or rideshare from central London to Claremont Square typically takes 15-25 minutes depending on traffic. Fares usually range from £10 to £20. Drop-off points are available near the square, but parking is limited.

Claremont Square location weather suitability

  • Weather icon Any Weather
  • Weather icon Mild Temperatures
  • Weather icon Rain / Wet Weather
  • Weather icon Clear Skies

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Discover more about Claremont Square

Origins Rooted in London's Water Heritage

Claremont Square occupies a unique place in London's history as part of the New River Head complex, which was integral to the city's water supply system. The square was built over what was originally the Upper Pond, constructed in 1708 to hold water brought from Hertfordshire's Amwell Springs via the man-made New River. This reservoir was later reconstructed in the 1850s and raised above street level, now covered by a grassy mound that conceals the water beneath. The surrounding railings, dating from the 1820s and modified in the 1850s, are Grade II listed and contribute to the square's historic character.

Architectural and Urban Context

The square is framed by elegant Georgian and Victorian terraces, reflecting the architectural styles prevalent during its development. Named after the Claremont Chapel (opened in 1819 and now the Crafts Council), the area blends residential charm with its industrial heritage. The reservoir and its associated structures, including remnants of the New River system, create a distinctive urban landscape where nature and history intertwine.

Natural and Cultural Significance

Claremont Square Reservoir is designated as a Site of Importance for Nature Conservation, highlighting its value as a green oasis within the dense city fabric. The square provides a peaceful retreat for locals and visitors alike, with mature trees and well-kept lawns offering space for relaxation and informal recreation. Beyond its environmental role, the square holds cultural interest, with nearby streets famously used as Grimmauld Place in the Harry Potter series, adding a layer of literary allure.

Community and Conservation Efforts

Over the years, Claremont Square has benefited from conservation policies aimed at preserving its historic and ecological features. Planning briefs and local initiatives have sought to maintain the heritage buildings and protect the reservoir site from inappropriate development. These efforts ensure that Claremont Square remains a cherished landmark that balances urban living with historical preservation.

Experiencing Claremont Square Today

Visitors to Claremont Square can enjoy a tranquil garden setting steeped in history, with the subtle presence of the reservoir beneath the grassy mound adding intrigue. The square’s quiet atmosphere contrasts with the bustling city nearby, making it an ideal spot for contemplation, photography, or simply enjoying a moment of calm. Its layered history, from 18th-century water engineering to modern-day conservation, invites exploration and reflection.

Connections to Broader London History

Claremont Square is part of a network of historic garden squares across London, each with its own story and character. Its link to the New River Head connects it to the broader narrative of London's development and public health improvements, including responses to cholera epidemics in the 19th century. This context enriches the visitor experience, situating the square within the evolving story of the capital’s infrastructure and urban growth.

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