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8 bedroom detached house for sale

21 The Bishops Ave
Detached house
8 beds
7 baths
EPC rating: C
Added > 14 days

Key information

TenureFreehold
Council taxBand TBC
BroadbandSuper-fast 75Mbps *
Mobile signal
EEO2ThreeVodafone

Features and description

  • Tenure: Freehold
  • Gym
  • Staff Quarters
  • Development Opportunity
  • Planning Permission
  • Underground Parking
  • Heated swimming pool and sauna
  • Cinema Room


A rare development opportunity on the prestigious Bishops Avenue. Owned since 1971, Avenue House is now poised for a transformative journey with approved planning permission to replace the existing residence with a grand mansion of approximately 15,000 square feet. Notably, this permission comes with the flexibility of no deadline to commence construction. This represents an extraordinary chance to own a piece of one of London's most prestigious locations, set on a 1/3 acre plot along The Bishops Avenue—also known as 'Billionaire’s Row'. This avenue is renowned for its grandiose homes and proximity to Central London, marking it as a highly sought-after address.



Development Insights


Professional builders estimate the construction of this super mansion on the plot at about £300 per square foot. With planning permission for nearly 15,000 square feet of space, the potential for this property is immense. Our projections suggest that once constructed, the mansion could be valued at a minimum of £1300 per square foot, underscoring the significant investment opportunity at hand.



Executive Summary


• The Bishops Avenue Hampstead, London, United Kingdom


• Widely recognised as the ‘Billionaire's Row'


• One of the most desirable addresses in prime London and celebrated throughout the world for its grand houses and its past & present, infamous & celebrity owners


• New Build Super Mansion Circa 15,000 sq. ft by Messers Charlton Brown Architects has been designed for the location


• 1/3rd Acre Plot


• Planning Consent GRANTED


• ‘Technical Start’ has been recognised by Barnet London Borough Council meaning the normal time limit, to commence construction, is now lifted


• The New building creates: 8 Bedrooms, 7 Bathrooms, 5 Receptions, an Indoor Swimming Pool, a Gym, a Cinema, a Sauna, Staff accommodation, and Underground parking


• A ‘Buyer Information Pack’ can be made available for this property. Please request more information before submitting any offer.


• Should any offer be successful on this property the offer will be subject to a 'Reservation Agreement' with the seller.


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About this agent

Nest Seekers International - London
Nest Seekers International - London
23 Berkeley Square London W1J 6HE
020 8022 1396
Full profileProperty listings
Nest Seekers International is a global real estate brokerage at the nexus of technology and media. Founded in 2002 by industry visionary and current president and CEO, Eddie Shapiro, Nest Seekers evolved at the forefront of the digital media revolution, reaching a new generation of clients and gaining international exposure through groundbreaking media partnerships, revolutionizing the industry and fuelling Nest Seekers’ rapid growth. Over the past two decades, Nest Seekers has continuously expanded and has become a household name across multiple key metropolitan and luxury destinations. Today, with well over $100B in transactions and representations globally, Nest Seekers has 50 offices and 2,000 agents and employees across North America, the United Kingdom, Canada, the EU, Southeast Asia and the UAE. Since 2017, Nest Seekers has been at the forefront of the UK real estate market, representing buyers, sellers, landlords, and tenants. We offer a powerful brand, cutting-edge technology, and an international platform to list your home to a global network.
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