The Howard de Walden Estate

Howard de Walden manages a portfolio of over 800 property interests, in a 95-acre area of Marylebone, London, spanning healthcare, residential, office, retail & leisure, and education sectors. 

Howard de Walden’s purpose is to create the environment for Marylebone Village to flourish. Howard de Walden strives to enhance the community through its responsible stewardship, excellent service and unique offering, so Marylebone remains a coveted place for generations to come. 

The business is based around the management of a large portfolio of rental properties, but activities extend far beyond those of most landlords. 

With roots in Marylebone that extend back several centuries, Howard de Walden is thoroughly invested in the progress of the entire area - its success is a reflection of the success of the community it serves.

Key Facts:

  • Committed to be Net Zero Carbon by 2040
  • Science Based Targets to reduce scope 1 and 2 emissions by 50% by 2030 and by more than 95% across our scope 3 emissions by 2040
  • Awarded Planet Mark status for reductions in Head Office carbon emissions (2022 and 2023)
  • Proud signatories of Westminster’s Sustainable City Charter 2040
  • Social investment focused locally in Westminster encompassing fundraising, awareness raising, volunteering and financial contributions


  • Access Howard de Walden’s 2023 Annual Report here
  • Access Howard de Walden’s Sustainability Strategy, deCarbon, here

“Howard de Walden is a company firmly rooted in science and guided by a deep trust in its principles. We understand the pressing need to curtail carbon emissions and combat the advancing impact of climate change. As a testament to our commitment, we have set a science-based target and made "Achieving Net Zero Carbon" a core element of our strategic business objectives. 

As a landlord in one of London's most coveted neighbourhoods, Howard de Walden aspires to lead change and foster collaboration within our local community, encompassing businesses, residents, and our supply chain partners. Given the urgency and context surrounding climate change, our collective commitment to adopting innovative approaches is nothing short of imperative.

This is why becoming a member of the BBP is so important – we know there is a shared endeavour to learn, improve, and to act with the support of the real estate industry.”

Simon Tranter, Head of Sustainability, Howard de Walden Estate.

*Please note that the information on this page was supplied by the BBP Member and the BBP assumes no responsibility or liability for any errors or omissions in the content