Lead and champion the Sustainable Conservation of Letchworth’s architectural heritage.
Letchworth Garden City is one of a handful of estates that fall under Section 19 of the Leasehold Reform Act 1967, which ensures that these areas are protected and that their special appearance and character are retained for future generations.
The Heritage and Stewardship Team received over 700 applications from residents seeking permission to make changes to their property, 90% of which were approved, which remains consistent with previous years. Our review process saw 15 cases being considered, and we gave pre-application advice in 136 instances.
2024 Highlights
We published an updated Energy Efficiency Guide to support homeowners with both minor works and larger projects like window replacements and solar panels.
In November, our Sustainable Built Heritage Policy was approved, helping balance historic preservation with the need for energy-efficient homes.
We strengthened ties with other Section 19 towns such as Bournville and Port Sunlight, sharing insights and best practices.
Throughout the year, we hosted events and workshops to engage residents on sustainability, including input on updating our Design Principles and practical retrofit advice from independent experts.
At the June Green Festival, we showcased our sustainability work and continued wider community engagement to better understand local needs.
We remain committed to protecting the character of the Garden City while supporting a more sustainable future—together with our residents.

2025 Priorities
- Encourage sustainable heritage innovation through the implementation of the Sustainable Built Heritage Policy.
- Update our Design Principles to support homeowners under the Scheme of Management and leases. Focus on updating character area principles, so they remain practical and current with ever-changing technologies. This will include, for example, guidance on the installation of air source heat pumps.
- Equip residents with the tools, guides and information that support our vision and mission.