Design25 is a specialist property development and design business delivering high quality residential projects defined by character, longevity and attention to detail. Working across Hertfordshire, Essex and surrounding counties, the company has built a reputation for transforming distinctive buildings and sites into homes that balance architectural integrity with modern living. Design25 operates at the intersection of design, development and delivery. Rather than focusing on volume, the business concentrates on carefully selected projects where craftsmanship, quality and thoughtful design take priority. Each development is treated as an individual opportunity, shaped by its setting, history and potential rather than a standardised formula.

Luxury development and home extensions

The company is particularly recognised for barn conversions and character led developments. These projects demand a deep understanding of traditional materials, structural limitations and planning requirements, alongside a clear vision for contemporary lifestyles. Design25 brings this balance together through sympathetic design, careful planning and close collaboration with skilled trades and consultants. A clear example of this approach is Carte Lodge, a project that reflects Design25’s commitment to preserving architectural character while delivering refined, high quality living spaces. From layout and proportions to light, flow and finishes, every element was carefully considered to create a home rooted in its surroundings while meeting modern expectations.

Design25 takes a hands on role throughout the full lifecycle of each project, from site acquisition and concept development through to construction oversight and final delivery. This ensures consistency, quality control and design intent at every stage. With a focus on timeless design, durable materials and thoughtful presentation, Design25 continues to create distinctive homes for buyers who value individuality, quality and lasting appeal.