Architects in Hertfordshire
Founded more than 30 years ago, Gregory Phillips Architects is a multi-award-winning architecture studio specialising in contemporary residential design.
Within easy reach of London, with a mixture of traditional buildings dating back to the Saxons, through to its post-war expansion and redevelopment of many of its towns – Hertfordshire has a broad appeal and a rich architectural tapestry.
We have worked on a number of key projects within the county, including renovations of grand houses in Markyate Village and St Albans, refurbishment and extension of a Grade II listed farmhouse in Ware, through to new-build houses in the suburban towns of Welwyn and Rickmansworth.
Gregory Phillips Architects have a track-record of successfully navigating the planning and conservation departments of Hertfordshire’s various district and borough councils on a number of complex projects, as well as a network of trustworthy contractors, suppliers and design consultants that have worked with us in the county.


Gregory Phillips Architects have worked on new-build houses, renovation and extension projects and listed buildings throughout Hertfordshire and The Chiltern Hills, including projects in St Albans, Ware, Welwyn, Markyate, Rickmansworth and Berkhamsted.
Our Residential Architecture in Hertfordshire
We were fortunate to be given the opportunity to work on a grand house in Markyate, in the west of the county, close to the border with Bedfordshire. Then down in the southwest, our residential architects had the joy of designing a new dwelling in Rickmansworth. As well as the design we were also responsible for obtaining planning permission. The house includes four bedrooms, garage, gym, and formal reception rooms, as well a main open plan living area. There is also a large outbuilding situated at the end of the garden containing an indoor pool and spa facilities.
A bit further north and east lies the historic St Albans. Our project here was to design and manage a large extension and comprehensive remodelling of a period property. We were thrilled to combine contemporary design with period features, bringing the best of both worlds to delight the homeowner.
Further up to the northeast of the county, we had the privilege of working on a listed manor house in Ware.
Totteridge used to be in Hertfordshire, but these days it is part of the London Borough of Barnet. We have worked on several projects there, including an interior design and remodelling project on a 10,000 sq ft home. We are very proud that it won several awards, including the British Homes Award for Best Interior Design of the Year in the UK.
Expertise in Planning Permission
At Gregory Phillips Architects, we excel in navigating the planning process. Our team is highly experienced in dealing with local authorities and managing planning applications for a variety of projects.
We ensure that all designs comply with local building regulations – from new builds to complex renovations, our thorough approach and in-depth knowledge of planning guidelines streamline the process, allowing your project to progress smoothly and efficiently.
Commitment to Sustainable Architecture
At Gregory Phillips Architects, we are passionate about integrating sustainability into every aspect of our work. Our approach to sustainable architecture focuses on minimising environmental impact while maximising energy efficiency and comfort. We incorporate eco-friendly materials, innovative technologies and sustainable building practices to create designs that are both environmentally responsible and economically beneficial.
Our projects often feature energy-efficient systems, such as advanced insulation and renewable energy sources, to reduce carbon footprints and enhance long-term performance. By considering factors like natural light, ventilation and the use of sustainable materials, we strive to create buildings that are not only aesthetically pleasing but also contribute positively to their surroundings.
See our selected projects