Call Now
Website
Call
Business Details
18 Years
experience
Award-Winning Architects in Stroud, Gloucestershire
Roger Gransmore Architect is an award-winning architecture practice based in Stroud, Gloucestershire. Our studio specialises in designing and delivering high-quality contemporary buildings that harmonise with traditional principles and natural local materials. With extensive experience across new-build homes, extensions to historic properties, and community-led residential schemes, we prioritise a collaborative and client-focused approach. Our team combines deep expertise in sustainable design with meticulous attention to detail, ensuring projects meet both aesthetic and functional requirements. We leverage our thorough understanding of light, materials, and thermal performance to create enduring, climate-conscious architecture.

Our commitment to excellence is demonstrated through numerous award-winning projects and a proven track record of exceeding client expectations. By integrating cost management strategies from the initial planning stages, we deliver high-quality solutions even within complex budgetary and site constraints. Our practice, led by RIBA Chartered Architects Roger Gransmore, Jack Morton-Gransmore, and Abigail Portus, operates from a uniquely converted 19th-century chapel in the Cotswolds. We welcome opportunities to discuss projects of all scales, from initial concept development to completion, and invite potential clients to visit our studio to experience our architectural philosophy firsthand.
Services
New-build homes Historic renovations Community schemes Sustainable design Planning applications Glass extensions Thermal performance Project management
Details
  • Year established: 2008
Highlights and features
  • We offer 17+ years' experience in Cotswold architectural projects since 2008
  • Our team includes RIBA Chartered Architects with specialist glass & thermal performance expertise
  • We provide cost-effective solutions through early-stage budget planning
  • Our practice combines traditional craftsmanship with modern sustainable design
  • We maintain a collaborative approach from concept to project completion
Associations and certifications
  • RIBA
What people say
Award-winning designs Excellent planning expertise Sustainable solutions Collaborative approach Historic sensitivity
Services
New-build homes
We design contemporary new-build homes that integrate sustainable materials and energy-efficient systems. Our approach balances modern aesthetics with traditional craftsmanship, creating functional spaces that respond to their natural surroundings. Each project benefits from our expertise in thermal performance and natural light optimisation, ensuring comfortable living environments that age gracefully while maintaining architectural integrity.
Historic renovations
Our team specialises in extending and renovating historic properties while preserving their character. We combine traditional building techniques with modern sustainability standards, ensuring sensitive interventions that enhance rather than compromise original features. Our experience includes listed buildings and conservation area projects requiring specialist planning permissions and material selections.
Sustainable design
We incorporate environmental considerations throughout the design process, from passive solar strategies to renewable energy systems. Our projects utilise locally sourced materials and energy-efficient technologies, including photovoltaic panels and thermal insulation solutions. This approach creates buildings that minimise environmental impact while maximising long-term cost-effectiveness for property owners.
Planning applications
We manage the complete planning application process for residential and community projects. Our services include preparing detailed drawings, historical research documentation, and liaison with local authorities. With extensive experience in complex site constraints and conservation areas, we maximise approval chances while maintaining design integrity throughout the submission process.
Glass extensions
We design contemporary glass extensions that enhance natural light and connect interior spaces with outdoor environments. Our technical expertise ensures thermal efficiency while maintaining aesthetic appeal, incorporating advanced glazing systems that comply with building regulations. These solutions create seamless transitions between traditional structures and modern architectural elements.
People
Roger Gransmore
Founding Architect
With over 20 years' experience in sustainable architecture, Roger leads design direction and strategic project management. His expertise in historic building conservation and modern material integration has earned multiple industry awards.
Jack Morton-Gransmore
Chartered Architect
Specialising in technical design solutions, Jack brings 15 years' experience in complex residential projects. His focus on thermal performance and energy-efficient systems contributes to the practice's award-winning sustainable designs.
Abigail Portus
Project Architect
Abigail manages client relationships and project delivery, with particular expertise in conservation area developments. Her 12 years' experience ensures seamless coordination between design vision and practical construction requirements.
Questions
What architectural services do you specialise in?
We specialise in contemporary residential projects including new-build homes, historic property renovations, and community-led schemes across the Cotswolds and South-West England.
How do you approach sustainable design?
Our sustainable approach combines natural materials, thermal performance optimisation, and renewable energy systems to create environmentally responsible buildings that age gracefully over time.
Can you assist with planning applications?
Yes, we manage complete planning applications including detailed drawings, historical research, and local authority liaison for projects in conservation areas and listed buildings.
What makes your practice unique?
Our unique combination of RIBA-chartered expertise, award-winning track record, and studio located in a converted 19th-century chapel informs our distinctive architectural philosophy.
Do you work outside the Cotswolds?
While based in Stroud, we work across Gloucestershire and the South-West, with experience delivering projects in diverse geographical and historical contexts.
How do you manage project budgets?
We implement cost management strategies from initial planning stages, providing transparent budgeting and value-engineering solutions to deliver quality within financial constraints.