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Business Details
31 Years
experience
Award-Winning Architects in Llanelli, Carmarthenshire
Established in 1995, Lewis Partnership is a family-run architectural practice based in Llanelli, Carmarthenshire. We specialise in residential and commercial architecture, offering tailored solutions from new builds and extensions to conservation projects and community developments. Our team brings a progressive approach to every project, combining practicality with aesthetic design to meet client needs. With expertise across all RIBA stages, we provide full architectural services, including feasibility studies, planning applications, and construction management. Certified to ISO 9001:2015 and ISO 14001:2015 standards, we prioritise quality assurance and environmental responsibility.

Our client-centric philosophy fosters long-term partnerships, ensuring attention to detail and satisfaction from concept to completion. Operating across South, West, and Mid Wales, we serve diverse sectors, including education, leisure, and charitable organisations. Recognised with awards such as the David White Award for Architecture, we maintain a reputation for excellence and innovation. Our initial consultation service allows clients to explore project potential before committing, supported by a team dedicated to continuous professional development and technological advancement.
Services
Residential Extensions New Builds Commercial Architecture Community Projects Conservation Architecture
Details
  • Year established: 1995
Highlights and features
  • Family-run practice with 30 years of local expertise
  • Certified to ISO 9001:2015 and ISO 14001:2015 standards
  • Full-service architecture covering all RIBA stages
  • Client-focused approach with tailored design solutions
  • Award-winning projects across residential, commercial, and community sectors
Associations and certifications
  • ISO 9001:2015
  • ISO 14001:2015
What people say
Excellent professional service Quality of work is excellent Flexible and agile approach Timely receipt information Client-focused consideration
Services
Residential Extensions
Design and project management for residential extensions, blending practicality with aesthetic appeal. Services include feasibility studies, planning applications, and construction oversight. Tailored solutions ensure compliance with local regulations and client budgets.
Commercial Architecture
Full architectural services for commercial projects, from new builds to refurbishments. Expertise in educational, healthcare, and leisure sectors ensures functional, sustainable designs. Includes RIBA stage support and stakeholder collaboration.
Conservation Architecture
Specialist conservation and listed building services preserving historical integrity. Detailed planning and sensitive design adaptations ensure compliance with heritage regulations while meeting modern usability needs.
Community Projects
Architectural solutions for community and charitable developments, including schools and religious buildings. Focus on inclusive design, stakeholder engagement, and enhancing public spaces for long-term use.
RIBA Stage Services
Comprehensive RIBA stage support from strategic definition to post-construction evaluation. Includes feasibility studies, technical design, contract administration, and site inspections to ensure project success.
People
Phil Lewis
Director
Director with extensive experience in architectural design and project management. Specialises in commercial and community projects, ensuring client needs are met with innovative, sustainable solutions.
Simon Rees
Senior Architect
Senior architect overseeing residential and conservation projects. Expertise in navigating planning regulations and delivering bespoke designs that balance aesthetics with functionality.
Questions
What architectural services do you offer?
We provide residential, commercial, and community architecture, including extensions, new builds, conservation projects, and full RIBA stage support.
Which areas do you serve?
We operate across South, West, and Mid Wales, including Pembrokeshire, Swansea, Llanelli, and Carmarthenshire.
Are you ISO certified?
Yes, we hold ISO 9001:2015 (Quality Management) and ISO 14001:2015 (Environmental Management) certifications.
How do you involve clients in the design process?
We adopt a collaborative approach, offering initial consultations and regular updates to ensure designs align with client visions and requirements.
Can you assist with planning applications?
Yes, we manage planning submissions, including householder applications, listed building consent, and pre-application consultations with local authorities.