Architects Cornwall
Restormel Architectural Services
Practical, affordable architectural design with reliable construction expertise. Based in St Blazey, operating across Cornwall.
Architectural Designer
From Concept to Completion
As an experienced architectural designer, Sarah Yelland provides a complete, end-to-end service that turns early ideas into fully delivered projects.
From initial concepts, artist’s impressions, and measured surveys through to detailed drawings, planning support, and Building Control documentation, every stage is handled with care and clarity.
With in-house construction expertise and a strong focus on practical, affordable design, Sarah ensures your extension, renovation, new build, or heritage project progresses smoothly from first sketch to final completion.
Why Choose RAS?
Quality Spaces, Built to Last
As a Cornish architect, Sarah Yelland at Restormel Architectural Services shapes every project with creativity, attention to detail, and a commitment to practical, lasting design. She works efficiently and supportively at each stage, providing clear guidance and affordable solutions that transform ideas into high-quality spaces built to endure and enhance everyday living.
My experience with RAS was second to none. Sarah was prompt, professional and personable. I would recommend her as an architect.
Our Architect Services
Planning, Design and Build
From initial planning and surveys through to detailed design, Building Control documentation, and in-house construction, Restormel Architectural Services supports every stage of your project. We ensure your vision is realised efficiently, creatively, and with lasting quality.
Planning
Expert planning advice, planning permission applications, and accurate planning drawings to guide your project smoothly through approval.
Surveys
In-house surveyors provide precise land and measured surveys, delivering accurate data to inform planning, design, compliance, and successful construction.
Drawings
Accurate Building Control drawings ensure your project meets all regulations, covering structural, safety, and sustainability standards for compliant construction.
Construction
RAS’s in-house construction team delivers architecturally designed new builds and developments, combining innovation, sustainability, and meticulous attention to detail.
Extensions and Renovations
Thoughtfully designed extensions and renovations that enhance your home, maximising space, comfort, style, and long-term value.
New Builds
Complete design support for new homes and developments, combining creative architecture, sustainable practical engineering, and seamless project delivery from start to finish
Listed Buildings
Expert guidance for listed and historic properties, including heritage assessments and impact statements to support planning approvals confidently.
Commercial Property
Comprehensive commercial architecture services, from design and planning to construction, creating functional, compliant, and high-quality spaces for businesses.
Very fast and efficient service... was straight on to the drawings... informative plans passed and now sorting the building regs for me... will definitely use again 100%.
Architectural and Construction Examples - Cornwall
Transforming Ideas into Spaces
Sarah produced detailed and innovative plans which we are proceeding with. She has been prompt, efficient and engaging. We would certainly use and recommend RAS in the future.
Featured: Planning Permission Cornwall
Helping You Get Planning
Navigating planning permission in Cornwall can be complex, but RAS makes the process clear and manageable. From feasibility advice and site assessments to accurate planning drawings and full application support, Sarah Yelland works closely with local authorities to improve approval outcomes and keep your project moving forward confidently.
Featured: Listed Buildings
Heritage and Conservation
We provide expert guidance for listed buildings and conservation areas in Cornwall. We design sensitive alterations and prepare detailed documentation, including heritage impact assessments, to support Listed Building Consent and planning approval while respecting historic character and accommodating modern living needs.
Featured: Home Extensions
Extending Your Home
As a residential architect, Restormel Architectural Services designs home extensions that enhance space, light, and everyday living. From small additions to multi-room projects, each carefully balances functionality, materials, and sustainability, integrating seamlessly with your home while adding value and supporting full planning approval.
Featured: In-House Construction Team
Building Your Vision
With an experienced in-house construction team, RAS delivers projects with quality and consistency. From new builds and extensions to commercial projects, seamless collaboration between design and construction ensures high standards, efficiency, and beautifully built, lasting spaces.
Sarah is a very friendly and professional architect who provided an excellent service at all stages of the planning application. She provided helpful suggestions and advice for the design and was always available to deal with queries. I could not recommend her highly enough.
Sarah is a very professional and approachable lady who helps with all queries immediately. She has been so helpful throughout our planning application and we are very grateful to her.
Very happy with the sorting of issues for our projects. All in a professional and personable way. No questions were too much or an annoyance. No issues with the approval for planning and explained in detail what will be needed for the projects we want to undertake. Up front and honest. Thank you!
FAQs
Answering Your Questions
Clear, practical answers to the questions we’re most often asked about working with Sarah Yelland and Restormel Architectural Services.
What is an architectural designer?
An architectural designer creates thoughtful, functional, and aesthetically pleasing building designs. Unlike some roles that focus purely on technical drawings, an architectural designer considers the look, feel, and practicality of a space from concept to completion.
Do I need planning permission for my project?
Not always. Some small projects may fall under permitted development rules. Sarah provides guidance and prepares any necessary planning applications to ensure your project complies with local regulations.
Can you design extensions or renovations for older or historic properties?
Yes. Sarah has experience with listed buildings and conservation areas, designing sensitive alterations that respect historic character while meeting modern living requirements.
How long does a typical project take?
Project times vary depending on scale and complexity. Initial design stages usually take several weeks, with planning approvals, technical drawings, and construction adding additional time. Sarah provides realistic timelines tailored to each project.
Can I use my own builder, or do you provide construction?
You can choose. Restormel offers an optional in-house construction team for a seamless design-to-build process, or you can proceed with your own contractor using the designs and drawings provided.
How do I get started with a project?
Getting started is simple — book a free consultation with Sarah to discuss your ideas, goals, and budget. From there, she will guide you through concept design, planning, and the next steps.
Contact Us
Let's Talk
We offer a free consultation, where we can discuss your project in more detail and help you decide on options.