Planning and Architectural Consultants in Cornwall
At Cornwall Planning + Architecture (CPA Studio), we bring together expert planning knowledge and sustainable architectural design - helping you make the most of your property or development opportunity in Cornwall.
Based in Truro, Cornwall, we work right across the county. We help homeowners, businesses, and developers bring their ideas to life through intelligent and efficient planning-led architectural solutions.
With over 30 years of experience, our team understands Cornwall's unique character and all the complexities of local planning policy. Whether you’re extending your home, designing a coastal retreat, or developing a commercial site, talk to us every step of the way. We're with you from first ideas to planning approval.
We’re known for our efficient, place-sensitive approach and our strong working relationships with Cornwall Council, town/parish councils, and specialist consultants. Together, we make the planning process smoother, faster, and more successful — so you can move from vision to build with a clear strategy and efficient delivery plan.
Before committing to a full planning application, CPA Studio offers expert pre-application advice and site feasibility assessments to help you understand your project’s potential. We evaluate planning constraints, local policy, and site context to identify opportunities and risks early—saving time, reducing costs, and increasing your chances of approval. Whether you’re exploring a new build, extension, or change of use, our clear, strategic guidance helps you move forward with confidence.
CPA Studio provides a complete planning application submission service, managing every detail to ensure your proposal meets local policy and technical requirements. We prepare and coordinate all necessary documents, drawings, and reports, and liaise directly with Cornwall Council and relevant stakeholders to streamline the process. Our proactive approach reduces delays, improves communication, and gives your application the strongest chance of approval—whether for a residential extension, new build, or commercial development.
CPA Studio offers expert support in preparing and submitting Certificates of Lawfulness to confirm the legal status of existing or proposed developments. Whether you’re seeking to regularise past works or confirm permitted development rights, we compile robust evidence and clear documentation to support your case. Our understanding of planning law and Cornwall Council procedures ensures your application is professionally presented and has the best chance of success—protecting your property and future plans with confidence.
CPA Studio provides professional support for Prior Approval applications, helping clients confirm whether proposed works—such as larger home extensions, agricultural conversions, or change of use—require full planning permission. We assess eligibility under permitted development rights, prepare all required documentation, and liaise with Cornwall Council to ensure your submission meets statutory requirements. Our clear, informed approach helps you avoid delays and proceed with confidence.
CPA Studio supports clients in the discharge of planning conditions, ensuring all post-approval requirements are met efficiently and in line with Cornwall Council’s planning obligations. We prepare and submit the necessary documentation, coordinate with consultants where needed, and manage communication with the planning authority to secure timely sign-off. Whether your conditions relate to materials, landscaping, ecology, or highways, we help you move forward with confidence and compliance.
If your planning application has been refused, CPA Studio can help you challenge the decision through a well-prepared planning appeal. We assess the refusal reasons, advise on the best strategy, and prepare compelling appeal submissions to the Planning Inspectorate. With deep knowledge of Cornwall Council’s planning policies and appeal procedures, we ensure your case is clearly presented, professionally argued, and supported by strong evidence—giving you the best chance of a successful outcome.
If you’ve received a planning enforcement notice or are concerned about a potential breach, CPA Studio offers clear, professional guidance to help you respond effectively. We assess the enforcement case, advise on legal options, and prepare robust representations to Cornwall Council where appropriate. Whether you’re seeking to regularise development, appeal an enforcement notice, or avoid future issues, our strategic approach helps protect your property and resolve matters with confidence and care.
CPA Studio offers tailored project management services to guide your development from concept to completion. We coordinate architects, consultants, contractors, and local authorities to ensure your project runs smoothly, stays on budget, and meets key milestones. With a clear understanding of planning conditions, construction timelines, and Cornwall Council procedures, we provide hands-on support that reduces stress and delivers results—whether you’re building a new home, extending a property, or managing a multi-phase development.
At Cornwall Planning and Architecture, we support individuals and communities who wish to object to planning applications that may negatively affect their local area. Using our professional planning expertise, we craft clear, well-reasoned objection letters that reflect both policy and local concerns. Our goal is to help your voice be heard effectively by planning authorities, increasing the chance of a successful outcome.
CPA Studio develops clear, creative architectural concepts that respond to site context, planning policy, and client vision. Whether for a new build, extension, or redevelopment, our designs balance aesthetics, functionality, and planning potential—laying the groundwork for successful applications in Cornwall.
CPA Studio produces detailed, planning-compliant architectural drawings for all types of development, including new builds, extensions, and commercial projects. Our drawings meet Cornwall Council’s submission standards and clearly communicate design intent—supporting smooth approvals and successful construction.
CPA Studio prepares accurate, compliant Land Registry plans and supporting documents for property sales, leases, and boundary registrations. Our drawings meet HM Land Registry standards and clearly define property extents—ensuring smooth legal processes and professional presentation.
CPA Studio coordinates reliable energy performance assessments through trusted consultants to support planning applications and building regulations. Whether for SAP calculations, U-values, or sustainability statements, we ensure energy data is accurate, compliant, and aligned with your architectural design and planning strategy.
CPA Studio supports clients in obtaining accurate building quotes and managing the tender process. We help ensure that quotes reflect the approved design, planning conditions, and site-specific requirements—providing clarity on costs and helping you choose the right team for your project.
CPA Studio prepares and submits building regulation drawings that meet statutory requirements and align with approved planning designs. We ensure compliance with structural, thermal, and accessibility standards—supporting a smooth transition from planning approval to construction.
CPA Studio provides Professional Consultancy Certificates (PCCs) to support mortgage applications, property sales, and compliance with lender requirements. Our certificates confirm that architectural work has been professionally designed and overseen—giving clients and stakeholders confidence in the quality and integrity of the development.
CPA Studio offers thoughtful interior design solutions that complement our architectural work and reflect each client’s lifestyle and vision. From spatial planning to finishes and fittings, we create interiors that are functional, characterful, and aligned with the overall design strategy.

Discount
One application can lead to another, that’s why returning clients receive a 10% discount on every application.
CPA Studio provided an expert service in assisting with my rear and side extension. Planning permission was swiftly granted and the build is now underway, can’t recommend them enough!
After building an extension to our beach house, we were reported to the Council and served with enforcement action. CPA Studio came to the rescue, provided all the required information and achieved planning permission. The understanding of the requirements and specialist policy knowledge was outstanding.
CPA Studio did an outstanding job in achieving planning permission for a 2 storey rear extension on my grade II listed cottage in St Buryan. Due to the complexities of the scheme, we first undertook a pre-application and then proceeded to a full planning application and listed building consent for which was approved as planned.


