We take a focused look at what your site or property can achieve, exploring design options, planning considerations, and practical constraints. Our feasibility studies provide clear, realistic guidance to help you understand opportunities and limitations before committing to a project with confidence at an early stage.
We help shape ideas into clear, well-designed proposals that are ready for planning. From early feasibility and site understanding through to preparing and submitting planning applications, we guide clients through the process and work closely with local authorities to support a positive outcome.
We prepare clear, coordinated building regulations drawings that translate design intent into build-ready information. Alongside this, we provide specification writing and site-based services, working with consultants, contractors, and building control to support approvals and condition sign-off while maintaining the quality and clarity of the original design.










PEN.25 Architecture was founded on the belief that good design should feel personal.
I work closely with my clients to create spaces that genuinely improve everyday life.
I’m Andy Downer MCIAT Chartered Architectural Designer based in Bournemouth
With 20+ years of experience, I kicked off my career designing luxury homes in Sandbanks and delivering major builds for national house builders. Since then, I’ve worked on everything from dementia care facilities to large affordable housing schemes, giving me a strong mix of residential and commercial knowledge.
I create planning and building regulations drawings that keep projects clear, smooth, and moving in the right direction.
My approach is friendly, collaborative, and always client-focused, turning ideas into spaces that feel personal, work effortlessly, and genuinely make a difference.
We’d love to hear about your project and explore how we can work together.
Whether your project is large or small, we are hear to help.