Who we are.
We’re a family-run company with expert knowledge in house extensions and loft conversions. We guide you on build costs upfront, connect you with top builders, and deliver high-quality designs at an affordable price. Fast, efficient, and always honest - that’s the Kirkwood recipe for a stress-free extension.
Experts in extension plans and permission
We have a formula that works
We don’t just produce drawings — we support the entire process, from structural engineering to recommending trusted local builders. Whether it’s a single storey extension, loft conversion or kitchen extension, we explain costs upfront, including build costs, before you spend anything on plans. That’s what sets us apart.
We genuinely care about our clients and want you to have a clear understanding of potential costs before moving forward. We believe transparency and informed decisions are essential to achieving a successful house extension.
Designed to create a smooth, straightforward process
Free virtual consultation
Over 30 years experience
Affordable architectural design
Speedy turn around time on plans
The Kirkwood mindset
"It's a team effort"
“We have an opportunity with every customer to act with integrity and provide a service worthy of a five-star review. If we’re doing this, let’s aim to provide an unrivalled service that’s stress-free and highly recommended.”


