One Expert Team. All Your Approvals.
Studio Casa helps homeowners turn a clear vision into a build-ready design. We provide precise, regulation-compliant home extension drawings that simplify the process, support contractors, and give homeowners the confidence to review works and make informed decisions. Every service includes expert guidance, detailed 3D drawings, and ongoing support. Helping you save time, and money.
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These challenges create genuine stress, anxiety, and frustration - turning what should be an exciting home improvement journey into a nightmare of paperwork and uncertainty.
We understand how overwhelming the extension process can be. The confusion, the worry about getting it right, and the frustration of dealing with multiple professionals.
That's why our team of structural engineers and planning specialists has helped more than a hundred of homeowners across London successfully navigate the process with our 100% planning approval success rate.
"I've been working with Studio Casa for a while now and always recommend them to my clients who need planning permission or structural design."
"Studio Casa made the whole extension process so much easier than I expected. Their expertise in planning regulations saved us so much time and stress."
"The team at Studio Casa guided us through every step of our home extension. Their 100% planning approval rate is well-deserved!"
"We were overwhelmed by the planning process until we found Studio Casa. Their architects and planners made everything clear and straightforward."
We carry out a full measured survey using advanced digital scanning technology.
In under one hour, we capture accurate dimensions and create a detailed 3D model of your property.
We meet with you via video call at a time that suits you, presenting a full 3D model of your home.
During the session, we explore your ideas, develop the layout together in real time, and guide you through the best options for your space, budget, and goals.
We prepare all drawings required for planning permission and building regulations approval, typically within 2 to 4 weeks. The process includes up to three design revisions to ensure the proposal fully reflects your needs, and we manage the entire planning application on your behalf. We submit everything to your local council and deal with any queries that arise until a decision is reached. You only have to pay the application fees directly to the council.
Once planning approval is secured, we produce the full structural design and construction drawings required to build your project.
This includes all technical details typically missing from standard architectural packages, ensuring your builder has everything needed on site.
With this complete package in hand, you’re ready to move confidently into construction.
Get all four essential elements in one seamless package from a single team - saving you time, money and stress.
Fill in the details below and we'll provide you with a comprehensive quote for your extension project.
Real Homes, Real Transformations: See How We've Helped London Homeowners
Discover how Studio Casa has helped homeowners across London transform their properties with our comprehensive architectural drawing packages. Each project showcases our commitment to providing all necessary drawings—from planning permission to building regulations and structural design—in one seamless package
