House Extension Plans
House extension plans designed around how you want to live
We create extension plans that help homeowners add space with better flow, stronger natural light, and a clearer route through planning, building regulations, and construction.
When you need this
House Extension Plans
A successful extension is not just about adding square metres. It should improve how the home works day to day, connect spaces properly, and justify the investment. Crown Architecture & Structural Engineering Ltd helps shape extension proposals that are practical, approval-aware, and ready for the next stage.
Coverage
Local residential knowledge shaped around real project constraints
We support extension projects across London, Kent, Essex, and Surrey, including urban terrace homes, suburban semis, detached houses, and properties where planning sensitivity needs early consideration.
Included
What we can help with
- Rear extensions
- Side return extensions
- Wraparound extensions
- Double-storey extensions
- Kitchen and family room reconfiguration
Why it matters
Why this service matters
- Design advice shaped around lifestyle and property constraints
- Drawings that help homeowners understand layout, massing, and likely approval issues
- Support for both planning-stage and technical-stage information
Process
How this service moves from enquiry to drawing delivery
Step 1
Initial review
We review the property, project goals, and any existing plans, photos, or sketches so the advice starts from the right context.
Step 2
Scope and drawing route
We recommend the right path for your stage, whether that is concept design, planning drawings, building regulation information, or coordinated support.
Step 3
Package delivery
You receive a clear drawing package and practical next-step guidance for approvals, pricing, technical coordination, or onward construction planning.
FAQ
Questions homeowners often ask
How do I know if my extension falls under permitted development?
The answer depends on size, location, and your existing property conditions. We can review this early and advise on the most appropriate route.
Can you design open-plan kitchen extensions?
Yes. We regularly help homeowners rework ground floors to create brighter, more usable living spaces.
Do you also produce building regulation drawings for extensions?
Yes. We can support both the design and technical stages depending on what you need.
Ready to talk through your project?
Ready to move your project forward?
Tell us what you are planning and we will advise on the right drawing package, likely next steps, and how we can help you move from idea to approval and build-ready information.