Cornerstone Build by Design

Cornerstone Build by Design At Cornerstone Build by Design, we pride ourselves on being trusted local builders serving homeowners across Berkshire and Surrey.

Our reputation is built on core values of trust, integrity, transparency and reliability.

Continuing our works from the inside to the outside. 🌳 Landscaping works now underway over in Wokingham.
22/05/2026

Continuing our works from the inside to the outside.

🌳 Landscaping works now underway over in Wokingham.

Full home refurbishment in Notting Hill is well underway and due for completion next month.If you’re looking to give you...
13/05/2026

Full home refurbishment in Notting Hill is well underway and due for completion next month.

If you’re looking to give your home a fresh new look, planning an extension, or considering other works to your property but not sure where to begin — we’re here to help answer all your questions and guide you through the process from start to finish.

Decorating works underway in St Margaret’s
11/05/2026

Decorating works underway in St Margaret’s

Before and after - home transformation for our lovely client in Twickenham 🏡
11/05/2026

Before and after - home transformation for our lovely client in Twickenham 🏡

23/04/2026

Things are looking great at our full home reconfiguration and wraparound extension in Wokingham

On site in Wokingham checking in with the lads 👷‍♂️Only a few weeks to go now before we hand this one back over to the c...
22/04/2026

On site in Wokingham checking in with the lads 👷‍♂️

Only a few weeks to go now before we hand this one back over to the client — and it’s going to be a completely different house to the one we started with.

Before ➝ AfterA side and rear extension has completely transformed this home. The original space was small and disconnec...
09/04/2026

Before ➝ After

A side and rear extension has completely transformed this home.

The original space was small and disconnected from the garden. The new design creates a bright open-plan living area with large glazing and a modern brick finish.

Project highlights:
• Large rear & side extension
• Full-width glazing to the garden
• New roof structure with dormer detail
• Modern brick exterior

Exterior landscaping to follow.

Thinking of extending your home?
Send us a message to start your project.

Before ➝ AfterA side and rear extension has completely transformed this home. The original space was small and disconnec...
09/04/2026

Before ➝ After

A side and rear extension has completely transformed this home.

The original space was small and disconnected from the garden. The new design creates a bright open-plan living area with large glazing and a modern brick finish.

Project highlights:
• Large rear & side extension
• Full-width glazing to the garden
• New roof structure with dormer detail
• Modern brick exterior

Exterior landscaping to follow.

Thinking of extending your home?
Send us a message to start your project.

Another sign written van to join our growing fleet 🚐 Great work as always .uk
09/04/2026

Another sign written van to join our growing fleet 🚐

Great work as always .uk





Our new clients asked for a glow-up of their through lounge - and that’s exactly what we’ll deliver✨First stop - full pr...
24/03/2026

Our new clients asked for a glow-up of their through lounge - and that’s exactly what we’ll deliver✨

First stop - full protection of the hallway.

Stay tuned 😊

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