House Extensions Cardiff & South Wales
Need more space? R&Z Construction designs and builds single and double storey extensions that feel like a natural part of your home. Clean finishes, solid construction, and a process that keeps disruption to a minimum.
House Extensions Examples:
What's included:
Single and double storey extensions
Rear, side and wrap-around extensions
Full structural and groundworks
Matched finishes to existing property
Many single storey rear extensions fall under permitted development rules and don’t require planning permission. Double storey or side extensions may need approval — we’ll advise you from the start.
Single storey extensions typically take 8 to 12 weeks. Double storey extensions can take 12 to 20 weeks. We provide a clear schedule before work begins.
Yes. We take care to match brickwork, rooflines and finishes to your existing property so the extension looks like it was always part of the home.
Extension costs depend on size, specification and ground conditions. Contact us for a free site visit and fixed-price quote tailored to your project.