House Extensions Llanelli

At Castle Construction and Groundworks Ltd we believe that a recommendation says it all and when it comes to house extensions Llanelli we come highly recommended! Communication is essential to the complete process from beginning to end. We pride ourselves on our capacity to tune in to clients, advising them on the best way forward to build their perfect dream design. We’re approved by the Federation of Master Builders and Trust Mark accredited and all our work is fully guaranteed.

As with any extension, increasing the ground level space in your home will increase the value of your home, the cost of extending within Llanelli is approximately £1,000 per square meter while the average cost of buying is £3,000 – it’s clear that an extension makes a lot of sense, along with saving you the time and stress involved with moving.


house extensions carmarthenshire
house extensions carmarthenshire


We have a proven track record of finished assignments, from single storey Llanelli house extensions to complete refurbishments. Our company offers a full custom bespoke service using our in-house architects, surveyors, structural engineers, building inspectors, builders and joiners.

Our teams work with you through each phase of your project and will produce an extension you’ll be ecstatic with.


picture showing a recent house extension completed in llanelli
Kitchen Extensions Llanelli

image showing an example of a kitchen extension in llanelliThe kitchen, more perhaps than any other, is regarded as the multi-purpose room in a home, used to chat, eat and captivate guests, and of course to prepare your meals! But its also commonly the space where you are most stuck for space.

Castle Construction and Groundworks Ltd can work with you to provide a solution to your need for extra room by extending your present kitchen and giving you that large, open, light filled kitchen you’ve always thought of having. Kitchen House extensions Llanelli are a preferred way of increasing the ground level living area in your home, specially in Victorian or Edwardian terraced properties, using often wasted or seldom used side return or garden space to create a stunning kitchen while also increasing the value of your residence for the future. With the cost and strain of relocating, consider unlocking the potential of your home and really make it your home.


Side Extensions Llanelli

for side extensions llanelli look no further than barberryHas your family recently grown? Do you want a new office at home? Or do you just need extra space? A side extension can utilise ground level space which is at the moment underused or wasted, particularly in a side garden return, hence opening up your house and accommodating the needs you have.

Castle Construction and Groundworks Ltd has substantial experience and specialises in extending properties into side returns, we design and build utilizing a variety of roof lights and windows that create light and open extensions that actually improve the looks of your property and offer an amazing living or working space – we take pride in maximising the use of space and light.

we specialise in house extensions llanelli


Seamless House extensions to suit your existing homes exterior

Whether it’s a larger sized kitchen, an additional bedroom or you are doubling the size of your home, available as either a Design, Planning and Build service or a straightforward build from your existing plans. We’ll ensure that your extension is built to the highest quality which matches the current external appearance, surrounding landscape and flow of your property, so it seems like it has always been there.

With expertise in traditional stone and reclaimed brick house extensions Llanelli, we’re extremely proud of the high quality workmanship shown in our work and can provide a range of sustainable building materials to improve the energy efficiency of your property.