Home Extensions
Home extensions can give you the extra room you need while improving layout, day to day flow, and how the house works as a whole.
Sometimes the issue is not the area you live in. It is the amount of space you have and how the current layout is working.
An extension gives you the chance to add room where it matters most. If the house needs more than extra space alone, wider renovation services may also need to be considered as part of the bigger picture.
01
Gain the space needed for cooking, working or family time without the cost and disruption of moving house.
02
Extensions work best when the new space improves layout, flow and how the rest of the home connects.
03
Early site visits, written quotes and coordinated stages help bigger building work.
Cooksey Renovation Services
The right extension depends on the house, the plot, and what you want the new space to do.
Where the goal is better ground floor space without adding another level.
Useful where extra room is needed upstairs and downstairs in one project.
Open up the back of the house for brighter, more practical living.
A practical fit where the plot allows more width and a clearer layout.
A site visit helps identify the right size, layout and build approach for your home, budget and everyday needs.
Home Extension Guide
Bigger decisions feel easier when planning, approvals and pricing are explained clearly before drawings develop, budgets firm up and building work begins.
Some extensions fall under permitted development, while others need planning permission depending on size, position, and the work planned now.
Building regulations still matter where structure and openings are involved. Planning guidance and extension regulations are useful now.
Timescales depend on size, structure, site access, and how the work is phased from early groundworks through to the final fit and making good.
Home Extension Projects
You can look through recent projects to see how extension work has been carried out across different properties and different levels of scope.
Why Choose Cooksey Renovation
A good extension is not only about the new room. It is also about how the build is set up, how the new structure comes together, and how the finished work connects with the existing house.
Structural openings, foundations, roofing, insulation, and making good all need to happen in the right order. That is what helps the extension feel like part of the home rather than an obvious add on.
Five Star Reviews
Years Experience
Projects Completed
FAQs
Thinking about a home extension raises questions around planning, build stages, budgets and how the new space will connect.
Costs depend on size, structure, finish level, site access, and how much work is needed inside the existing house.
Timescales depend on size, structure, weather, access, finish level, and whether the house stays in use.
Some do and some do not. That depends on the size, location, and type of extension being planned.
Many projects include structural openings where the new space needs to connect properly with the home.
Cooksey Renovation covers the Vale, Cardiff, and Bridgend, with more detail on the Areas We Serve page.
Cooksey Renovation Testimonials
It helps to hear from homeowners who have already been through the process with Cooksey Renovation. Their feedback gives a clearer picture of the experience, the standard of work, and the care taken from start to finish.
Posted on Kimberly LongTrustindex verifies that the original source of the review is Google. Huge thank you to Lance and the team for their great work on our full bathroom renovation! Our old house threw up so many extra problems to work around, but the guys kept us well informed and worked hard to overcome everything They truly brought my vision of a modern meets vintage bathroom to life I'm especially obsessed with the tiling work, the detail and the effort for all those extra little touches make the room look so fab I am absolutely over the moon with how it's turned out! Thank you thank you thank you!Posted on Liz ParkinsonTrustindex verifies that the original source of the review is Google. From initial consultation to finished job the Cooksey were brilliant. Always looking on time, worked a full day, cleaned up after themselves and made sure we were completely happy with the work. Very friendly and professional. Covered every aspect of the installation of a new bathroom from liasing with suppliers to the electrics , plastering and tiling. Highly recommendedPosted on Lynsey WebbTrustindex verifies that the original source of the review is Google. We cannot recommend Lance and the team enough. From beginning to end him and the team were professional, knowledgeable and communicative. Lance did multiple visits to us before starting work to ensure the best end result, our bathroom was a difficult refurbishment to say the least, but the final result is a testament to Lance and the teams skill and determination. When the work was being completed they were clean and tidy, often worked incredibly long days and kept me informed on any changes or challenges. He worked with us to keep to our budget updated us on any additional material charges. My neighbour even commented on how friendly and polite they all were. I have already recommended Lance to multiple people but will also have them back for any other renovation we need completing in the future. I wouldn't go with anyone else now.Posted on Geoff LlewellynTrustindex verifies that the original source of the review is Google. Recently had our Bathroom renovated by Cooksey Renovation; they did a fantastic job throughout and transformed our bathroom! The quality of their work is to a very high standard. They arrived on the agreed date to commence the renovation, were on time every morning, cleaned up after them every evening, and were pleasant and communicative throughout. I can’t recommend this company highly enough and would certainly use them again or recommend them to friends and family.Posted on Stephanie KingTrustindex verifies that the original source of the review is Google. Cooksey renovations and the team did an amazing job with our new kitchen and flooring. The job needed blocking up doors, windows and a fair bit of plastering. They were all really tidy and cleaned up after each day before they left. I'm so happy with the work they have done. Thank you!Posted on Rachel CleaveTrustindex verifies that the original source of the review is Google. I cannot recommend Lance and his team enough! They have renovated both my bathroom and en-suite as well as repairing and replastering my living room ceiling following existing water damage. When I moved into my house, I knew there was gonna be a lot of work to do following previous leaks in the en suite and previous bad workmanship. All the team were professional, trustworthy and skilled in how they transformed my house. They kept everything clean and tidy (I even caught them hoovering my doorstep at one stage!) and made the house useable in between their working days. I had a very specific vision and they were able to make my dreams come to life and I’m so pleased with the end result. They ripped out my old suites, replaced rotten floor boards, rebuilt damaged walls and install all new paperwork. Nothing was too much trouble and they were also the most competitive quote I received. I have a kitchen and artexed ceilings to be renovated in the new year and there is no one else I would consider using. Thanks guys! I really love what you’ve done!Posted on Vivienne StarkTrustindex verifies that the original source of the review is Google. Cooksey Renovation are brilliant! Lance and his team are friendly, professional very skilled in all aspects of home renovation. Over the past 8 months they have done a lot of work in our new house and turned it into the home we wanted. Bathrooms, kitchen and living room have been completely renovated and modernised. We would highly recommend Lance for any work you need.Posted on Ann WalkerTrustindex verifies that the original source of the review is Google. Cooksey Renovations updated our tired bedrooms. Removed an old built in office, and two sets of large fitted wardrobes, removed one wall and door to enlarge main bedroom, made good all coving, fitted new radiators and flooring and much more. Excellent job, highly recommend. Would definetly use again. Many more photos on their Facebook page.Posted on Sophia FrangoulisTrustindex verifies that the original source of the review is Google. High quality workmanship. Couldn't do enough for us - the best around.Posted on Dylan HerbertTrustindex verifies that the original source of the review is Google. A return visit by Cooksey renovations to tile the floor of 3 existing bathrooms that didn’t need a complete re fitting. The work was to the highest and we are delighted with the end result. We have no reservations in recommending Cooksey renovations for this type of work.Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
Areas We Serve
Site visits are arranged across the Vale of Glamorgan, Cardiff and Bridgend, helping homeowners plan home extensions with clearer next steps, written quotes and practical advice from the start.
Barry homeowners often look at extensions when the kitchen feels too tight or family space is running short. A well planned extension can add room to spread out while helping the rest of the house work better.
In Penarth, home extensions are a practical route when moving feels unnecessary but extra space is needed. Ground floor additions and larger family rooms can help the property support daily life more comfortably.
Dinas Powys homeowners often want extra room without losing the feel of the existing home. A carefully planned extension can create space for dining, family living or a kitchen layout that works harder.
In Rhoose, extensions are often the right answer when the ground floor needs more breathing room. Added space can help improve layout, daily flow and how the house functions for a growing household.
Llantwit Major homeowners can gain more usable space without leaving an area they already enjoy. A home extension can support larger kitchens, better dining space or a more flexible family layout.
In Cowbridge, extensions often need to improve space while still feeling right for the property. Better planning can help the new build connect naturally with the existing home rather than feel added on.
For homeowners in St Athan, an extension can be the best route when the house needs to work harder for family life, guests or working from home. The aim is more space that feels properly useful.
Sully homes can benefit from extensions that open up the rear of the property and create better living space. Kitchen, dining and family areas often work best when the layout has room to breathe.
In Wenvoe, a home extension can help solve cramped rooms and awkward layouts without the disruption of moving. Better planning gives the new space a clearer purpose and a stronger link to the house.
Across Cardiff, extensions are a popular way to add valuable living space while keeping the home in the right location. A larger kitchen, family room or extra floor can ease pressure across the property.
Bridgend homeowners often choose extensions when one part of the house no longer supports everyday life properly. The right build can add space, improve layout and make the whole property feel easier to use.
If the house needs more room and a better layout, the next step is a straightforward conversation about what you want to add, how the space should work, and how the build could come together.
Cooksey Renovation provides a full range of home improvement services across Barry, Cardiff and Bridgend.
Copyright © 2026-Cooksey Renovation.
Website created & managed by CloudLine Media Ltd.
Fill out the form & leave the rest on us.