MAKE ROOM TO GROW
House Extension Specialists in South Wales
Add Space. Add Value. Stay Home.
Looking to expand your living space without the cost and hassle of moving? At Port Brick Developments, we design and build high-quality house extensions across South Wales, including Newport, Cardiff, and beyond. Whether you’re after a larger kitchen, a light-filled rear extension, or a fully functional home office, we create bespoke extensions that work for your lifestyle and budget.
Residential Extensions That Work for You
We understand that every home – and homeowner – is different. That’s why we take the time to listen to your goals, guide you through the design and planning process, and deliver a build that feels like a natural part of your home.
Our residential extensions are built to last, blend beautifully with your existing property, and often increase your home’s value significantly. From modern single-storey additions to full-width rear house extensions, we ensure each project combines functionality, style, and structural integrity.
We cover a range of extension types tailored to suit your home, including:
• Rear House Extensions: Perfect for adding open-plan kitchens, dining areas, or extra family space. Designed to maximise natural light and garden views.
• Side Return Extensions: Make the most of unused space at the side of your property, ideal for city homes in Cardiff or terraced properties in Newport.
• Wraparound Extensions: A combination of rear and side extensions that offer transformative results for larger renovations.
• Two-Storey Extensions: Add extra bedrooms, bathrooms, or an upstairs workspace while expanding your ground floor too.
• Garage Conversions: Turn an unused garage into a practical new room without extending your home’s footprint.
DESIGNED AROUND YOU
A Seamless, Stress-Free Process
We make extending your home straightforward, with a clear process designed around you:
- Consultation & House Extension Design Consultation & House Extension Design: We begin with a site visit and detailed discussion to understand what you need, then work with you to create a tailored house extension design that suits your home and planning constraints.
- Planning & Permissions We handle all the paperwork, liaise with local councils if needed, and ensure every extension complies with building regulations.
- Build & Completion Our house extension contractors manage the project from start to finish – always respectful, clean, and committed to delivering a high-quality finish. You’ll be kept in the loop at every stage, with honest advice, regular updates, and a dedicated point of contact.
Start Your Project Today
Book a Free Consultation
Speak to our team of local builders and get a detailed, no-pressure quote tailored to your home and budget.
GET STARTED TODAY
Get a FreeQuote
Ready to start your project?
Contact our expert team today for a free, no-obligation quotation and discover how we can transform your home with ease.
GET STARTED TODAYReady to Extend Your Home?
Let’s bring your vision to life. Whether you’re in Newport, Cardiff, or anywhere across South Wales, Port Brick Developments is here to make your house extension simple, stress-free, and beautifully built.

