Quality Builders in Seaton Sluice You Can Rely On
This two-storey house extension in Seaton Sluice, Northumberland, gave a family more living space and a fresh look. The original house had plenty of character, but it no longer suited the way they lived. So we built a two-storey extension with a bright, spacious kitchen-diner on the ground floor.
When our team at Brierdene Building Co were first approached about this home, the clients were clear about their vision: they wanted to transform their property into a modern, functional home. Like many of our projects across the North East, this wasn’t just about adding bricks and mortar; it was about creating a space that felt brand new while keeping the budget in control.
Blending the New Extension With the House
The original property, though full of character, no longer met the family’s needs. After discussing ideas, we agreed on a kitchen extension that would open up the ground and second floor, bring in more natural light, and make day-to-day living easier. One of the challenges we faced was blending the new structure with the existing house so that it looked seamless rather than “bolted on”. Through careful planning and precise construction, we overcame this and delivered a design that looks like it was always part of the home.
Keeping the Budget on Track
Budget mattered to this family, as it does for many of our clients planning a house extension in Northumberland. So we suggested materials and finishes that would last and look high-end, without unnecessary expense. Keeping every trade in-house also helped to control costs. Our own team handled the groundworks and brickwork, roofing, electrics, plumbing, rendering and decorating, as well as the driveway.


The Challenges: The Existing Structure and the Coastal Weather
Adjusting the existing structure to fit the new kitchen layout took careful groundwork and precision. At Collywell Bay, right on the coast, the weather was the other challenge; timing our works to coincide with favourable weather was essential. Despite this, our experienced team kept the build on track. Clear communication and flexible planning also kept disruption to a minimum for the family.
The Finished House Extension in Northumberland
The finished result speaks for itself. The new extension has not only given the family a spacious, modern kitchen-diner and double-storey extension but has also completely refreshed the appearance of the house. With new windows, fresh rendering, and a redesigned driveway, the home now has kerb appeal that matches its practicality. Most importantly, the family now has a high-quality extension that will add value to their property for years to come.

Builders in Northumberland Delivering Affordable House Extensions
What makes us proud of this Hartley project is not just the finished build, but the journey we took with the client, listening to their needs, overcoming obstacles, and delivering a result that exceeded their expectations. As builders with decades of combined experience working throughout Northumberland, we know how important it is to balance affordability with craftsmanship, and this project is a perfect example of that philosophy in action.
See more nearby: a loft conversion in Whitley Bay and a kitchen extension in Cullercoats.
If you’re thinking about a house extension in Northumberland, get in touch for a free, no-obligation quote. You can also call us on 0191 435 2019.