Expert House Extensions across the North East of England

Need more space but don’t want to move? Our expert house extension services across Newcastle and the North East give you room to grow. From open plan kitchen extensions to extra bedroom and full double storey builds. Whatever you need the space for, we’ll help you design it, plan it and build it.

Get a Free Quote

Tailored Home Extension Services in the North East

Single Storey Extensions

A single storey extension is a smart way to add extra space without major disruption. Whether you’re opening up a kitchen, adding a dining area or a more open plan flow, we design and build seamless home extensions across South Tyneside and the wider North East.

Double Storey Extensions

A double storey extension gives you twice the space and even more value. It’s ideal for growing families in Gateshead that need an extra bedroom, bathroom or bigger living area - all without the cost of moving. Across the North East, We’ll help you plan it right and build it to last.

Side Return Extensions

Side return extensions make clever use of the unused alleyway or space beside your home. In Durham’s older terraces and semi detached homes, they’re a smart way to open up the kitchen or dining area bringing in more light and creating a more usable layout in homes across the North East.

Wrap Around Extensions

A wrap around extension combines side and rear extensions to transform your ground floor layout. Across the North East- including homes in Sunderland- It’s perfect for creating a spacious open-plan kitchen, a home office or utility space - all flowing naturally from your existing rooms.

Over Structure Extensions

An over structure extension adds new space above an existing garage or single storey room. In North Tyneside and across the wider North East, it’s a clever way to create an extra bedroom, en-suite or study without losing any garden space - and making the most of what your home already offers.

Garage Conversions

Converting your garage is a cost-effective way to add usable space in the North East, without extending the footprint of your house. In areas like Newcastle they make ideal home offices, playrooms or guest bedrooms- and we’ll make sure it’s warm, practical and fully integrated with the rest of your house.

Orangeries

An orangery offers the light of a conservatory with the warmth and feel of a full house extension. Often chosen by homeowners in Gateshead looking for year round comfort it blends solid walls, roof lanterns and glazing to create a bright elegant living space in North East homes.

Porches

A well-built porch adds character, insulation and useful storage to your home’s entrance. In places like South Tyneside, where weather can shift fast, it offers a sheltered, practical space. we’ll design and build a porch that fits your home’s style and stands up to North East conditions.

Ready to Get Started with Your North East Extension?

Let’s talk through your ideas and see what’s possible. Whether you’re planning a single storey build or a full home renovation, we’ll explore the best options for your space. Book a free no pressure quotation with the Rushmore team today- we’ll guide you through every step with honest advice and expert planning.

Get a Free Quote

Our Renovation Process

At Rushmore, peace of mind starts from the first conversation.
We believe a smooth build begins with a clear, collaborative process — one where you’re involved at every step, from design choices to timelines and cost.

Our approach is structured but flexible, giving you the information you need to make confident decisions without overwhelm. After all, this isn’t just another build — it’s your home, your investment, and your vision coming to life.

01. Discovery Call

Our first step is a friendly phone call where we get to know your goals, timeline, and priorities. We’ll ask the right questions to understand what you’re after — whether it’s a rear extension, a full renovation, or a kitchen redesign.

We’ll introduce our Investment Tiers so you can see how the level of finish affects the budget, and we’ll give you ballpark pricing based on similar projects we’ve delivered across the North East.

Need drawings or planning support? Our optional Design & Build Service gives you architectural plans and early costing advice in one joined-up process — with first refusal on our build schedule once designs are complete.

Book a Call

Why Build a House Extension?

For most people, an extension starts with a need for space — whether that’s a bigger kitchen, room for a growing family, or simply making the layout work better day to day. But space alone isn’t the real benefit. A good extension makes your home feel right again — more comfortable, more usable, and more enjoyable to live in.

Many homeowners come to us because moving just doesn’t make sense. House prices, stamp duty, school catchments, stress — all for a home that still needs work when you get there. For familes in places like Durham a house extension offers a chance to stay rooted, keep the parts of the home they love, and change the parts that no longer work. It’s often more cost-effective than moving -especially when working with trusted home extension specialists that understand what’s possible.

At Rushmore, we offer a full Design and Build Service, which means you don’t need to hire an architect separately or guess at costs. As experienced renovation and extension builders, we’ll help you plan your project from the ground up, making sure it flows well, fits your needs, and stays in line with your budget from the start.

Many clients also choose to update key rooms as part of the project — especially kitchens and bathrooms, which often sit at the heart of these changes. That way, the new space isn’t just bigger — it’s better.

Done properly, an extension doesn’t just add square metres — it gives you back a home that works for how you live now, and for years to come.

Your Trusted Home Extension Builders in the North East

Ready to start your home extension project?

Whatever you are thinking about, whether a single storey garden room to a double storey kitchen and bedroom to a garage conversion Rushmore developments can make your vision a reality.

Book a Call