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BASE Architecture

House Extensions

Transform Your Home with Expertly Designed Extensions

Tailored to Your Taste

Flexible Design Solutions

Maximize Your Living Space

Increase Property Value

Avoid the Hassle of Moving

See our testimonials
See our testimonials

House Extensions

A well-designed house extension should do more than just provide you with additional living space – it should help transform your existing property into a building that matches your lifestyle and requirements, without taking anything away from the existing structure. Our team of experts will work with you to assess your current needs and guide you through the process of extending your home by helping you manage the legal and contractual aspects, as well as overseeing the design and construction of your property. Talk to us today, and see how we can help you bring your property ambitions to life.

flat roof extension & remodelling of historic cottage


Choosing us for your home extension means partnering with a team that blends 20+ years of architectural expertise with a passion for creating spaces that enrich lives. Here’s why we stand out:

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Benefit from our hands-on support through every phase. We simplify decisions and streamline processes, ensuring a smooth journey from concept to completion.

Innovative Solutions for Any Space:

We turn constraints into creative highlights, ensuring every inch of your extension is both practical and aesthetically pleasing, regardless of your property’s challenges.


Your vision is our blueprint. We craft every extension to reflect your personal style and needs, ensuring your new space is a perfect addition to your home.

A Seamless, Stress-Free Process:

From initial sketches to final touches, our streamlined process is designed to eliminate stress & uncertainty. Clear communication, timely updates, precision & care.


With a commitment to eco-friendly designs, we ensure your extension not only adds space but also efficiency. Our designs incorporate sustainable materials and technologies, reducing your environmental footprint and saving on energy costs.

Local Expertise, Global Standards:

Leverage our deep understanding of local regulations coupled with our commitment to global design standards. This unique blend guarantees a smooth approval process and an extension that’s both compliant and captivating.


Our reputation is built on a foundation of excellence. With numerous accolades for our innovative designs and client satisfaction, you can trust in our commitment to delivering outstanding results.


We manage every aspect of your project, from securing planning permissions to construction oversight, ensuring a harmonious and cohesive extension that complements your home beautifully.


Each home and homeowner is unique, and so is our approach. We offer personalized services tailored to your specific needs, ensuring a perfect blend of functionality and aesthetics.

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Every great extension begins with a conversation. We start by listening to you—understanding your needs, desires, and dreams you have for your home. This initial consultation is the foundation of the project, where we align our expertise with your vision to ensure the final design truly reflects your aspirations.



With a clear understanding of your requirements, our team gets to work on crafting a bespoke design. This stage is all about attention to detail, as we meticulously tailor every aspect of the extension to meet your specific needs. We navigate the complexities of planning permissions and regulations on your behalf, ensuring your design not only meets but exceeds expectations while remaining fully compliant with local standards.



As we move into the construction phase, our focus shifts to precision, quality, and efficiency. Our experienced project managers oversee every step of the build, ensuring that timelines are met, communication is clear, and any potential issues are addressed proactively. We pride ourselves on maintaining a clean and safe site, minimizing disruption to your daily life.

How it works

Our Process:
Simplified for Your Ease

At the heart of our service is a commitment to simplicity and transparency. We’ve refined our process to ensure your journey from initial concept to the joy of living in your enhanced space is as smooth and enjoyable as possible.

flat roof extension & remodelling of historic cottage

Frequently Asked Questions

Still Have Questions?

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Depending on the size and quality of the finish, house extensions will almost always add value to your home, although it’s important to understand what this figure looks like so that a budget can be defined appropriately. In high-value areas, it’s not uncommon for well designed and built extensions to significantly increase the value of a property.

Depending on the size and scale of the project, many extensions can be considered for permitted development rights, although larger constructions such as a double-story wrap-around will be subject to approval of a full planning application.

There are many factors which can dictate the cost of a house extension, such as construction materials used and the quality of interior finishes, with rough guidelines sitting between £45,000 – £75,000 for a fully managed build.

Why our
love us


Get Started Today

It all starts here, tell us a bit about your project and one of our expert architects will get in touch to discuss your idea in more detail.

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