Idle House Extensions

Add Space & Value To Your Home With Professional House Extension Services

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Build the Space You Need with MRJ Extensions in Idle

From cramped kitchens to underused garages, many Idle properties are full of untapped potential. MRJ Extensions provides tailored extension solutions for homeowners and business owners seeking additional space, without the hassle of relocation. Whether you're planning a single-storey kitchen extension or a multi-storey commercial build, our expertise ensures your investment adds long-term value and everyday comfort.

Every home extension we create is a combination of thoughtful design, structural integrity, and customer collaboration. We know how to work within local building regulations and take pride in delivering projects that reflect the character of your property. Let us help you design a home or property that grows with your lifestyle.

Fast-Track Options and Flexible Scheduling

For property developers or commercial clients on a tight schedule, MRJ Extensions offers fast-track project options. We streamline planning submissions, coordinate overlapping build phases, and use modular or pre-fabricated elements where appropriate to save time. This approach is ideal for developers looking to maximise return without lengthy delays.

Homeowners also benefit from our flexible scheduling. We can coordinate around school holidays, work-from-home arrangements, or urgent timelines, without compromising build quality. Whether it’s a quick porch extension or a complex multi-storey build, we adapt to meet your needs efficiently.

A Commitment to Craftsmanship and Client Satisfaction

Every extension we build is a reflection of our reputation. That’s why MRJ Extensions never cuts corners or rushes through stages. From the foundations to the finishes, our tradespeople apply the highest standards of workmanship and care. We utilise high-quality materials, adhere to best practices, and conduct rigorous inspections at every stage.

We measure success not only by the build quality but by the satisfaction of our clients. That’s why many of our new projects come through referrals or returning customers.

Do I need planning permission for a house extension in the UK?

Most small extensions fall under permitted development rights, meaning you may not need full planning permission. Larger projects or those in conservation areas will usually require approval from your local council.

What are permitted development rights for extensions?

Permitted development rights allow you to extend your home without applying for planning permission, provided certain size and height limits are met. Always check with your local planning authority to confirm before starting work.

How much does a house extension cost in the UK?

On average, a single-storey extension costs between £1,500–£2,500 per square metre. Prices vary depending on location, design, and the complexity of the build.

How long does a house extension take to build?

A straightforward single-storey extension may take 10–12 weeks to complete. More complex or multi-storey builds could take 4–6 months.

Can I live in my house while the extension is being built?

Yes, most people stay in their homes during the build, although there may be some disruption. Builders will often section off areas to keep the rest of the house habitable.