House Extension in London

A house extension is one of the best ways to add extra space to your home without the hassle of moving. It can give you the room you need for a bigger kitchen, a new bedroom, or just more space to relax.

At Iron Construction, we build strong, stylish, and practical extensions for homes across London. We work closely with you to understand your needs and bring your ideas to life.

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Why Choose a House Extension?

Add extra Extra Space

Increase your property’s value

Enhance comfort without the hassle of relocating

House Extensions Gallery

Why Work With Iron Construction?

Fully licensed and insured team

Transparent pricing and timelines

Free consultation and site survey

We take pride in the quality of our work and the satisfaction of our clients. Every house extension we build is carefully planned and completed with attention to detail, using strong materials and skilled builders.

Whether it’s a front house extension, a modular build, or a full-width rear extension, we treat every project with care — just like we would in our own homes. When you work with Iron Construction, you’re not just hiring a builder, you’re partnering with a team that cares about your home and your comfort.

Learn more about our team and values

Frequently Asked Questions

Do I need planning permission for a house extension?
Some house extensions fall under permitted development, meaning you don’t need planning permission. However, for front house extensions or larger builds, permission may be required. Don’t worry — we’ll help with all the paperwork.
Most house extensions take between 8 to 16 weeks to complete, depending on the size and design. We’ll give you a clear timeline before the project begins.

Yes, we always aim to make your new extension look like a natural part of your home. We match materials, brickwork, and finishes so everything blends in beautifully.

Ready to Start Your House Extension Project?

Contact us today to book a free consultation or call us directly.
We serve all of London, including West London areas like Chiswick, Putney, and Ealing.

Contact our team