Looking for Expert Home Extension Services in Horsforth?
→ Need more space without the cost of moving?
→ Considering a single-storey, rear or double-storey extension?
→ Want help with design, planning and building regulations?
→ Prefer a clean, well-managed build with clear communication?
→ Looking for a fixed, transparent quote with no surprises?
→ Keen to add long-term value to your Horsforth home?
At MultiGroup Developments, we deliver high-quality home extensions in Horsforth — designed for everyday living, built to last, and fully compliant.
From concept and planning to construction and final sign-off, we manage the entire process so your new space is delivered on time, on budget and with a premium finish.

Trusted Builders in Horsforth for House Extensions
We plan, design and build extensions in Horsforth — creating bright, functional spaces that fit your lifestyle and add value to your home.

Single-Storey Extensions
Expand your ground floor with a modern single-storey extension that creates open-plan kitchens, dining spaces, or family rooms. We handle design, planning, and construction, ensuring the new space flows seamlessly with your existing home. With natural light, smart layouts, and quality finishes, a single-storey extension is one of the most cost-effective ways to add space and value to your property.

Double-Storey Extensions
Double-storey extensions maximise your property’s potential by adding space across two levels. Ideal for creating larger kitchens with bedrooms or bathrooms above, this option delivers excellent value compared to moving home. We take care of all structural work, planning permissions, and finishes, ensuring a cohesive design that blends perfectly with your home.

Rear Extensions
Transform your living space with a rear extension that opens up the back of your home to create spacious, light-filled areas. Perfect for modern kitchens, open-plan living, or indoor-outdoor layouts, rear extensions increase both functionality and resale value. We manage design, approvals, and construction for a smooth build and a stunning finish.

Side Return Extensions
Side returns make clever use of underused outdoor space, creating brighter kitchens and family rooms without sacrificing your garden. Our team designs and builds side return extensions with skylights, open-plan layouts, and seamless finishes to maximise the footprint of your home while boosting natural light and usability.

Wrap-Around Extensions
For maximum impact, a wrap-around extension combines rear and side return extensions to dramatically increase floor space. We handle design, planning, and structural works to ensure your home flows naturally and the new space adds long-term value. Wrap-arounds are ideal for creating expansive kitchens, dining areas, and living zones.

Kitchen Extensions
Kitchen extensions remain one of the most popular ways to upgrade a home. From spacious family kitchens to high-end open-plan designs, we deliver layouts that balance practicality with style. Our team takes care of design, structural work, electrics, plumbing, and finishes, giving you a kitchen space that enhances everyday life.

Over-Structure Extensions
Make use of existing garages or flat-roofed spaces with an over-structure extension. Adding rooms above these areas is a cost-effective way to expand without sacrificing garden or driveway space. We handle structural reinforcements, design, and build, creating additional bedrooms, offices, or bathrooms that integrate perfectly with your home.

Orangery & Conservatory Extensions
Create a bright, versatile living space with an orangery or conservatory extension. Featuring large windows, skylights, and stylish finishes, these extensions bring natural light into your home while offering year-round comfort. We ensure proper insulation and glazing so the new space is practical and energy-efficient, not just visually appealing.
Our Testimonials
We pride ourselves on the quality of our work and the relationships we build. Hear directly from our clients about their experiences working with MultiGroup Developments — from the first consultation to the final result.

Daniel Angadi - ⭐⭐⭐⭐⭐
John Paul and his band of Merry workers did a great job that we were really pleased with - efficient, on time, great finish and showed really good flexibility - we don't leave positive reviews often - but these guys deserved it. I highly recommend it - excellent professionals, work done on time (!), precise and clean! John Paul met a difficult challenge in the very short time I needed, all materials were purchased, good finishing with the right dose of humor - I highly recommend it!

Ken Ashcroft - ⭐⭐⭐⭐⭐
Work carried out in a professional and timely manner. Each stage was explained as the job progressed. The team worked well together and completed the job as schedules. Care was taken to tidy up at the end of the job.

Geoffrey Peacock - ⭐⭐⭐⭐⭐
Multigroup have carried out two jobs for us and both were carried out to a high standard. Would have no hesitation in using again and will recommend to others.

Matthew Marshall - ⭐⭐⭐⭐⭐
They have done a good and tidy job. All the team were polite and helpful.

Tracey Petheridge - ⭐⭐⭐⭐⭐
An absolutely fantastic company. Multigroup did exactly what they said, when they said they would. The lads were polite and cleaned up after the job leaving us with a great job that we're really pleased with! Would definitely recommend.

Dawn Kane - ⭐⭐⭐⭐⭐
John Paul and his team did a fantastic job on our entire living room. He shifted jobs around to fit us in sooner, always obliging and provided advice on how we could improve the finished result. It now looks amazing, like a different room. First class job Multigroup.

Margery Lynott - ⭐⭐⭐⭐⭐
Johnpaul and his team worked on 4 rooms in our home this week. We were delighted with the quality of the work undertaken and with the work ethic of the team Johnpaul leads a hard-working, polite and professional team who made every effort to meet our requirements and project deadline. They also ensured that they cleaned up at the end of the job which was important and demonstrated the excellent standards they seek to achieve. Using MultiGroup was a positive experience for us as customers, and we can happily recommend their services to others. Thank you Johnpaul, and your team, for all your good work. Margery and Gev Lynott

Steve G - ⭐⭐⭐⭐⭐
Recent work completed for a side extension. Saw good reviews on Facebook. Quickly responded to our contact and provided a quote. When we decided to go ahead managed to fit us in quickly. Knowledgeable and reliable - identified issues and communicated well with us. Very pleased with outcome and would use again and recommend.

John Webster - ⭐⭐⭐⭐⭐
The team that arrived where on time , clear with the description of what they would be doing ,covered up everything they could and did a very good job and finished off with cleaning as much of the mess away as was possible with so much dust in the air as for the office staff again first class service.

David Tyrrell - ⭐⭐⭐⭐⭐
Jean Paul was great he came and looked at the job quickly. The quote was through and reasonable within 24 hours. We agreed a date. He then asked if he could send the team early. They were all punctual polite clean and efficient. The job was completed as per the quote and the team cleaned up afterwards. Jean Paul checked I was happy before I was asked to pay. I would with out doubt use them again and feel confident recommending them.

Luchon - ⭐⭐⭐⭐⭐
John Paul, Richard and Lee were amazing. We have had a great deal of work done to our home by many tradesmen but Multigroup are in a league of their own. A price was agreed, a start date given, they turned up on time everyday, were neat and tidy and always communicated every step of the way. The final result is beautiful. They even came back once the scaffold was down to powerhose everywhere down. Incredibly professional throughout and would not hesitate to recommend them.

Simon Dempsey - ⭐⭐⭐⭐⭐
John and his team did an excellent job rendering our new kitchen extension. John was professional and very pleasant to deal with, and pulled out all the stops to get the job done within our timeframe.
John clearly has a problem solving mentality and is positive guy to work with. Hope to work with Multigroup again!

Mary Riley - ⭐⭐⭐⭐⭐
Jon & his team were very efficient. He kept us informed in all aspects of their work. Group of hard working lads. Wouldn’t have any hesitation of employing them again. Would certainly recommend. Thanks again for a brilliant job.


