Get Started

About Us

  • Who We Are

About Key Developments

Who We Are

Key Developments is a family run construction company, delivering high quality construction and refurbishment projects across Sussex.

We specialise in home extensions, full property refurbishments, and the creation of modern open-plan kitchen diner spaces designed for contemporary living. From initial planning through to final completion, our team provides fully managed projects with a strong focus on craftsmanship, attention to detail, and clear communication, with a single point of contact throughout to ensure a smooth and stress-free experience.

With extensive local experience, we work closely with homeowners and businesses to transform spaces and deliver results that stand the test of time. 

End-to-End Project Management

We design and construct bespoke homes and extensions that enhance both space and functionality.

New Builds & Extensions

 Managing your project from concept to completion, we oversee every stage of the process to ensure a smooth and well-coordinated build.

Residential Refurbishment & Remodelling

Our residential refurbishment and remodelling services transform existing homes into modern, practical living spaces.

Commercial Refurbishment & Maintenance

We provide professional refurbishment and maintenance services for commercial properties, helping businesses upgrade and maintain their spaces to a high standard.

Garden Structures & Landscaping

We create outdoor spaces that extend the functionality and enjoyment of your home.

open plan conversions

We specialise in creating open-plan kitchen diner spaces designed for modern family living and entertaining.

  • Testimonial

What Our Customers Says

See what our clients have to say about working with our team and the quality of our work.

We couldn’t recommend Josh highly enough after our kitchen diner knock-through and kitchen fitting. Even when we changed plans last minute to include an additional knock-through into the lounge, it was handled seamlessly and completed within the original timeframe. Josh was reliable, easy to communicate with, and had a great system in place so we didn’t always need to be on-site. The whole process felt smooth and stress-free. A truly professional service with excellent customer care.

Jennie Brown Home Owner

It’s rare to find such high levels of professionalism and customer service, but that’s exactly what we experienced with Josh and the Key Developments team. From initial discussions and expert advice to detailed costings and clear timelines, everything was handled with clarity and care. Communication was excellent throughout, and we felt completely confident leaving the team to carry out the work. The final result exceeded our expectations. We’re so pleased we chose them for our home project.

Tom Etheridge Home Owner

We used Josh for carpentry work at our home and wouldn’t hesitate to recommend him for projects of any size. His pricing was clear and accurate, and he arrived exactly when he said he would. The work was completed to a very high standard, with great attention to detail. Having also seen his work on larger projects, it’s clear the same level of quality is maintained throughout. A reliable and skilled professional.

Sam Gerken Home Owner

As a busy architectural practice, working with Key Developments across multiple projects has been a great experience. Their support from the design stage through to completion has been invaluable to both us and our clients. They bring a wealth of knowledge to the team and are always willing to go the extra mile. Their involvement helps ensure projects achieve the best possible outcome. Clients also benefit from a high-quality finish at a competitive price.

Pump House Designs Architectural Practice

We used Key Developments for our knock through and kitchen renovations and we could not be more grateful to Josh and the team for everything they have done. The attention to detail and communication throughout the whole process was fantastic and we are over the moon with the final result! We can’t recommend them enough and will definitely use them for any future projects!

Daniel Muller Home Owner

I recently decided to open up my kitchen into a kitchen diner and was recommended Key Developments through a friend. From the start, Josh and his team were excellent, patiently answering all my questions and guiding me through the entire process. Communication was clear throughout, and the team were always punctual, polite, and respectful in my home. They made a real effort to keep everything clean despite the scale of the work, and the pricing was very competitive. The final result was spot on, I couldn’t be happier and would highly recommend them.

Ian Williams Home Owner

We used Key Developments for our knock-through and kitchen renovation and couldn’t be happier with the results. Josh and the team were fantastic throughout, with excellent communication and attention to detail at every stage. The whole process was smooth, and the final finish exceeded our expectations. We’re extremely grateful for their hard work and professionalism. We wouldn’t hesitate to recommend them or use them again in the future.

Sebastian Windsor Home Owner

Ready to Build Your Dream Space? Let’s Talk

Get in Touch

Contact Number

01323 573777

Email

Info@key-developments.co.uk

Address

Eastbourne, East Sussex

Ready to Build Your Dream Space? Let’s Talk

Get in Touch