Welcome to Diligent Developments. We are London based local builders.

We offer Building, Refurbishment, General Repairs and maintenance services at highly competitive prices. From Home Extensions and Loft conversions, to Kitchen and Bathroom Refurbishments.

We specialise in two work areas. Residential Households and School Premises.

We have over 40 years contracting experience, and have built up a highly qualified and experienced team. Contact us for a FREE quotation.


Construction is our passion.

We are passionate about reviving existing residential homes and improving educational establishments to facilitate better learning for children and young people.

Areas of Passion

Engineering 87%
Design and build 93%
Educational 93%
Construction technology 98%
Project Management 96%


We pay careful attention to our unique fully project managed design and build process.

Design and Planning for Schools - London

Design & Planning

As a full Design and Build Contractor, we at Diligent Developments undertake all responsibilities from architectural design, planning permission, to building regulations and local authority approval.

As one of London’s leading design and build contractor services, we offer a value for money design service, with a wealth of ideas and solutions that can enhance the architecture of your space. Our skilled architects work with an in-house team of highly experienced contractors, delivering high quality finishes every time.

London Building Contractor for schools


We understand schools.  From not using power tools during the day to working after 3.30 to carry out noisy works and repairs.
We focus on working with schools, as a result we take the safe guarding of children very seriously.

We ensure that we go above and beyond the statutory minimum standards that organisations have to meet with regard to DBS checks for vetting our staff.

Kitchen Contractor London


Our build process involves the use of the quality materials installed by skilled tradesmen. Our team are efficient and will endeavour to complete your build, with the least amount of inconvenience.

Our in-house project management and quality control team monitor every aspect of construction insuring completion on time, within budget and to the highest standard.