An L-shaped dormer conversion is an ideal loft solution for properties with existing rear extensions, such as those commonly found in Victorian and Edwardian terraced homes. This type of conversion joins two dormers together—one on the main roof and the other over the rear extension—forming an ‘L’ shape when viewed from above. The result is a spacious, versatile loft layout that maximises every inch of your roof space.

At Top Mark Conversions, we specialise in designing and building L-shaped dormers tailored to your property’s layout and your personal requirements. Our team manages every aspect of the project—from structural calculations and building control to construction and final finishing touches. We ensure the extension not only blends seamlessly with the original structure but also adds significant value and functionality to your home.

Get in touch with us today to start your project with us!