One of the crowning glories of a loft conversion in London is the opportunity to create a space filled with natural light from two elevations. At AltoLoft, we achieve this on the front roof pitch using the world-leading Velux roof windows. Whether you are planning a box dormer loft conversion, mansard loft conversion, hip-to-gable loft conversion, L-shape or outrigger loft conversion, piggyback loft conversion, or a straightforward Velux loft conversion, roof windows can be beautifully integrated into the design.
For homeowners across South London – from Catford and Brockley to Crystal Palace, Dulwich and Forest Hill – bringing daylight into a dark attic is often the defining feature of a successful London loft conversion. Velux roof windows are renowned for their quality, energy efficiency and ventilation performance. They are suitable for virtually every roof type, and there are even conservation-style Velux windows designed specifically for properties in conservation areas where planning requirements demand a more traditional appearance.


The benefits go far beyond brightness. Natural light creates the illusion of greater space, making your new loft bedroom, home office or living area feel open and expansive. Ventilation is equally important, especially during warmer months in London, and Velux roof windows provide excellent airflow to keep your loft conversion comfortable all year round.
But there is also something more poetic about a well-positioned roof window. We’ve built loft conversions in the darker corners of Lewisham, along unsuspecting side streets in Crofton Park, and in quiet cul-de-sacs in Norwood. At street level, your world can feel small — defined by your road, your neighbours, your daily route to the station. Then a Velux window is installed, and suddenly that microcosm is broken open. From your new second-floor loft conversion, you’re presented with the wider skyline of London — shifting light, dramatic sunsets, the glow of the city at night. The sun, moon and stars become part of your everyday interior.


A loft conversion in South London is not just an extra room added to your house. It’s a chance to reconnect your home with light, air and perspective. With expertly installed Velux roof windows from an experienced South London loft conversion company, your unused attic can become the brightest and most inspiring space in your property.
Let in the light with an AltoLoft loft conversion.















