No planning permission required. The simplest and least costly way to enlarge your home. The structural modification does not involve extending the loft area, but instead placing VELUX® windows within the existing roof line. Daylight is provided by roof windows or by lights set into the roof slope rather than by dormer projections. We adapt the existing roof for maximum space, so you get vertical windows and plenty of extra living space, plus extra storage space once all the nooks and crannies are made into shelves and cupboards.