New Delhi, July 18 -- The Delhi Development Authority (DDA) has eased norms for additions and alterations in its housing colonies, allowing residents to undertake a wider range of modifications, including installation of EV charging points, rooftop solar panels and accessibility ramps. The news norms also introduces a three-category approval system to simplify permissions. Under the revised policy -- which is already in effect -- flat owners will be able to install EV charging points in designated parking areas in line with the Centre's guidelines without prior approval. They will also be allowed to add lofts, install additional PVC water tanks, construct accessibility ramps, replace or augment rooftop water storage, convert windows into cupboards under specified conditions, and create openings for exhaust fans or window air-conditioners without seeking permission. The policy also allows temporary sloping terrace covers with lightweight roofing material and glazing through an intimation process. Rooftop solar panels for domestic use will be permitted with prior approval, subject to compliance with the unified building by-laws and the ministry of new and renewable energy guidelines. A DDA official said all cases will be processed as per the revised policy from now on....