Later, she set up her own firm, Abha Narain Lambah Associates, which specializes in architectural conservation, building restoration and retrofit, historic interiors, conservation assessment studies, urban signage and street furniture. A consultant to ICCROM, Global Heritage Fund and World Monuments Fund on various projects, Lambah believes that being a conservation architect needs “dogged perseverance and huge amounts of patience”, more so if you want things to move from a master plan to actual implementation. The core of her architectural practice today focuses on colonial buildings, most of them of the 19th century Victorian Gothic kind. Her projects include Elphinstone College, Old Secretariat Mumbai, J.J. School of Art, Bombay High Court, Convocation Hall of University of Mumbai (designed by Sir George Gilbert Scott), the Bombay Municipal Head Office (designed by F. W. Stevens), Pune Engineering College and Vice-regal Lodge, Shimla.