Building and construction services being, maintenance and repair services for commercial and residential buildings; providing information, advisory and consultancy services relating to building, construction and maintenance of commercial and residential buildings; assessment, estimation and compilation of consultancy and advisory reports for commercial and residential buildings; building and construction supervision; property development (repair and maintenance) for commercial and residential buildings and provision of installation, repair and maintenance services in the field of electrical, gas, plumbing and data cable networking for commercial and residential buildings