Valuation and Estate Management is the supervision and direction of interest held on land or landed property towards achieving some optimum benefit. it is quite a broad term for a number of areas that include property management, surveying, business and finance and the built environment and essentially the subject is primarily concerned with the valuation and management of land and buildings in the public and private sector these benefits may not necessarily be financial but political power, social status, prestige, and so on. valuation and estate management technologists and technicians work for the state, local authorities, private firms, research consultants and NGOs.