The paper will present the sphere of activity, across which the large landowners can influence on space of property market. Among large landowners we especially can point out communes who possess the considerable part of land and buildings on urban areas. The paper describes activities of large landowners influencing on spatial as well as economical condition of functioning local property markets. The results of research will concern mainly the activity the local authorities (sale of land, building of technical infrastructure, spatial planning etc.) and their results on property market (the influence on demand, the supply and price). Analyse shows, that the large can have large influence on demand and supply, but also the prices on local the property market. Oriented activities these owners can simultaneously make up the important factor of local development across favour the investment initiative on given area.