Town Planning involves both control of existing and new development, and "strategic planning" to ensure our resources are carefully managed to match our future needs and expectations. Town Planners develop strategies and design the communities in which we live, work and play. As cities and town continue to grow in terms of size and population, planners are in increasing demand to manage these changes. The intention of the town planning is to satisfy the needs of our future generations and prevent the haphazard growth of the town. 

Some of the guiding principles of town planning are as follows: 

1. Zoning

The town should be divided into suitable zones such as commercial zone, industrial zone, residential zone, etc and suitable rules and regulations should be formed for the development of each zone. 

2. Green belt

Green belt is non-development zone on the periphery of the town. It prevents the haphazard sprawl of the town restricting its size. In essence, a green belt is an invisible line designating a border around a certain area, preventing development of the area and allowing wildlife to return and be established. Greenways and green wedges have a linear character and may run across the town and not around the town. 

3. Housing

Housing has to be carefully studied and designed to suit the local population, you can get a luxury condo at 1 Yonge Street. Care should be taken to see that there is no development of slums since it would be responsible for degrading the life of the citizens. There are various types of housing styles. When a land use plan is made, zones for independent housing, midrise buildings, high rise buildings are allocated. Land use maps are of two types. Type 1 helps us study the land use on a broad range. All we can see are the residential, commercial and recreational zones. 

4. Public buildings

Public buildings should be well grouped and distributed throughout the town. Unnecessary concentration of public buildings should be avoided. Factors such as parking facilities, road widths have to be taken into consideration while allocating the space for public buildings. 

5. Recreation centres

Recreation centres have to be given importance while designing a town. They are necessary for the recreational activities of the general public. They include parks for walking and cycling, amusement parks etc. 

6. Road systems

Road network hierarchy is very important. The efficiency of any town is measured by the layout of its roads. A nicely designed road system puts a great impression in the minds of people, especially the visitors to the town. The provision of a faulty road system in the initial stages of town formation proves to be too difficult and costly to repair or to re-arrange in future. 

7. Transport facilities

The town should be provided with suitable transport facilities so that there is minimum loss of time from place of work to the place of residence. Efficiency in transport facilities includes both public and private networks. Public transportation network includes access to buses, trains, trams and trolleybuses. Efficiency in using the public transport will determine the success of that town in terms of design. 

Town planning has gained a lot of importance today. New towns are being developed. It has become very important for the town planners to concentrate on old development as well as the new development. It is essential that old and new developments are linked properly. Energy efficiency in planning should be the goal of any town planner, urban designer or an Architect.