The various building uses and occupancies and premises to be permitted in the various zones are given in Appendix'M'. The Authority may modify the specified uses given in Appendix'M' with the approval of the Director of Town Planning.

 No building or premises shall be changed or converted to a use not in conformity with the provisions of these Regulations.

Use as specifically designated on Development Plan.

Where the use of a site is specifically designated on the Development Plan it shall be used only for the purpose so designated.

1. Where a site is designated for one specific public purpose on the Development Plan, the authority with the approval of Government may use the structure existing or to be built thereon or permit the use of the structure in combination with other purposes provided the same is in conformity with these rules and the zone in which the site fails:
2. ln the case of specific designation in Development Plan for schools and their playground or markets or service industries the authority may inter-change their uses provided the designations are on adjoing or nearby building or premises;
3. Where the use of plot area is especially designated for open markets, the Authority may in particular cases, permit development work on upper floors which shall be in conformity with the zone in which the plot fails; and
4. Construction of multi-storeyed garages for parking may be permitted on parking lots.

Uses to be in Conformity with the zone - Where the use of buildings or premises is not specifically designated on the Development Plan, it shall be in conformity with the zone in which they fall;

Any lawful non-conforming use of premises existing prior to the date of enforcement of these regulation, shall continue upto a period as may be specified in the Development Plan. Provided further that a non-conforming use shall not be extended or enlarged and that when a building containing non-conforming use is pulled down or has fallen down, the use of the new building shall be in conformity with these regulations.

Industries - Where a non-conforming industry has been granted a written permission without a condition for its shifting to a conforming zone at the end of a specified period, additions thereto for the manufacture of new articles or for starting new process may be permitted by the Authority when -

1. Such schemes form an integral part of and are directly connected with the process carried on in the existing unit;
2. Such schemes of additions do not envisage more than 5% increase in the employment and do not results in increasing existing authorized floor space for the industrial user;
3. Such addition is for preventing undue loss or improving the working efficiency or the conditions of existing unit or for balancing the existing production units for the industry
4. A certificate from Maharashtra Prevention of Water, Air etc. Pollution Board is obtained
5. Satisfactory means of access as required under these regulation for industrial zones is provided and maintained; and
6. Parking, loading and unloading spaces are provided according to these regulations.

Before permitting any such additions, the Authority shall first satisfy that the degree of nuisance from the existing unit will in no way be increased by such additions.

Others (Non-Conforming Users Other than industries) - Where non-conforming users existing prior to the date of enforcement of these regulations are allowed to be continued in the Development Plan, and additions to such non-conforming use not exceeding the permissible F. S. I./total permissible Built-up Area for the zone or the normal floor area ratio for the non-conforming user, whichever is less, may be permitted subject to the following terms and conditions, namely.-

1. The whole building is owned and occupied by the one establishment only;
2. The proposed additions are for preventing undue loss or for improving working efficiency or conditions of existing user;
3. The additions and alternations are meant for the existing user and not proposed to be let out; and
4. Open spaces and parking spaces required under the Development Control Regulations shall be provided

Widths of Roads in the Development Plan - Not withstanding anything contained in the Development Plan or in this rules the authority may from time to time prescribe regular lines of streets of widths different from those shown in the Development Plan.