Laying out of land, dimensions and areas of each building plot; laying out of private streets

(1) The laying out of land for building, the dimensions and area of each building plot, the level, direction, width and means of drainage of every private street, the kind and number of trees to be planted and reared beside such streets and the height and means of drainage and ventilation of and access to all buildings to be erected on such land or on either side of such street shall be fixed and determined by the Commissioner subject to such general directions as the Standing Committee may give in this behalf from time to time with the general object of securing sanitary conditions, amenity and convenience in connection with the laying out and use of the land and of any neighbouring lands, and also with the object that the proposed private street may not conflict with any arrangements which have been made or which are, in the opinion of the Commissioner, likely to be made for carrying out any general scheme of new streets or of improvements of existing streets in the locality: Provided that if, within sixty days after the receipt by the Commissioner of any notice under section 217 or of the plans, sections, descriptions, scheme or further information, if any, called for under section 218, the disapproval by the Commissioner with regard to any of the matters aforesaid specified in such notice has not been communicated to the person who gave the same, the proposals of the said person shall be deemed to have been approved by the Commissioner. (2) When the Commissioner signifies in writing to the said person his approval of the said work under certain conditions or without any conditions, or when the said work is deemed to have been approved by the Commissioner as aforesaid, the said person may at any time within one year from the date of the delivery of the notice under section 217 to the Com­missioner, proceed with the said work in accordance with the intention as described in the notice or in any of the documents aforesaid and in accordance with the conditions, if any, prescribed by the Commissioner, but not so as to contravene any of the provisions of this Act or any rule or by-law.