Section 30(10)(ii) in Punjab Urban Planning and Development Building Rules, 2018
(ii)Other than above buildings, the maximum height of the boundary wall along the road or open space or park shall be 0.9 m from the centre line of the adjoining road. However, above the boundary wall, the perforated wall such as stone jali/ iron grills/ vegetation of maximum upto 0.9 m high may be constructed.