Aurora By-law 6543-23, s. 44.2(a) — Property Standards By-law

in a manner that minimizes damage to the heritage values and attributes;

• (b) in a manner that maintains the design, colour, texture, grain, or other distinctive features of the Heritage Attribute;
• (c) using the same types of materials as the original and in keeping with the design, colour, texture, grain, and other distinctive features of the original, so long as one architectural period is not favoured at the expense of another; and
• (d) where the same types of material as the original are no longer available, using alternative materials that replicate the design, colour, texture, grain, or other distinctive features and appearance of the original material.