Design principles for side extensions

In addition to the above principles, requirements for at least 1m separation from the plot boundary and appropriate set down and set back (see section entitled Subordinate design), the following principles apply to the design of any side extension: i. Side extensions should not be more than two thirds of the width of the host property and should not be visually dominant (or overbearing) in relation to it; ii. The proportions and roof form (pitch of roof) should be in keeping with the design of the original house; iii. Materials chosen for the side extension are already evident in the existing house or street, and architectural features and basic elements (lintels, eaves, sills, gutters etc.) of the host property are replicated or carefully redesigned with reference to the character of the host property.