Thanks for the replies. I've been away and only just saw that some more came in. To answer the questions:
*Hugh Jaleak* - unfortunately that's right on the boundary so it would take it onto my neighbour's property.
*cjard* - I've marked up the boundaries in blue on the drawing below and the existing wall is outlined in orange. We've got new cavity walls on both sides because we're not actually attached to the house on the left, just built very close to them and the neighbours on the right that we are joined to are... we're not on good terms with them! Thanks for your comments on the kitchen wastes. The two steps are about 300mm so we should be able to do as you say.
*Hugh Jaleak* - unfortunately that's right on the boundary so it would take it onto my neighbour's property.
*cjard* - I've marked up the boundaries in blue on the drawing below and the existing wall is outlined in orange. We've got new cavity walls on both sides because we're not actually attached to the house on the left, just built very close to them and the neighbours on the right that we are joined to are... we're not on good terms with them! Thanks for your comments on the kitchen wastes. The two steps are about 300mm so we should be able to do as you say.
