120. Maintenance of entrances to courtyards.

Except with the consent1 of the local authority2 an entrance to a court or yard on which two or more houses3 front or abut must not be closed, narrowed, reduced in height or otherwise altered so as to impede the free circulation of air through the entrance4, and no permanent structure may be erected so as to impede the free circulation of air through such an entrance5. A local authority in giving such a consent may impose such conditions as it thinks fit with respect to the provision of other openings or means of access, or other means for