Application for a lawful development certificate for the proposed addition of 1no. wall-mounted air-intake louvre; 1no. roof-mounted air-exhaust roof cowl; and 4no. new condenser units at second floor level (within a courtyard that is not visible from the site boundary) of Block 17 of Newham University Hospital. These items are being installed to upgrade the ventilation of two rooms at first floor level within the Hospital's Endoscopy Department.