| Pinner View, St. George's Field, Harrow | 27 | 1.40 | permissioned |
| Chichester Court, Stanmore | 26 | 0.77 | permissioned |
| Northolt Road, Roxeth Library & Clinic | 26 | 0.53 | not-permissioned |
| College Road, 15, College House, Floors 1-5, Harrow | 26 | 0.05 | permissioned |
| Marsh Road, 221, formerly The George PH, Pinner | 25 | 0.15 | permissioned |
| College Road, 102, Harrow | 25 | 0.03 | permissioned |
| High St, Marlborough House, 159, Wealdstone | 25 | 0.16 | permissioned |
| Rayners Lane Estate, Big G, Phases 1&2 | 20 | 1.05 | permissioned |
| Headstone Road, 8, Kelly House, Harrow | 19 | 0.02 | permissioned |
| Imperial Drive, Talbot House, 204 - 226, Lower Ground floor, Rayners Lane | 19 | 0.19 | permissioned |
| Donnefield Avenue, Canons Park Station car park | 17 | 0.42 | not-permissioned |
| Pynnacles Close, Compass House, Stanmore | 16 | 0.09 | permissioned |
| College Road, 104, Vyman House, Harrow | 15 | 0.05 | permissioned |
| Alexandra Avenue, 465-473, adjacent Rayners Lane Station | 15 | 0.11 | not-permissioned |
| West Street, 87, The Powerhouse, Harrow On The Hill | 14 | 0.18 | permissioned |
| Station Road, Tesco store, Harrow | 14 | 2.21 | permissioned |
| Church Road, 43, Crazy Horse PH, Stanmore | 12 | 0.12 | permissioned |
| Canning Road, Premier House, Second Floor, Wealdstone | 9 | 0.24 | permissioned |
| Station Road, 324-6, Trinity House, 2nd floor, Harrow | 9 | 0.13 | permissioned |
| Canning Road, 1, Premier House, Wealdstone | 9 | 0.24 | permissioned |
| Station Road, 12-14, Harrow | 9 | 0.08 | permissioned |
| West End Lane, 69, Pinner | 9 | 0.08 | permissioned |
| Lowlands Road, 16-24 | 9 | 0.07 | not-permissioned |
| Honeypot Lane, 304, Haslem House, Stanmore | 9 | 0.17 | permissioned |
| Whittington Way, 74, Whittington Garage, Pinner | 9 | 0.07 | permissioned |
| College Road, 88-98, 4th floor, Harrow | 8 | 0.10 | permissioned |
| Kenton Lane, 395, Harrow | 8 | 0.09 | permissioned |
| St Johns Road, 13, 2nd & 3rd floors, Harrow | 8 | 0.08 | permissioned |
| St Johns Road, 13, Ground & 1st floor, Harrow | 8 | 0.08 | permissioned |
| St Anns Road, 1-9, floors 4&5 | 8 | 0.06 | pending-decision |
| Rosslyn Crescent, 50, Miller House, 1st floor, Harrow | 8 | 0.14 | permissioned |
| Station Approach, 36, Wealdstone | 8 | 0.04 | permissioned |
| Church Road, 15-19, Stanmore House, 1st & 2nd floors, Stanmore | 8 | 0.04 | permissioned |
| Greenhill Way, Public Conveniences, Harrow | 8 | 0.03 | permissioned |
| St Anns Road, 11 - 15, 2nd & 3rd floors, Harrow | 8 | 0.02 | permissioned |
| Honeypot Lane, 506-508, Woodfield House, Stanmore | 8 | 0.28 | permissioned |
| Harrow View, land rear of 209, Harrow | 7 | 0.23 | permissioned |
| Station Road, 328-332, Upper floors, Harrow | 7 | 0.03 | permissioned |
| Brookshill, Hillside, Harrow Weald | 7 | 0.39 | permissioned |
| Northolt Road, 205-209 | 7 | 0.03 | not-permissioned |
| Northolt Road, 505, Harrow | 6 | 0.03 | permissioned |
| Garages r/o 249-255 Pinner Road, West Harrow | 6 | 0.03 | permissioned |
| St Anns Road, Natwest House, 1 - 9, 1st & 2nd floors, Harrow | 6 | 0.06 | permissioned |
| Church Road, land rear of 56 to 58, Stanmore | 6 | 0.07 | permissioned |
| Stuart Avenue, garages Adjacent 7, Harrow | 6 | 0.14 | permissioned |
| Headstone Road, 8, Kelly House, Harrow | 6 | 0.02 | permissioned |
| Leeway Close, Hatch End | 5 | 0.02 | permissioned |
| Station Road, 322, Harrow | 5 | 0.03 | permissioned |
| High Road, 365, Rear of ground floor, Harrow | 5 | 0.04 | permissioned |
| Gayton Road, 59, Harrow | 4 | 0.04 | permissioned |