Every named street in a borough gets a score from 0 to 100. Scores compare streets within the same borough, not across boroughs: 50 is the median street in that borough, and a 70 in one borough is not comparable with a 70 in another.
Each factor below becomes a percentile among the borough's streets with at least 5 homes on record. The factors are combined with the weights shown, and the street score is the percentile of that weighted total. A street missing a factor is scored on the factors it has, with the weights rescaled, and is flagged as a rough guide. The scores describe streets, not individual homes, and are not a valuation.
Live: score version 1.0, 2026-10-14.
| Factor | Harrow | Hillingdon | Sutton | Tower Hamlets | Watford |
|---|---|---|---|---|---|
| House types How much more the street's mix of detached, semi-detached, terraced homes and flats sells for than flats of the same size (Land Registry sales, else energy certificates). | 15% | 15% | 15% | 15% | 15% |
| Schools Nearby state schools, weighted by Ofsted result and distance (DfE Get Information About Schools and Ofsted). | 20% | 20% | 20% | 20% | 20% |
| Transport Walk to the nearest stations: best at 300–800 m, a little worse right next to one, falling to nothing by 2 km; minus a penalty for being on or beside an A road, motorway or high street. | 20% | 20% | 20% | 20% | 20% |
| Open space The measured price premium in this borough for the kinds of green space within 500 m (e.g. a golf course, a park of 2 ha or more, a churchyard). Only kinds that show a premium count (OS Open Greenspace). | 10% | 10% | 10% | 10% | 10% |
| Floor area Median floor area of the homes on the street, from energy performance certificates. | 15% | 15% | 15% | 15% | 15% |
| Extras For houses, garden land per home compared with streets of similar houses. For flats, being within 100 m of the Thames, a dock, canal or lake, compared with other streets of flats. | 10% | 10% | 10% | 10% | 10% |
| Low crime Burglary, anti-social behaviour, criminal damage, vehicle crime, violence and robbery reported within 150 m over a year, per 100 homes (data.police.uk). Fewer is better. | 10% | 10% | 10% | 10% | 10% |
First published version.