3Y Avg Price
£349,833
12 sales
Properties
62
8 freehold · 54 leasehold
Sales / Year
3.8
5-year average
Avg £/sq ft
£494
£5,317/m²
Rank in WD18
92nd
of 133 streets
Last Sale
£237,000
Apr 2026
Price History
Every recorded sale on this street, coloured by property type.
Last 10 Sales
130 total recorded
FLAT 3, GLOUCESTER COURT Observer Drive
Flat/Maisonette
£237,000
Apr 2026
4 Observer Drive
Terraced
£515,000
Nov 2025
FLAT 8, MAYFAIR COURT Observer Drive
Flat/Maisonette
£290,000
Nov 2025
FLAT 1, GLOUCESTER COURT Observer Drive
Flat/Maisonette
£220,000
Jul 2025
FLAT 16, KNIGHTSBRIDGE COURT Observer Drive
Flat/Maisonette
£344,000
Jun 2025
FLAT 23, MAYFAIR COURT Observer Drive
Flat/Maisonette
£305,000
May 2025
FLAT 6, GLOUCESTER COURT Observer Drive
Flat/Maisonette
£230,000
Mar 2025
FLAT 24, MAYFAIR COURT Observer Drive
Flat/Maisonette
£340,000
Jan 2025
FLAT 9, KNIGHTSBRIDGE COURT Observer Drive
Flat/Maisonette
£345,000
Nov 2024
FLAT 10, MAYFAIR COURT Observer Drive
Flat/Maisonette
£340,000
Aug 2024
Street Rankings — WD18
Streets ranked by 3-year average sale price. Showing positions 87–97 of 133.
| # | Street | 3Y Avg |
|---|---|---|
| 87 | Chenies Way | £360,000 |
| 89 | Whippendell Road | £359,337 |
| 90 | Hamilton Street | £352,000 |
| 91 | Metropolitan Station Approach | £350,850 |
| 92 | Observer Drive | £349,833 |
| 93 | Sydney Road | £341,817 |
| 94 | Epsom Road | £340,000 |
| 95 | Cassio Place | £339,167 |
| 96 | Moor Lane Crossing | £330,000 |
| 97 | Croxley View | £329,667 |
Property Mix
Type
Tenure
EPC Ratings
59 of 62 properties have an EPC record
Avg floor area: 786 sq ft (73 m²)
District Context — WD18
WD18 covers Watford's outer areas and surrounding neighbourhoods in Hertfordshire, positioned northwest of central London. It is a suburban district with mixed residential character, offering a balance of family housing and rental accommodation.
Average Property Price - WD18
£378,866
65
National percentile
12 month avg at 31 Aug 2026
Average Net Household Income - WD18
£44,438
74
National percentile
2023 census data
10-Year Annualised Price Growth - WD18
1.2%
10
National percentile
Estimate at 31 Aug 2026
10-Year Annualised Rent Growth - WD
3.4%
13
National percentile
Estimate at 31 Aug 2026