At a Glance
Average Property Price - SO21
£660,343
94
National percentile
12 month avg at 31 Jul 2026
Average Monthly Rent - SO
£1,272
67
National percentile
Estimate at 31 Jul 2026
Average Net Household Income - SO21
£50,587
90
National percentile
2023 census data
Flat / Maisonette Yield - SO
6.2%
66
National percentile
Estimate at 31 Jul 2026
10-Year Annualised Price Growth - SO21
2.6%
32
National percentile
Estimate at 31 Jul 2026
10-Year Annualised Rent Growth - SO
3.7%
38
National percentile
Estimate at 31 Jul 2026
Street Rankings — SO21
Top 5 streets in SO21 ranked by 3-year average sale price.
| # | Street | 3Y Avg |
|---|---|---|
| 1 | Clease Way | £2,800,000 |
| 2 | Lower Chilland Lane | £2,017,420 |
| 3 | Malthouse Close | £1,900,000 |
| 4 | Cliff Way | £1,875,000 |
| 5 | Fairfield Road | £1,871,250 |
Highest Monthly Sales — SO21
The highest-value transaction recorded in SO21 for each of the last 5 months.
Property Price & Volume Trends
Properties in SO21 are among the most expensive nationally, with an average price of £742,000. Price growth over the past decade has been moderate at 3.9% per year, slightly below the national average pace. Transaction activity has eased in recent years, with 175 sales in the latest full year compared to a 10-year average of 245—a decline of around 29%.
Rent & Yield Trends
Average monthly rent across the broader SO postcode area stands at £1,254, positioning the area in the upper-middle range nationally. Rental growth over the past decade has been steady at 3.8% per year, in line with the national median. The flat yield has improved markedly to 5.9%, well above its 10-year average of 4.8%, reflecting the positive momentum in rental income relative to property valuations.
Income & Affordability Trends
Household incomes in SO21 are among the highest nationally, with an average of £50,587. However, purchase affordability has tightened: the price-to-income ratio now stands at 13.7x, up from 11.5x in 2016, indicating property has become less affordable relative to earnings. Rental affordability has similarly weakened, with the rent-to-income ratio rising from 28.4% to 29.9% over the same period.
Resident Demographic Profile
The population skews older than the national average, with 21.8% aged 65 and over compared to the national figure of 19.6%, while those aged 16–24 are noticeably underrepresented at 9.1%. Housing tenure reflects strong ownership patterns: 38.2% own outright and 31.4% own with a mortgage, together well above national norms. The workforce is dominated by professionals (27.8%) and managers (19.5%), significantly higher than national averages, whilst trades workers (7.8%) and elementary occupations (6.8%) are markedly less common.