How much do houses cost in SO20 6BY?

The average property price in SO20 6BY is currently around £365k.

What is the population of SO20 6BY?

The population for the SO20 6BY area is approximately 521 residents according to the latest census data.

Postcode Analysis Test Valley, South East

SANDY DOWN, SO20 6BY House Prices & Local Information

Comprehensive demographic deep-dive and infrastructure audit for SANDY DOWN, SO20 6BY.

analytics Demographics: Census 2021 local_police Crime: police.uk · updated monthly (1–2 month lag)home Prices: Land Registry

groups

Population

521

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Avg Age

payments

Avg Income

£ 54,900 /yr

work

Employed

53%

Neighbourhood Index

infoHow calculated?

Score 1–10 — how this postcode ranks nationally (10 = top 10%)

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Index Insight: SO20 6BY is ranked in the top 20% nationally for affluence, indicating a high-income demographic. It scores highly on the family-friendly index, suggesting a strong presence of family households and good proximity to schools. The area also shows excellent employment metrics, indicating a highly economically active population.

shieldSafety

10/10

family_restroomFamily

9/10

favoriteHealth

1/10

workEmployment

8/10

diversity_3Diversity

3/10

paymentsAffluence

9/10

directions_transitTransit

1/10

homeHome Ownership

5/10

trending_upInvestment

8/10

psychology

Area Character

Families dominate this postcode. With 57% owner-occupation and average age 44, SO20 6BY has the community stability of a well-balanced, mid-career demographic. £365k median prices reflect the premium buyers pay for this family-friendly stability.

home £365,000 median price shield Safety 10/10

verifiedPublished by PostcodeInfo.uk · April 2026 · Sources: ONS Census 2021, police.uk, Land Registry

SO20 6BY is a mixed residential area on Sandy Down in Test Valley. Administratively it sits within Blackwater ward and the Romsey and Southampton North constituency.

This is a well-established rental postcode — a spacious suburb popular with older working households approaching retirement. The daytime character shifts — includes some mining and quarrying and other industrial activity. The 44 average age reflects a mixed, mid-career community — settling down but not yet slowing down. 42% of homes are privately rented — a strong rental market with good supply for incoming tenants.

Property: Average house prices are around £365k.

Census 2021 statistics for SO20 6BY are sourced from Output Area E00117806 (shared with 35 postcodes in this micro-neighbourhood). Property prices come from HM Land Registry.

mapGeographic Location

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Demographic Deep-Dive

The Census 2021 data below shows the full population breakdown for SO20 6BY. The average age is 43.7. Figures are sourced from the Office for National Statistics and cover ethnicity, age, religion, education, occupation, housing tenure, and more.

Ethnicity Profile

White / British98.7%

Asian / British Asian0.0%

Black / African / Caribbean0.0%

Other / Mixed1.3%

Economic Activity

53%Active

FT: 36%

Unemployed: 1%

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Community Makeup: A balanced, mature neighborhood. The average age points to a solid foundation of mid-career individuals.

analytics Full Demographics Profile

home Property Prices by Type

Semi-Detached

£ 365,000

1 sales · Mean £ 365,000

storefront Nearby Amenities

restaurant

Restaurant, Cafe

2 nearby

Kitchen Cafe0.0 km
Leckford Lodges And Camping0.9 km

train Transport Links

Train Stations

Winchester10.3 km
Andover11.2 km
Mottisfont & Dunbridge11.5 km