Area guide
Everything you need to know about buying property in the SO18 postcode area, covering Southampton and surrounding areas. All price data sourced from HM Land Registry — updated July 2026.
Average price
£174,782
Median price
£160,000
5-year trend
+37.2%
Total sales
20,941
The SO18 area has 820 individual postcodes with 20,941 registered sales. Prices are +56.0% below the national average, with the largest concentration in Southampton. The five-year price movement is +37.2%.
A major port city with a strong maritime economy, affordable housing relative to the South East and direct trains to London Waterloo.
🚆 Main station
Southampton Central
⏱️ London commute
~80 min by train
🏫 Notable school
King Edward VI School (Outstanding)
SO18 averages £174,782, placing it in the affordable category, +56.0% below the national average. Affordable areas can offer good value for first-time buyers and investors seeking lower entry points. The dataset includes 20,941 recorded sales across 820 postcodes.
The five-year price trend in SO18 is +37.2%, significantly outpacing many other areas. This level of growth may reflect improving local amenities, transport links or broader regeneration.
SO18 3NF
£128,368 avg · 231 sales
SO18 3LZ
£119,228 avg · 151 sales
SO18 1UD
£73,538 avg · 150 sales
SO18 1HJ
£166,211 avg · 146 sales
SO18 3QB
£108,960 avg · 146 sales
SO18 6TX
£75,476 avg · 146 sales
SO18 1GS
£128,870 avg · 143 sales
SO18 1UG
£114,563 avg · 140 sales
SO18 3LY
£129,221 avg · 140 sales
This SO18 area guide is based on HM Land Registry Price Paid Data, covering registered residential property sales in England and Wales from January 1995 onwards. All figures are historical sold prices, not current valuations or asking prices.
Data last updated: July 2026 · View methodology
The average sold price in the SO18 postcode area is £174,782, based on 20,941 HM Land Registry transactions. The largest town in this area is Southampton.
Properties in SO18 average £174,782, which is +56.0% below the national average of £396,803 for England and Wales.
The median price (£160,000) is 8.5% below the average (£174,782), suggesting a mix of property types or a few high-value sales pulling the mean upward. This is common in areas with both affordable and premium housing.
Prices in SO18 have moved +37.2% over five years, reflecting broader UK house price growth. The large sample size gives confidence in this trend.
No. All figures on this page are historical completed sale prices from HM Land Registry Price Paid Data. They are not current valuations, estate agent asking prices, or financial advice. Always seek professional advice before making property decisions.
Asking Price vs Sold Price in the UK
Understand the difference between asking prices and actual sold prices.
How to Use Sold Prices When Making an Offer
Use sold-price evidence to prepare for a UK property offer.
Down Valuations: What to Do
Respond to a low mortgage valuation with local sold-price evidence.
View all guides →