The average Mid Sussex home lost £6,592 in a month to £426,441, the steepest monthly fall of the seven West Sussex districts. Crawley is up 4.5%.

The average Mid Sussex home was worth £426,441 in June 2026, down £6,592 on May and down 0.9% over twelve months, according to the UK House Price Index published by HM Land Registry.

That 1.5% monthly drop is the steepest of the seven West Sussex districts. It also marks a turn: on the annual measure Mid Sussex was still rising in May, and is now falling.

Two things to hold in mind before reading anything into the number. The UKHPI average is a mean, not a median, so a handful of expensive sales moves it. And the index is revised: May was first published at £430,711 and has since been revised up to £433,033, which is why the monthly fall looks larger than it did a month ago.

Mid Sussex against its neighbours

District Average, June 2026 Change on May Change on the year
Crawley £338,311 +0.9% +4.5%
Arun £321,927 +0.3% +3.1%
Adur £380,031 +1.8% +1.8%
Horsham £436,940 -0.4% -0.2%
Mid Sussex £426,441 -1.5% -0.9%
Chichester £429,978 -0.9% -2.3%
Worthing £296,227 -0.9% -5.1%
West Sussex £372,660 -0.3% 0.0%
England £293,262 +0.2% +1.8%

The comparison worth sitting with is Crawley. It is the cheapest district in West Sussex, it is twenty minutes up the A23, and it is the fastest riser in the county at 4.5% a year while Mid Sussex falls. Horsham, the district Mid Sussex most resembles on price, is close to flat.

Mid Sussex remains £133,179 dearer than the England average, so this is a correction from a high base rather than a slump.

Annual house price change by West Sussex district, June 2026 Diverging bars showing the twelve-month change to June 2026. Worthing minus 5.1 per cent, Chichester minus 2.3, Mid Sussex minus 0.9, Horsham minus 0.2, West Sussex zero, Adur plus 1.8, England plus 1.8, Arun plus 3.1, Crawley plus 4.5. Four of the seven West Sussex districts are falling and three are rising. Four West Sussex districts falling, three rising, Mid Sussex in the middle Change in average price over twelve months to June 2026. Source: HM Land Registry UK House Price Index, read 21 August 2026. no change Worthing -5.1%

Chichester -2.3%

Mid Sussex -0.9%

Horsham -0.2%

West Sussex 0.0%

Adur +1.8%

England +1.8%

Arun +3.1%

Crawley +4.5% West Sussex and England are shown in grey for reference. UKHPI averages are means, not medians, and earlier months are revised. Graphic by Mid Sussex News

The fall is at the top and the bottom, not the middle

Split by property type, the district’s twelve-month change is uneven:

Type Average, June 2026 Change on the year
Detached £724,219 -1.7%
Semi-detached £447,171 +0.1%
Terraced £363,789 0.0%
Flat or maisonette £216,584 -2.3%

Detached homes and flats are carrying the whole of the fall. Semis and terraces are flat to the nearest tenth of a percent. That is a familiar pattern in a district like this one: the £700,000-plus market and the town-centre flat market are the two that move first, and the family houses in between are the ones people actually have to buy and sell whatever the market is doing.

The first-time buyer average is £323,067, down 0.6% on the year. Nationally the first-time buyer average rose 1.8%, so entry-level Mid Sussex has become slightly cheaper relative to the rest of England over twelve months.

What it means for you

  • If you are selling a detached house, the district average for that type has fallen by around £12,500 over twelve months on these figures. Price against recent local sales, not against last summer.
  • If you are buying a flat, the average is down 2.3% and is the weakest segment in the district. Flats are also the type where a single unusual sale distorts a monthly average most.
  • If you are a first-time buyer, £323,067 is the district average paid, and it has moved very little in either direction for a year.
  • Do not read one month as a trend. June’s figure will itself be revised, and May’s already has been, upwards by £2,322.

Ward-level median sold prices for all 25 Mid Sussex wards, which are a better guide to what an ordinary home costs in a particular town or village, are on our Mid Sussex house prices page.

Sources