Sort by Most recent sale Address Highest price Highest £ per sqm Largest area Smallest area	Last sold	Price paid	Floor area (m²) Floor area (sq ft)	£ per m² £ per sq ft	Type	Sold	m² sq ft	£/m² £/sq ft
25b, Castle Street, Portchester, PO16 9PY	14 Mar 2025	£300,000	113 m² 1216 sqft	£2,654 £246	Semi-D (3 bed)
33a, Castle Street, Portchester, PO16 9PY -	23 Nov 2020	£400,000	114 m² 1227 sqft	£3,508 £325	Semi-D (5 bed)
27, Castle Street, Portchester, PO16 9PY -	05 Jul 2019	£270,000	152 m² 1636 sqft	£1,776 £164	Semi-D (3 bed)
25a, Castle Street, Portchester, PO16 9PY	05 Jun 2019	£265,000	111 m² 1194 sqft	£2,387 £221	Semi-D (3 bed)
21, Castle Street, Portchester, PO16 9PY -	01 Nov 2018	£305,000	133 m² 1431 sqft	£2,293 £213	Terrace (3 bed)
23, Castle Street, Portchester, PO16 9PY -	05 May 2017	£258,000	103 m² 1108 sqft	£2,504 £232	Terrace (3 bed)
23a, Castle Street, Portchester, PO16 9PY	13 Apr 2017	£7,340 B			Other (2 bed)
35a, Castle Street, Portchester, PO16 9PY -	24 Jun 2016	£440,000	126 m² 1356 sqft	£3,492 £324	Detached (4 bed)
29, Castle Street, Portchester, PO16 9PY -	11 Dec 2015	£250,000	94 m² 1011 sqft	£2,659 £247	Semi-D (3 bed)
33, Castle Street, Portchester, PO16 9PY -	27 Nov 2014	£305,000	107 m² 1151 sqft	£2,850 £264	Semi-D (5 bed)
31, Castle Street, Portchester, PO16 9PY	20 Aug 2010	£305,000	113 m² 1216 sqft	£2,699 £250	Semi-D (5 bed)
29a, Castle Street, Portchester, PO16 9PY -	19 Sep 2003	£232,000	120 m² 1291 sqft	£1,933 £179	Terrace (5 bed)
25, Castle Street, Portchester, PO16 9PY -	27 Apr 2001	£65,000			Flat (2 bed)
35, Castle Street, Portchester, PO16 9PY	07 Jan 1997	£125,000			Detached (5 bed)
25b, Castle St	£300,000 Mar-2025	113 1216	2,654 246
33a, Castle St -	£400,000 Nov-2020	114 1227	3,508 325
27, Castle St -	£270,000 Jul-2019	152 1636	1,776 164
25a, Castle St	£265,000 Jun-2019	111 1194	2,387 221
21, Castle St -	£305,000 Nov-2018	133 1431	2,293 213
23, Castle St -	£258,000 May-2017	103 1108	2,504 232
23a, Castle St	£7,340 B Apr-2017
35a, Castle St -	£440,000 Jun-2016	126 1356	3,492 324
29, Castle St -	£250,000 Dec-2015	94 1011	2,659 247
33, Castle St -	£305,000 Nov-2014	107 1151	2,850 264
31, Castle St	£305,000 Aug-2010	113 1216	2,699 250
29a, Castle St -	£232,000 Sep-2003	120 1291	1,933 179
25, Castle St -	£65,000 Apr-2001
35, Castle St	£125,000 Jan-1997

The data above for Castle Street can be visualised as a scatter graph, this will show price trends over time.

The average price per square metre (per square foot) in Castle Street, Portchester is £3,599 sqm (£334 per sq ft), this is calculated from the price paid of the 5 most recent sales.
The majority of homes in Fareham are now selling for between £3,490 and £4,800 per square metre (£324 and £445 per square foot) , find out more in this local analysis of PO16 9 (Fareham) house prices.
There are roughly 37 homes on Castle Street, we would have expected about 5 sales each year given that in the UK people sell their homes on average once every 7 years.
In the last 4 years there have been 5 property sales in Castle Street, averaging about 1 home sales per year .
The average size of all the properties on Castle Street is 115 m2 (1,237 sqft).