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
200, Castle Street, Portchester, PO16 9QL	17 Dec 2025	£580,000	146 m² 1571 sqft	£3,972 £369	Terrace (3 bed)
112, Castle Street, Portchester, PO16 9QG -	15 Aug 2025	£588,000	156 m² 1679 sqft	£3,769 £350	Semi-D (4 bed)
142, Castle Street, Portchester, PO16 9QH -	06 Mar 2025	£428,000	93 m² 1001 sqft	£4,602 £427	Semi-D (3 bed)
69, Castle Street, Portchester, PO16 9QQ -	30 Jan 2025	£428,000	119 m² 1280 sqft	£3,596 £334	Terrace (3 bed)
82, Castle Street, Portchester, PO16 9QG -	27 Nov 2024	£385,000	109 m² 1173 sqft	£3,532 £328	Detached (3 bed)
128, Castle Street, Portchester, PO16 9QH -	06 Sep 2024	£370,000	78 m² 839 sqft	£4,743 £440	Terrace (2 bed)
67, Castle Street, Portchester, PO16 9QQ -	19 Sep 2023	£380,000	92 m² 990 sqft	£4,130 £383	Terrace (4 bed)
189, Castle Street, Portchester, PO16 9QX -	03 Aug 2023	£750,000	206 m² 2217 sqft	£3,640 £338	Terrace (3 bed)
Flat 1 89, Castle Street, Portchester, PO16 9QQ	11 Jul 2023	£60,000 B	80 m² 861 sqft	£750 £69	Flat
Flat 2 89, Castle Street, Portchester, PO16 9QQ	11 Jul 2023	£60,000 B	71 m² 764 sqft	£845 £78	Flat
83, Castle Street, Portchester, PO16 9QQ -	02 Jun 2023	£915,000	189 m² 2034 sqft	£4,841 £449	Detached (4 bed)
146a, Castle Street, Portchester, PO16 9QH -	26 May 2023	£377,500	99 m² 1065 sqft	£3,813 £354	Semi-D (3 bed)
110a, Castle Street, Portchester, PO16 9QG -	03 Mar 2023	£500,000	150 m² 1614 sqft	£3,333 £309	Semi-D (3 bed)
Flat 5 Boxtree Court, Castle Street, Portchester, PO16 9QA	30 Aug 2022	£215,000	59 m² 635 sqft	£3,644 £338	Flat (1 bed)
123, Castle Street, Portchester, PO16 9QX -	06 Jun 2022	£318,000	84 m² 904 sqft	£3,785 £351	Terrace (2 bed)
118, Castle Street, Portchester, PO16 9QH -	17 Mar 2022	£915,000			Detached (5 bed)
71, Castle Street, Portchester, PO16 9QQ -	24 Feb 2022	£391,000	118 m² 1270 sqft	£3,313 £307	Terrace (4 bed)
White Hart, Castle Street, Portchester, PO16 9QQ	31 Jan 2022	£650,000 B			Other
154, Castle Street, Portchester, PO16 9QH -	28 Jan 2022	£450,000	91 m² 979 sqft	£4,945 £459	Semi-D (3 bed)
168, Castle Street, Portchester, PO16 9QH -	23 Sep 2021	£355,000			Terrace (4 bed)
175, Castle Street, Portchester, PO16 9QX	06 Sep 2021	£370,000 B	110 m² 1184 sqft	£3,363 £312	Detached (2 bed)
135a, Castle Street, Portchester, PO16 9QX -	17 Dec 2020	£390,000	122 m² 1313 sqft	£3,196 £296	Semi-D (3 bed)
Flat 1 Boxtree Court, Castle Street, Portchester, PO16 9QA -	20 Nov 2020	£165,000 B	134 m² 1442 sqft	£1,231 £114	Flat (1 bed)
174, Castle Street, Portchester, PO16 9QH -	20 Aug 2020	£1,090,000			Detached
116, Castle Street, Portchester, PO16 9QH -	24 Mar 2020	£280,000	60 m² 645 sqft	£4,666 £433	Semi-D (3 bed)
106, Castle Street, Portchester, PO16 9QG -	24 Jan 2020	£499,000	149 m² 1603 sqft	£3,348 £311	Detached (4 bed)
130, Castle Street, Portchester, PO16 9QH -	10 Jan 2020	£250,000	74 m² 796 sqft	£3,378 £313	Terrace (2 bed)
121, Castle Street, Portchester, PO16 9QX -	10 Sep 2019	£230,000	73 m² 785 sqft	£3,150 £292	Terrace (2 bed)
98, Castle Street, Portchester, PO16 9QG -	15 Mar 2019	£340,000	119 m² 1280 sqft	£2,857 £265	Semi-D (3 bed)
145, Castle Street, Portchester, PO16 9QX -	15 Mar 2019	£345,000	92 m² 990 sqft	£3,750 £348	Terrace (3 bed)
200, Castle St	£580,000 Dec-2025	146 1571	3,972 369
112, Castle St -	£588,000 Aug-2025	156 1679	3,769 350
142, Castle St -	£428,000 Mar-2025	93 1001	4,602 427
69, Castle St -	£428,000 Jan-2025	119 1280	3,596 334
82, Castle St -	£385,000 Nov-2024	109 1173	3,532 328
128, Castle St -	£370,000 Sep-2024	78 839	4,743 440
67, Castle St -	£380,000 Sep-2023	92 990	4,130 383
189, Castle St -	£750,000 Aug-2023	206 2217	3,640 338
Flat 1 89, Castle St	£60,000 B Jul-2023	80 861	750 69
Flat 2 89, Castle St	£60,000 B Jul-2023	71 764	845 78
83, Castle St -	£915,000 Jun-2023	189 2034	4,841 449
146a, Castle St -	£377,500 May-2023	99 1065	3,813 354
110a, Castle St -	£500,000 Mar-2023	150 1614	3,333 309
Flat 5 Boxtree Court, Castle St	£215,000 Aug-2022	59 635	3,644 338
123, Castle St -	£318,000 Jun-2022	84 904	3,785 351
118, Castle St -	£915,000 Mar-2022
71, Castle St -	£391,000 Feb-2022	118 1270	3,313 307
White Hart, Castle St	£650,000 B Jan-2022
154, Castle St -	£450,000 Jan-2022	91 979	4,945 459
168, Castle St -	£355,000 Sep-2021
175, Castle St	£370,000 B Sep-2021	110 1184	3,363 312
135a, Castle St -	£390,000 Dec-2020	122 1313	3,196 296
Flat 1 Boxtree Court, Castle St -	£165,000 B Nov-2020	134 1442	1,231 114
174, Castle St -	£1,090,000 Aug-2020
116, Castle St -	£280,000 Mar-2020	60 645	4,666 433
106, Castle St -	£499,000 Jan-2020	149 1603	3,348 311
130, Castle St -	£250,000 Jan-2020	74 796	3,378 313
121, Castle St -	£230,000 Sep-2019	73 785	3,150 292
98, Castle St -	£340,000 Mar-2019	119 1280	2,857 265
145, Castle St -	£345,000 Mar-2019	92 990	3,750 348

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 £3,883 sqm (£360 per sq ft), this is calculated from sold house prices of the 14 most recent sales.
The majority of homes in Fareham are now selling for between £3,510 and £4,760 per square metre (£326 and £442 per square foot) , find out more in this local analysis of PO16 9 (Fareham) house prices.
There are roughly 95 homes on Castle Street, we would have expected roughly 13 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 14 property sales in Castle Street, averaging approximately 3 home sales per year .
The average size of all the properties on Castle Street is 114 m2 (1,227 sqft).