Property Data Search:

25, SIDMOUTH AVENUE, PORTSMOUTH, PO3 6LJ - £440,000

The information on this page is based on a number of underlying datasets, most of which are updated monthly. We maintain an update schedule which explains which version of each dataset we are currently relying on.

25 SIDMOUTH AVENUE is a midsized detached house of 109m², built sometime between 1930 and 1949, which could now be worth an estimated £426,391. It was last sold for £440,000 in October 2022, which was around 17% below the average October 2022 detached price in the Portsmouth local authority area. The most recent EPC inspection was September 2013, where the current energy rating was E, and the potential energy rating was B.

25 SIDMOUTH AVENUE Sold Prices

Land registry data shows two sales for 25 SIDMOUTH AVENUE since 1st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Portsmouth local authority area for the corresponding sale date. Both of the two 25 SIDMOUTH AVENUE sales were for below the average price. The average price is sourced from the Office for National Statistics' House Price Index (HPI).

DatePriceHPI PriceVariation from HPI
2022
28 OCT
£440,000£532,519
down arrow
17% below HPI
2000
9 JUN
£102,000£160,211
down arrow
36% below HPI

25 SIDMOUTH AVENUE Price Paid vs. HPI Average

The below graph shows the average detached house price in the Portsmouth local authority area over time, sourced from the HPI. The two 25 SIDMOUTH AVENUE sales from June 2000 and October 2022 have been plotted on the graph. A line has been extrapolated to show what the value of the property might have been over time, following each sale, had it maintained the same margin above or below the HPI (as a percentage). For example, the June 2000 sale was for 36% below the HPI. So the extrapolation line tracks at 36% below the HPI over time, until the October 2022 sale, where it rises to 17% below the HPI. The line then continues to track at 17% below the HPI.

25, SIDMOUTH AVENUE, PORTSMOUTH, PO3 6LJ: Price paid vs HM Land Registry's House Price Index

What might 25 SIDMOUTH AVENUE be worth now?

25 SIDMOUTH AVENUE might now be worth an estimated £426,391.

This is based on house price deflation of 3.1%, between October 2022 and February 2025, for detached houses, in the Portsmouth local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 3.1% deflationary decrease is applied to the most recent sale price for 25 SIDMOUTH AVENUE of £440,000 on 28th October 2022. For the value to have decreased from £440,000 to £426,391 over the three years and eight months to February 2025, the following assumptions must hold true:

  • The value of 25 SIDMOUTH AVENUE has moved in line with the HPI for detached houses in the Portsmouth local authority area.
  • The October 2022 sale price of £440,000 represented a fair market value for the property.
  • The size, condition, and specification of 25 SIDMOUTH AVENUE has not materially changed since October 2022.
Disclaimer: Please note that this is a theoretical estimate based on assumptions which may or may not be correct. It should not be relied on for any purpose.

How Large is 25 SIDMOUTH AVENUE?

25 SIDMOUTH AVENUE is 109m² according to the EPC inspection conducted in September 2013. This puts it in the smallest 50% of detached houses houses in Portsmouth, based on EPC data. The below chart shows the distribution of detached houses houses by size in Portsmouth, and where 25 SIDMOUTH AVENUE lies on this distribution: 41% of detached houses houses are smaller than 25 SIDMOUTH AVENUE, and 59% of houses are larger. Note that EPC data is not available for all properties in Portsmouth.

25, SIDMOUTH AVENUE, PORTSMOUTH, PO3 6LJ: Size of property relative to detached houses houses in Portsmouth

25 SIDMOUTH AVENUE: Plot and Title Map

25 SIDMOUTH AVENUE sits on a plot of roughly 0.071 of an acre, or 289m². The below map shows the location of 25 SIDMOUTH AVENUE, an approximate outline of the building(s), and the indicative extent of the property. The plot extent is a Land Registry INSPIRE Index Polygon, and it is important to note that a title may include more than one polygon, whereas only one polygon is shown on the map (the polygon which intersects with the position of 25 SIDMOUTH AVENUE). The full extent of the land contained in any registered title can only be identified from the individual title plan. The maps on this page should not be relied upon to establish the extent of a title.

25, SIDMOUTH AVENUE, PORTSMOUTH, PO3 6LJ: Plot and title map

Where is 25 SIDMOUTH AVENUE?

25 SIDMOUTH AVENUE is located in PORTSMOUTH, in the PO3 postcode district. The below map shows the position of No. 25 on SIDMOUTH AVENUE.

25, SIDMOUTH AVENUE, PORTSMOUTH, PO3 6LJ: Location map and indicative extent of plot

All property sales on SIDMOUTH AVENUE

Most recent sales first:

Limited data available
2023
19 MAY
£290,000
Full data available
2022
28 OCT
£440,000
Limited data available
2022
22 JUL
£308,000
Limited data available
2020
3 AUG
£252,500
Full data available
2019
12 JUN
£280,000
Full data available
2013
15 MAR
£191,000
Limited data available
2013
8 MAR
£173,000
Full data available
2012
8 JUN
£204,000
Limited data available
2011
18 NOV
£195,000
Limited data available
2009
21 DEC
£194,200
Full data available
2009
11 DEC
£191,000
Limited data available
2007
5 JAN
£210,000
Limited data available
2005
16 SEP
£187,000
Full data available
2005
27 JUL
£170,000
Limited data available
2001
11 MAY
£111,000
Limited data available
2001
11 MAY
£95,000
Full data available
2000
9 JUN
£102,000
Full data available
1998
10 SEP
£79,500
Full data available
1997
14 AUG
£77,000
Limited data available
1996
20 DEC
£53,995
Limited data available
1996
12 JAN
£58,500
Full data available
1995
27 OCT
£64,000
Full data available
1995
26 MAY
£65,000
Source: HM Land Registry Price Paid Data
Licence: Contains HM Land Registry data © Crown copyright and database right 2025. This data is licensed under the Open Government Licence v3.0.
Source: HM Land Registry UK House Price Index
Licence: Contains HM Land Registry data © Crown copyright and database right 2025. This data is licensed under the Open Government Licence v3.0.
Copyright statement: This information is subject to Crown copyright and database rights 2025 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2025 Ordnance Survey 100026316. Conditions of use.