11, PORTMARNOCK, WASHINGTON, NE37 1NY - £215,000

Based on the January 2025 Price Paid Data (released on 3rd March 2025), the December 2024 House Price Index (released on 19th February 2025), and the January 2025 Energy Performance of Buildings Data (released on 27th February 2025). Sources

11 PORTMARNOCK is a small extended detached house of 92m², built sometime between 1991 and 1995, which could now be worth an estimated £257,771. It was last sold for £215,000 in March 2021, which was about the average March 2021 detached price in the Sunderland local authority area. The most recent EPC inspection was April 2019, where the current energy rating was D, and the potential energy rating was B.

11 PORTMARNOCK Sold Prices

Land registry data shows five sales for 11 PORTMARNOCK since 1^st January 1995. The below table shows the price paid for the five sales, along with the average detached price in the Sunderland local authority area for the corresponding sale date. The five 11 PORTMARNOCK sales were a mix of roughly equal to the average price, above the average price, and below the average price. The average price is sourced from the Office for National Statistics' House Price Index (HPI).

Date	Price	HPI Price	Variation from HPI
2021 19 MAR	£215,000	£214,459	Close to HPI
2019 21 JUN	£210,000	£201,008	4% above HPI
2007 16 MAR	£184,500	£199,602	8% below HPI
2002 5 APR	£100,000	£101,323	1% below HPI
1995 25 AUG	£69,000	£69,606	1% below HPI

11 PORTMARNOCK Price Paid vs. HPI Average

The below graph shows the average detached house price in the Sunderland local authority area over time, sourced from the HPI. The five 11 PORTMARNOCK sales between August 1995 and March 2021 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 2019 sale was for 4% above the HPI. So the extrapolation line tracks at 4% above the HPI over time, until the March 2021 sale, where it falls to roughly the same level as the HPI. The line then continues to track in line with the HPI.

What might 11 PORTMARNOCK be worth now?

11 PORTMARNOCK might now be worth an estimated £257,771.

This is based on house price inflation of 19.9%, between March 2021 and December 2024, for detached houses, in the Sunderland local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 19.9% inflationary increase is applied to the most recent sale price for 11 PORTMARNOCK of £215,000 on 19th March 2021. For the value to have increased from £215,000 to £257,771 over the two years and three months to December 2024, the following assumptions must hold true:

• The value of 11 PORTMARNOCK has moved in line with the HPI for detached houses in the Sunderland local authority area.
• The March 2021 sale price of £215,000 represented a fair market value for the property.
• The size, condition, and specification of 11 PORTMARNOCK has not materially changed since March 2021.

How Large is 11 PORTMARNOCK?

11 PORTMARNOCK is 92m², which includes two extensions, according to the EPC inspection conducted in April 2019. This puts it in the smallest 30% of detached houses houses in Washington, based on EPC data. The below chart shows the distribution of detached houses houses by size in Washington, and where 11 PORTMARNOCK lies on this distribution: 20% of detached houses houses are smaller than 11 PORTMARNOCK, and 78% of houses are larger. Note that EPC data is not available for all properties in Washington.

11 PORTMARNOCK: Plot and Title Map

11 PORTMARNOCK sits on a plot of roughly 0.059 of an acre, or 239m². The below map shows the location of 11 PORTMARNOCK, 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 11 PORTMARNOCK). 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.

Where is 11 PORTMARNOCK?

11 PORTMARNOCK is located in WASHINGTON, in the NE37 postcode district. The below map shows the position of No. 11 on PORTMARNOCK.