18, MARDLEY HILL, WELWYN, AL6 0TN - £830,000

Based on the August 2024 Price Paid Data (released on 27th September 2024), the July 2024 House Price Index (released on 18th September 2024), and the August 2024 Energy Performance of Buildings Data (released on 3rd October 2024). Sources

18 MARDLEY HILL is a large extended detached house of 180m², built sometime between 1950 and 1966. It was last sold for £830,000 in August 2020, which was around 1% above the average August 2020 detached price in the Welwyn Hatfield local authority area. The most recent EPC inspection was March 2020, where the current energy rating was D, and the potential energy rating was C.

18 MARDLEY HILL Sold Prices

Land registry data shows two sales for 18 MARDLEY HILL since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Welwyn Hatfield local authority area for the corresponding sale date. One of the two 18 MARDLEY HILL sales was for above the average price, whilst the other was for 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
2020 14 AUG	£830,000	£821,942	1% above HPI
2010 22 SEP	£525,000	£545,495	4% below HPI

18 MARDLEY HILL Price Paid vs. HPI Average

The below graph shows the average detached house price in the Welwyn Hatfield local authority area over time, sourced from the HPI. The two 18 MARDLEY HILL sales from September 2010 and August 2020 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 September 2010 sale was for 4% below the HPI. So the extrapolation line tracks at 4% below the HPI over time, until the August 2020 sale, where it rises to 1% above the HPI. The line then continues to track at 1% above the HPI.

How Large is 18 MARDLEY HILL?

18 MARDLEY HILL is 180m², which includes two extensions, according to the EPC inspection conducted in March 2020. This puts it in the largest 40% of detached houses in Oaklands, based on EPC data. The below chart shows the distribution of detached houses by size in Oaklands, and where 18 MARDLEY HILL lies on this distribution: 64% of detached houses are smaller than 18 MARDLEY HILL, and 36% of houses are larger. Note that EPC data is not available for all properties in Oaklands.

18 MARDLEY HILL: Plot and Title Map

18 MARDLEY HILL sits on a plot of roughly 0.198 of an acre, or 800m². The below map shows the location of 18 MARDLEY HILL, 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 18 MARDLEY HILL). 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 18 MARDLEY HILL?

18 MARDLEY HILL is located in WELWYN, in the AL6 postcode district. The below map shows the position of No. 18 on MARDLEY HILL.