13, HAY WAINS, WOOLMER GREEN, KNEBWORTH, SG3 6HW - £225,000

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.

13 HAY WAINS is a very small terraced house of 55m², built sometime between 2003 and 2006, which could now be worth an estimated £393,937. It was last sold for £225,000 in October 2007, which was about the average October 2007 terraced price in the Welwyn Hatfield local authority area. The most recent EPC inspection was July 2025, where the current energy rating was C, and the potential energy rating was B.

13 HAY WAINS Sold Prices

Land registry data shows two sales for 13 HAY WAINS since 1^st January 1995. The below table shows the price paid for the two sales, along with the average terraced price in the Welwyn Hatfield local authority area for the corresponding sale date. One of the two 13 HAY WAINS sales was roughly equal to the average price, whilst the other was for above 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
2007 26 OCT	£225,000	£224,112	Close to HPI
2003 24 OCT	£196,000	£172,316	14% above HPI

13 HAY WAINS Price Paid vs. HPI Average

The below graph shows the average terraced house price in the Welwyn Hatfield local authority area over time, sourced from the HPI. The two 13 HAY WAINS sales from October 2003 and October 2007 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 October 2003 sale was for 14% above the HPI. So the extrapolation line tracks at 14% above the HPI over time, until the October 2007 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 13 HAY WAINS be worth now?

13 HAY WAINS might now be worth an estimated £393,937.

This is based on house price inflation of 75.1%, between October 2007 and July 2025, for terraced houses, in the Welwyn Hatfield local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 75.1% inflationary increase is applied to the most recent sale price for 13 HAY WAINS of £225,000 on 26th October 2007. For the value to have increased from £225,000 to £393,937 over the eighteen years and three months to July 2025, the following assumptions must hold true:

• The value of 13 HAY WAINS has moved in line with the HPI for terraced houses in the Welwyn Hatfield local authority area.
• The October 2007 sale price of £225,000 represented a fair market value for the property.
• The size, condition, and specification of 13 HAY WAINS has not materially changed since October 2007.

How Large is 13 HAY WAINS?

13 HAY WAINS is 55m² according to the EPC inspection conducted in July 2025. This puts it in the smallest 10% of terraced houses houses in Woolmer Green, based on EPC data. The below chart shows the distribution of terraced houses houses by size in Woolmer Green, and where 13 HAY WAINS lies on this distribution: Less than 1% of terraced houses houses are smaller than 13 HAY WAINS, and more than 99% of houses are larger. Note that EPC data is not available for all properties in Woolmer Green.

13 HAY WAINS: Plot and Title Map

13 HAY WAINS sits on a plot of roughly 0.026 of an acre, or 105m². The below map shows the location of 13 HAY WAINS, 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 13 HAY WAINS). 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 13 HAY WAINS?

13 HAY WAINS is located in WOOLMER GREEN, in the SG3 postcode district. The below map shows the position of No. 13 on HAY WAINS.