KNOWLEY HOUSE, GUILDFORD AVENUE, CHORLEY, PR6 8TG - £550,000

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.

KNOWLEY HOUSE is a very large detached house of 162m², built sometime between 1983 and 1990, which could now be worth an estimated £551,065. It was last sold for £550,000 in March 2025, which was around 66% above the average March 2025 detached price in the Chorley local authority area. The most recent EPC inspection was July 2023, where the current energy rating was C, and the potential energy rating was C.

KNOWLEY HOUSE Sold Prices

Land registry data shows two sales for KNOWLEY HOUSE since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Chorley local authority area for the corresponding sale date. Both of the two KNOWLEY HOUSE sales were 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
2025 24 MAR	£550,000	£330,898	66% above HPI
2019 5 JUL	£480,000	£259,077	85% above HPI

KNOWLEY HOUSE Price Paid vs. HPI Average

The below graph shows the average detached house price in the Chorley local authority area over time, sourced from the HPI. The two KNOWLEY HOUSE sales from July 2019 and March 2025 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 July 2019 sale was for 85% above the HPI. So the extrapolation line tracks at 85% above the HPI over time, until the March 2025 sale, where it falls to 66% above the HPI. The line then continues to track at 66% above the HPI.

What might KNOWLEY HOUSE be worth now?

KNOWLEY HOUSE might now be worth an estimated £551,065.

This is based on house price inflation of 0.2%, between March 2025 and August 2025, for detached houses, in the Chorley local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 0.2% inflationary increase is applied to the most recent sale price for KNOWLEY HOUSE of £550,000 on 24th March 2025. For the value to have increased from £550,000 to £551,065 over the seven months to August 2025, the following assumptions must hold true:

• The value of KNOWLEY HOUSE has moved in line with the HPI for detached houses in the Chorley local authority area.
• The March 2025 sale price of £550,000 represented a fair market value for the property.
• The size, condition, and specification of KNOWLEY HOUSE has not materially changed since March 2025.

How Large is KNOWLEY HOUSE?

KNOWLEY HOUSE is 162m² according to the EPC inspection conducted in July 2023. This puts it in the largest 20% of detached houses houses in Chorley, based on EPC data. The below chart shows the distribution of detached houses houses by size in Chorley, and where KNOWLEY HOUSE lies on this distribution: 88% of detached houses houses are smaller than KNOWLEY HOUSE, and 12% of houses are larger. Note that EPC data is not available for all properties in Chorley.

KNOWLEY HOUSE: Plot and Title Map

KNOWLEY HOUSE sits on a plot of roughly 0.308 of an acre, or 1,245m². The below map shows the location of KNOWLEY HOUSE, 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 KNOWLEY HOUSE). 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 KNOWLEY HOUSE?

KNOWLEY HOUSE is located on GUILDFORD AVENUE in CHORLEY, in the PR6 postcode district. The below map shows the position of KNOWLEY HOUSE on GUILDFORD AVENUE.