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9, THE KNOWLE, BASILDON, SS16 4BP - £158,000

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.

9 THE KNOWLE is a very large extended detached house of 245m², built sometime between 1950 and 1966, which could now be worth an estimated £802,882. It was last sold for £158,000 in March 1999, which was around 22% above the average March 1999 detached price in the Basildon local authority area. The most recent EPC inspection was April 2017, where the current energy rating was C, and the potential energy rating was B.

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9 THE KNOWLE Sold Prices

Land registry data shows one sale for 9 THE KNOWLE since 1st January 1995. The below table shows the price paid for the one sale, along with the average detached price in the Basildon local authority area for the corresponding sale date. The average price is sourced from the Office for National Statistics' House Price Index (HPI).

DatePriceHPI PriceVariation from HPI
1999
5 MAR
£158,000£129,823
up arrow
22% above HPI

What might 9 THE KNOWLE be worth now?

9 THE KNOWLE might now be worth an estimated £802,882.

This is based on house price inflation of 408.2%, between March 1999 and April 2026, for detached houses, in the Basildon local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 408.2% inflationary increase is applied to the most recent sale price for 9 THE KNOWLE of £158,000 on 5th March 1999. For the value to have increased from £158,000 to £802,882 over the 26 years and eleven months to April 2026, the following assumptions must hold true:

  • The value of 9 THE KNOWLE has moved in line with the HPI for detached houses in the Basildon local authority area.
  • The March 1999 sale price of £158,000 represented a fair market value for the property.
  • The size, condition, and specification of 9 THE KNOWLE has not materially changed since March 1999.
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 9 THE KNOWLE?

9 THE KNOWLE is 245m², which includes three extensions, according to the EPC inspection conducted in April 2017. This puts it in the largest 10% of detached houses in Basildon, based on EPC data. The below chart shows the distribution of detached houses by size in Basildon, and where 9 THE KNOWLE lies on this distribution: 99% of detached houses are smaller than 9 THE KNOWLE, and 1% of detached houses are larger. Note that EPC data is not available for all properties in Basildon.

9, THE KNOWLE, BASILDON, SS16 4BP: Size of property relative to detached houses in Basildon

9 THE KNOWLE: Plot

9 THE KNOWLE sits on a plot of roughly 0.247 of an acre, or 998m².

Where is 9 THE KNOWLE?

9 THE KNOWLE is located in BASILDON, in the SS16 postcode district.

All property sales on THE KNOWLE

Most recent sales first:

Full data available
2019
23 AUG
£435,000
Full data available
2018
16 NOV
£428,000
Full data available
2018
19 JUN
£467,500
Full data available
2017
1 DEC
£417,000
Full data available
2016
29 MAR
£430,000
Full data available
2014
5 DEC
£312,500
Full data available
2008
17 OCT
£300,000
Full data available
2007
18 JAN
£277,000
Limited data available
2005
22 NOV
£298,500
Limited data available
2005
7 OCT
£305,000
Full data available
2005
3 JUN
£285,000
Limited data available
2004
25 JUN
£325,000
Limited data available
2002
9 DEC
£267,000
Limited data available
2002
30 SEP
£275,000
Full data available
2001
9 JUL
£230,000
Limited data available
1999
5 MAR
£158,000
Limited data available
1998
17 JUL
£145,000
Full data available
1995
1 JUN
£129,500
Limited data available
1995
5 MAY
£110,000
Limited data available
1995
5 MAY
£60,000
Source: HM Land Registry Price Paid Data
Licence: Contains HM Land Registry data © Crown copyright and database right 2026. 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 2026. This data is licensed under the Open Government Licence v3.0.
Source: Energy Performance of Buildings Data: England and Wales
Licence: Ordnance Survey and Royal Mail Copyright and Database Right Notice.
Licence: Open Government Licence v3.0.
Source: INSPIRE Polygons
Copyright statement: This information is subject to Crown copyright and database rights 2026 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 2026 Ordnance Survey 100026316. Conditions of use.
Licence: Open Government Licence v3.0.