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4, MILL STREET, UPTON, NORTHAMPTON, NN5 4DH - £189,950

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.

4 MILL STREET is a very small detached house of 42m², which could now be worth an estimated £352,058. It was last sold for £189,950 in January 2009, which was around 26% below the average January 2009 detached price in the West Northamptonshire local authority area. The most recent EPC inspection was December 2008, where the current energy rating was B, and the potential energy rating was B.

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4 MILL STREET Sold Prices

Land registry data shows one sale for 4 MILL STREET since 1st January 1995. The below table shows the price paid for the one sale, along with the average detached price in the West Northamptonshire 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
2009
23 JAN
£189,950£255,615
down arrow
26% below HPI

What might 4 MILL STREET be worth now?

4 MILL STREET might now be worth an estimated £352,058.

This is based on house price inflation of 85.3%, between January 2009 and May 2026, for detached houses, in the West Northamptonshire local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 85.3% inflationary increase is applied to the most recent sale price for 4 MILL STREET of £189,950 on 23rd January 2009. For the value to have increased from £189,950 to £352,058 over the sixteen years and eight months to May 2026, the following assumptions must hold true:

  • The value of 4 MILL STREET has moved in line with the HPI for detached houses in the West Northamptonshire local authority area.
  • The January 2009 sale price of £189,950 represented a fair market value for the property.
  • The size, condition, and specification of 4 MILL STREET has not materially changed since January 2009.
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 4 MILL STREET?

4 MILL STREET is 42m² according to the EPC inspection conducted in December 2008. This puts it in the smallest 10% of detached houses in Northampton, based on EPC data. The below chart shows the distribution of detached houses by size in Northampton, and where 4 MILL STREET lies on this distribution: Less than 1% of detached houses are smaller than 4 MILL STREET, and more than 99% of detached houses are larger. Note that EPC data is not available for all properties in Northampton.

4, MILL STREET, UPTON, NORTHAMPTON, NN5 4DH: Size of property relative to detached houses in Northampton

4 MILL STREET: Plot

4 MILL STREET sits on a plot of roughly 0.039 of an acre, or 157m².

Where is 4 MILL STREET?

4 MILL STREET is located in UPTON, in the NN5 postcode district.

All property sales on MILL STREET

Most recent sales first:

Full data available
2025
7 MAR
£445,000
Full data available
2019
8 NOV
£250,000
Full data available
2019
25 OCT
£265,000
Limited data available
2010
26 MAR
£310,000
Full data available
2009
23 OCT
£315,000
Limited data available
2009
31 JUL
£207,100
Limited data available
2009
30 JUN
£224,950
Full data available
2009
22 MAY
£195,950
Limited data available
2009
23 JAN
£189,950
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.