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Property prices and recorded sales

NN1 1JS: 37 recorded property sales with dates, prices and address history. HM Land Registry records, not current valuations.

Need wider context? View the NN1 property report.

Latest recorded sale
12 June 2026
All recorded sales
37
Since 17 December 1997
Five-year median
£230,000
Sales in five-year window
4

Properties by latest recorded type

Detached 0
Semi-detached 0
Terraced 5
Flats 19
Other 3

Annual property market

Bars show recorded Price Paid sales. Lines show median sale prices. Hover or tap a year for exact values, or select a legend item to show or hide a series.

Annual property market data
YearRecorded salesAll property types median sale priceTerraced median sale priceFlat or maisonette median sale priceOther median sale price
20055£170,000-£170,000-
200610£145,000£213,500£145,000-
20101£200,000£200,000--
20111£190,000£190,000--
20141£208,000£208,000--
20152£158,500£197,000£120,000-
20162£181,748£249,995£113,500-
20172£192,225£285,000£99,450-
20181£138,500-£138,500-
20201£185,000--£185,000
20252£230,000-£225,000£235,000
20262£225,000-£120,000£330,000

Properties with recorded sales

1-20 of 27 properties · 37 recorded sales · NN1 1JS

July 2021 to July 2026

  1. 7, Flat 1, Castilian Street, Northampton, NN1 1JS

    Flat or maisonette, Leasehold, existing property

    Latest sale · 12 June 2026

    £120,000
    1 previous sale
    1. 7 June 2018 £138,500

  2. 21, Castilian Street, Northampton, NN1 1JS

    Other, Freehold, existing property

    Latest sale · 23 April 2026

    £330,000

  3. 23, Castilian Street, Northampton, NN1 1JS

    Other, Freehold, existing property

    Latest sale · 16 May 2025

    £235,000

  4. 19, Castilian Street, Northampton, NN1 1JS

    Flat or maisonette, Freehold, existing property

    Latest sale · 14 March 2025

    £225,000

  5. 9, Castilian Street, Northampton, NN1 1JS

    Other, Freehold, existing property

    Latest sale · 14 January 2020

    £185,000

  6. 5, Castilian Street, Northampton, NN1 1JS

    Terraced, Freehold, existing property

    Latest sale · 1 December 2017

    £285,000
    4 previous sales
    1. 4 August 2016 £249,995
    2. 21 February 2014 £208,000
    3. 30 July 2010 £200,000
    4. 12 March 1999 £96,000

  7. 7, Flat 2, Castilian Street, Northampton, NN1 1JS

    Flat or maisonette, Leasehold, existing property

    Latest sale · 12 June 2017

    £99,450

  8. 7, Flat 3, Castilian Street, Northampton, NN1 1JS

    Flat or maisonette, Leasehold, new build

    Latest sale · 31 March 2016

    £113,500

  9. 7, Castilian Street, Northampton, NN1 1JS

    Terraced, Freehold, existing property

    Latest sale · 29 May 2015

    £197,000
    2 previous sales
    1. 10 March 2011 £190,000
    2. 10 February 1999 £104,000

  10. Flat 1, 7, Castilian Street, Northampton, NN1 1JS

    Flat or maisonette, Leasehold, new build

    Latest sale · 26 May 2015

    £120,000

  11. 15, Castilian Street, Northampton, NN1 1JS

    Terraced, Freehold, existing property

    Latest sale · 18 December 2006

    £213,500
    1 previous sale
    1. 7 February 2003 £185,000

  12. Castilian Court, 17, Flat 8, Castilian Street, Northampton, NN1 1JS

    Flat or maisonette, Leasehold, existing property

    Latest sale · 27 January 2006

    £130,000

  13. Castilian Court, 17, Flat 7, Castilian Street, Northampton, NN1 1JS

    Flat or maisonette, Leasehold, existing property

    Latest sale · 19 January 2006

    £145,000

  14. Castilian Court, 17, Flat 5, Castilian Street, Northampton, NN1 1JS

    Flat or maisonette, Leasehold, existing property

    Latest sale · 12 January 2006

    £190,000

  15. Castilian Court, 17, Flat 3, Castilian Street, Northampton, NN1 1JS

    Flat or maisonette, Leasehold, existing property

    Latest sale · 11 January 2006

    £145,000

  16. Castilian Court, 17, Flat 14, Castilian Street, Northampton, NN1 1JS

    Flat or maisonette, Leasehold, existing property

    Latest sale · 10 January 2006

    £210,000

  17. Castilian Court, 17, Flat 12, Castilian Street, Northampton, NN1 1JS

    Flat or maisonette, Leasehold, existing property

    Latest sale · 9 January 2006

    £145,000

  18. Castilian Court, 17, Flat 9, Castilian Street, Northampton, NN1 1JS

    Flat or maisonette, Leasehold, existing property

    Latest sale · 9 January 2006

    £145,000

  19. Castilian Court, 17, Flat 4, Castilian Street, Northampton, NN1 1JS

    Flat or maisonette, Leasehold, existing property

    Latest sale · 6 January 2006

    £130,000

  20. Castilian Court, 17, Flat 10, Castilian Street, Northampton, NN1 1JS

    Flat or maisonette, Leasehold, existing property

    Latest sale · 5 January 2006

    £190,000

Evidence in context

Property market

The five-year median is £230,000 from 4 recorded sales in NN1 1JS. This is a recorded-sale statistic, not a current valuation.

The latest UK House Price Index average for West Northamptonshire is £292,754 in June 2026, up 2.5% year on year.