Castle Street

Castle StreetHouse Prices / East Midlands, West Northamptonshire

Last updated Jun 2026

Key Street Insights

Castle Street is a residential street with 97 addresses.

It ranks as the 239th largest and 56th most expensive of the 302 streets in the NN1 area. The dominant property type is a mid-century flat built between 1936 and 1979.

The street contains a total of 97 properties: 3 houses and 94 flats.

97
Properties
  • Houses
  • Flats

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House Priceson Castle Street

Sale prices range from £104,659 for 1 bedroom leasehold flats (419 ft2) to £187,338 for 2 bedroom freehold houses with a garden (796 ft2) .

Monthly rental prices range from £725 pcm for 1 bed flats to £1,037 pcm for 2 bed houses.

The gross rental yield is between 5.9% and 8.4%.

The average value per square foot is £211.

Average Sale Value
£128,634
Average Rental Value
£860 pcm
Average Rental Yield
8.0% /year
Average Value Per Sqft
£211 /ft2
Prices last updated 1st June 2026
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Sales History
on Castle Street, Northampton, NN1

The last sale was on 7th November 2022 for £132,500 and since then the market in the area has decreased by 4.9%. The street has had a total of 18 sales since 1995.

Castle Street, Northampton, NN1 has seen no sales in the last three years and no sales in the last twelve months.

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Nearby Streetsto Castle Street, Northampton, NN1

Castle Street, Northampton, NN1 is the 239th largest and the 56th most expensive street in the NN1 area.

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Postcodeson Castle Street, Northampton, NN1

There are 3 postcodes on Castle Street, Northampton, NN1.

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Property Typesin Castle Street

  • 3 modern houses built after 1980
  • 5 modern flats built after 1980
  • 89 mid-century flats built between 1936 and 1979
  • modern house (3)
  • modern flat (5)
  • mid-century flat (89)
Energy Efficiency

Energy Efficiencyof properties on Castle Street

  • Energy Performance Certificate (EPC) surveys conducted for 82 properties.
  • The dominant rating is C.
  • A (0)
  • E (0)
  • B (4)
  • F (0)
  • C (62)
  • G (0)
  • D (16)
  • No EPC (15)
Schools Nearby

Schools Nearby

The nearest primary school to Castle Street, Northampton, NN1 is Spring Lane Primary School, which is 200 metres away.
  • 200
    m
    Spring Lane Primary School
  • 600
    m
    Castle Academy
  • 1.0
    km
    St James Church of England Primary School
The nearest secondary school is Malcolm Arnold Academy, which is 1.9 kilometres away.
  • 1.9
    km
    Malcolm Arnold Academy
  • 2.4
    km
    Northampton School for Boys
  • 2.5
    km
    Abbeyfield School
More reading links
Source: Ofsted 2026
Public Transport Nearby

Public Transport Nearby

The closest station to Castle Street, Northampton, NN1 is Northampton station, which is 300 metres away.

  • 300
    m
    Northampton
  • 14.0
    km
    Long Buckby
  • 17.0
    km
    Wellingborough
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