Castle Avenue - NN5 6JZ
Key Postcode Insights
NN5 6JZ is a residential postcode situated on Castle Avenue, Northampton, NN5 with 20 addresses.
It ranks as the 375th largest and 47th most expensive of the 821 postcodes in the NN5 area. The most common property type is a mid-century flat built between 1936 and 1979.
The postcode contains a total of 20 properties: 9 houses and 11 flats.
- Ave. Sale Price
- £153,840
- 10 Year change
- up 31.9%
- Ave. Rental Price
- £915pcm
- 10 Year change
- up 48.8%
- Ave. £ per ft²
- £238/ft²
- Ave. Gross Yield
- 7.1%/year/yr
Key Postcode Insights
NN5 6JZ is a residential postcode situated on Castle Avenue, Northampton, NN5 with 20 addresses.
It ranks as the 375th largest and 47th most expensive of the 821 postcodes in the NN5 area. The most common property type is a mid-century flat built between 1936 and 1979.
The postcode contains a total of 20 properties: 9 houses and 11 flats.
- Ave. Sale Price
- £153,840
- 10 Year change
- up 31.9%
- Ave. Rental Price
- £915pcm
- 10 Year change
- up 48.8%
- Ave. £ per ft²
- £238/ft²
- Ave. Gross Yield
- 7.1%/year/yr
Explore Propertiesin NN5 6JZ
- 74 Castle Avenue
2 Bed House
- 76 Castle Avenue
2 Bed Mid-century Flat
- 78 Castle Avenue
2 Bed Mid-century Flat
- 80 Castle Avenue
2 Bed Mid-century Flat
- 82 Castle Avenue
Unknown
Sales Market Trends
The last sale in NN5 6JZ sold for £230,000 on 5th February 2025. Since then prices are down an average of 1.0%.
The current average value in the postcode is £153,840.
The NN5 6JZ Sales Market has increased by 31.9% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | -0.7% | £153,840 |
| June 2025 | 2.5% | £154,980 |
| June 2024 | -0.7% | £151,266 |
| June 2023 | -1.9% | £152,297 |
| June 2022 | 9.8% | £155,196 |
| June 2021 | 6.7% | £141,310 |
| June 2020 | 1.2% | £132,451 |
| June 2019 | 0.6% | £130,891 |
| June 2018 | 4.5% | £130,073 |
| June 2017 | 6.7% | £124,468 |
| June 2016 | 11.3% | £116,635 |
| June 2015 | 5.9% | £104,836 |
| June 2014 | 8.3% | £99,013 |
| June 2013 | 1.7% | £91,385 |
| June 2012 | 0.8% | £89,857 |
| June 2011 | -0.7% | £89,133 |
| June 2010 | 7.4% | £89,740 |
| June 2009 | -13.2% | £83,527 |
| June 2008 | -5.4% | £96,265 |
| June 2007 | 0% | £101,710 |
Rental Market Trends
The current average rental value in the postcode is £915.
The NN5 6JZ Rental Market has increased by 48.8% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | 2.8% | £915pcm |
| June 2025 | 4.8% | £890pcm |
| June 2024 | 6.3% | £849pcm |
| June 2023 | 7.9% | £799pcm |
| June 2022 | 9.3% | £741pcm |
| June 2021 | 2.9% | £678pcm |
| June 2020 | 0.5% | £658pcm |
| June 2019 | 0.3% | £655pcm |
| June 2018 | 1.9% | £653pcm |
| June 2017 | 4.3% | £641pcm |
| June 2016 | 5.7% | £615pcm |
| June 2015 | 4.1% | £582pcm |
| June 2014 | 4% | £559pcm |
| June 2013 | 2.5% | £538pcm |
| June 2012 | 2.7% | £524pcm |
| June 2011 | 1.9% | £511pcm |
| June 2010 | 2.2% | £501pcm |
| June 2009 | -7.5% | £490pcm |
| June 2008 | -1.3% | £530pcm |
| June 2007 | 0% | £537pcm |
Sales History
The last sale was on 5th February 2025 for £230,000 and since then the market in the area has decreased by 1.0%. The postcode has had a total of 31 sales since 1995.
NN5 6JZ has seen 2 sales in the last three years and no sales in the last twelve months.
- Sold Feb 2025£230,000 | 3 Bed House108, Castle Avenue, Northampton, NN5 6JZ108, Castle Avenue, Northampton, NN5 6JZ
- Sold Jun 2023£115,000 | 2 Bed Flat88, Castle Avenue, Northampton, NN5 6JZ88, Castle Avenue, Northampton, NN5 6JZ
- Sold Dec 2022£118,000 | 2 Bed Flat92, Castle Avenue, Northampton, NN5 6JZ92, Castle Avenue, Northampton, NN5 6JZ
- Sold Jun 2021£100,000 | 2 Bed House74, Castle Avenue, Northampton, NN5 6JZ74, Castle Avenue, Northampton, NN5 6JZ
- Sold Apr 2021£108,000 | 2 Bed Flat78, Castle Avenue, Northampton, NN5 6JZ78, Castle Avenue, Northampton, NN5 6JZ
Nearby Postcodes
NN5 6JZ is the 375th largest and the 47th most expensive postcode out of the 821 postcodes in the NN5 area.
- NN5 6LB, Barnard Close, Northampton, NN5NN5 6LB28 Addresses|89 m away
- NN5 6LZ, Castle Close, Northampton, NN5NN5 6LZ10 Addresses|119 m away
- NN5 6PW, Rosette Close, Northampton, NN5NN5 6PW9 Addresses|136 m away
- NN5 6PQ, Sir John Pascoe Way, Northampton, NN5NN5 6PQ31 Addresses|143 m away
- NN5 6LE, Warwick Close, Northampton, NN5NN5 6LE10 Addresses|144 m away
Property Types
- 4 mid-century houses built between 1936 and 1979
- 10 mid-century flats built between 1936 and 1979
- 1 house of an unknown age
- 5 other addresses of unknown type
- mid-century house (4)
- mid-century flat (10)
- house (1)
- Unknown (5)
Energy Efficiency
- Energy Performance Certificate (EPC) surveys conducted for 16 properties.
- The most common rating is D.
- A (0)
- E (4)
- B (0)
- F (0)
- C (5)
- G (0)
- D (7)
- No EPC (4)
Top 3 Most Expensive Sales
- Sold Nov 2025£332,000 | 4 Bed House68, Castle Avenue, Northampton, NN5 6LF68, Castle Avenue, Northampton, NN5 6LF
- Sold Feb 2026£320,000 | 4 Bed House46, Castle Avenue, Northampton, NN5 6LF46, Castle Avenue, Northampton, NN5 6LF
- Sold Jun 2019£302,000 | 5 Bed House43, Castle Avenue, Northampton, NN5 6LG43, Castle Avenue, Northampton, NN5 6LG
Schools Nearby
- Hopping Hill Primary School500 m away
- Duston Eldean Primary School800 m away
- Chiltern Primary School1.0 km away
- Malcolm Arnold Academy3.8 km away
- Abbeyfield School4.5 km away
- Kingsthorpe College4.8 km away
More reading links
Public Transport Nearby
The closest station to NN5 6JZ is Northampton station, which is 2.9 kilometres away.
- Northampton|2.9 km away
- Long Buckby|10.9 km away
- Wellingborough|19.3 km away
- Kettering|21.8 km away
