Castle Avenue - NN5 6LF
Key Postcode Insights
NN5 6LF is a residential postcode situated on Castle Avenue, Northampton, NN5 with 36 addresses.
It ranks as the 620th largest and 392nd most expensive of the 821 postcodes in the NN5 area. The most common property type is a mid-century house built between 1936 and 1979.
The postcode contains a total of 36 properties: 36 houses.
- Ave. Sale Price
- £247,742
- 10 Year change
- up 36.2%
- Ave. Rental Price
- £1,307pcm
- 10 Year change
- up 53.7%
- Ave. £ per ft²
- £263/ft²
- Ave. Gross Yield
- 6.3%/year/yr
Key Postcode Insights
NN5 6LF is a residential postcode situated on Castle Avenue, Northampton, NN5 with 36 addresses.
It ranks as the 620th largest and 392nd most expensive of the 821 postcodes in the NN5 area. The most common property type is a mid-century house built between 1936 and 1979.
The postcode contains a total of 36 properties: 36 houses.
- Ave. Sale Price
- £247,742
- 10 Year change
- up 36.2%
- Ave. Rental Price
- £1,307pcm
- 10 Year change
- up 53.7%
- Ave. £ per ft²
- £263/ft²
- Ave. Gross Yield
- 6.3%/year/yr
Explore Propertiesin NN5 6LF
- 2 Castle Avenue
3 Bed Mid-century House
- 4 Castle Avenue
3 Bed Mid-century House
- 6 Castle Avenue
3 Bed Mid-century House
- 8 Castle Avenue
3 Bed Mid-century House
- 10 Castle Avenue
3 Bed House
Sales Market Trends
The last sale in NN5 6LF sold for £320,000 on 2nd February 2026. Since then prices are up an average of 0.4%.
The current average value in the postcode is £247,742.
The NN5 6LF Sales Market has increased by 36.2% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | -0.8% | £247,742 |
| June 2025 | 2.8% | £249,648 |
| June 2024 | -0.8% | £242,946 |
| June 2023 | -1.4% | £244,840 |
| June 2022 | 10.7% | £248,291 |
| June 2021 | 7.5% | £224,386 |
| June 2020 | 1.5% | £208,774 |
| June 2019 | 0.6% | £205,787 |
| June 2018 | 5.1% | £204,486 |
| June 2017 | 7% | £194,581 |
| June 2016 | 11.5% | £181,876 |
| June 2015 | 6% | £163,134 |
| June 2014 | 8.5% | £153,880 |
| June 2013 | 2% | £141,814 |
| June 2012 | 1.4% | £139,006 |
| June 2011 | -0.5% | £137,106 |
| June 2010 | 8.7% | £137,813 |
| June 2009 | -12.2% | £126,762 |
| June 2008 | -5.3% | £144,350 |
| June 2007 | 0% | £152,380 |
Rental Market Trends
The current average rental value in the postcode is £1,307.
The NN5 6LF Rental Market has increased by 53.7% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | 2.8% | £1,307pcm |
| June 2025 | 5.1% | £1,272pcm |
| June 2024 | 6.2% | £1,210pcm |
| June 2023 | 8.4% | £1,139pcm |
| June 2022 | 10.1% | £1,051pcm |
| June 2021 | 3.7% | £954pcm |
| June 2020 | 0.8% | £920pcm |
| June 2019 | 0.3% | £913pcm |
| June 2018 | 2.4% | £911pcm |
| June 2017 | 4.5% | £889pcm |
| June 2016 | 5.9% | £850pcm |
| June 2015 | 4.3% | £803pcm |
| June 2014 | 4.1% | £770pcm |
| June 2013 | 2.8% | £740pcm |
| June 2012 | 3.3% | £719pcm |
| June 2011 | 2.1% | £697pcm |
| June 2010 | 3.5% | £683pcm |
| June 2009 | -6.4% | £660pcm |
| June 2008 | -1.2% | £705pcm |
| June 2007 | 0% | £714pcm |
Sales History
The last sale was on 2nd February 2026 for £320,000 and since then the market in the area has increased by 0.4%. The postcode has had a total of 34 sales since 1995.
NN5 6LF has seen 5 sales in the last three years and 4 sales in the last twelve months.
- Sold Feb 2026£320,000 | 4 Bed House46, Castle Avenue, Northampton, NN5 6LF46, Castle Avenue, Northampton, NN5 6LF
- Sold Nov 2025£332,000 | 4 Bed House68, Castle Avenue, Northampton, NN5 6LF68, Castle Avenue, Northampton, NN5 6LF
- Sold Oct 2025£240,000 | 3 Bed House18, Castle Avenue, Northampton, NN5 6LF18, Castle Avenue, Northampton, NN5 6LF
- Sold Jul 2025£265,000 | 3 Bed House12, Castle Avenue, Northampton, NN5 6LF12, Castle Avenue, Northampton, NN5 6LF
- Sold Jan 2025£255,000 | 3 Bed House44, Castle Avenue, Northampton, NN5 6LF44, Castle Avenue, Northampton, NN5 6LF
Nearby Postcodes
NN5 6LF is the 620th largest and the 392nd most expensive postcode out of the 821 postcodes in the NN5 area.
- NN5 6LG, Castle Avenue, Northampton, NN5NN5 6LG23 Addresses|46 m away
- NN5 6TQ, Eastfield Road, Duston, Northampton, NN5NN5 6TQ42 Addresses|58 m away
- NN5 6LZ, Castle Close, Northampton, NN5NN5 6LZ10 Addresses|97 m away
- NN5 6TG, Eastfield Road, Duston, Northampton, NN5NN5 6TG38 Addresses|97 m away
- NN5 6LW, Castle Bush, Northampton, NN5NN5 6LW10 Addresses|99 m away
Property Types
- 26 mid-century houses built between 1936 and 1979
- 1 house of an unknown age
- 2 early-century houses built between 1912 and 1935
- 7 other addresses of unknown type
- mid-century house (26)
- house (1)
- early-century house (2)
- Unknown (7)
Energy Efficiency
- Energy Performance Certificate (EPC) surveys conducted for 28 properties.
- The most common rating is D.
- A (0)
- E (0)
- B (4)
- F (1)
- C (8)
- G (0)
- D (15)
- No EPC (8)
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 School400 m away
- Duston Eldean Primary School600 m away
- Chiltern Primary School1.0 km away
- Malcolm Arnold Academy3.8 km away
- Abbeyfield School4.7 km away
- Kingsthorpe College4.7 km away
More reading links
Public Transport Nearby
The closest station to NN5 6LF is Northampton station, which is 3.0 kilometres away.
- Northampton|3.0 km away
- Long Buckby|10.7 km away
- Wellingborough|19.3 km away
- Kettering|21.6 km away
