Southill Road - SG18 9NN
Key Postcode Insights
SG18 9NN is a residential postcode situated on Southill Road, Broom, Biggleswade, SG18 with 25 addresses.
It ranks as the 504th largest and 337th most expensive of the 718 postcodes in the SG18 area. The most common property type is a period house built between 1800 and 1911.
The postcode contains a total of 25 properties: 24 houses and 1 flat.
- Ave. Sale Price
- £401,876
- 10 Year change
- up 25.3%
- Ave. Rental Price
- £1,693pcm
- 10 Year change
- up 49.6%
- Ave. £ per ft²
- £369/ft²
- Ave. Gross Yield
- 5.1%/year/yr
Key Postcode Insights
SG18 9NN is a residential postcode situated on Southill Road, Broom, Biggleswade, SG18 with 25 addresses.
It ranks as the 504th largest and 337th most expensive of the 718 postcodes in the SG18 area. The most common property type is a period house built between 1800 and 1911.
The postcode contains a total of 25 properties: 24 houses and 1 flat.
- Ave. Sale Price
- £401,876
- 10 Year change
- up 25.3%
- Ave. Rental Price
- £1,693pcm
- 10 Year change
- up 49.6%
- Ave. £ per ft²
- £369/ft²
- Ave. Gross Yield
- 5.1%/year/yr
Explore Propertiesin SG18 9NN
- Little Dene
Unknown
- The Bothy
Building  |  4 Flats
- 22 Southill Road
5 Bed Period House
- 24 Southill Road
3 Bed Period House
- 26 Southill Road
3 Bed Period House
Sales Market Trends
The last sale in SG18 9NN sold for £363,000 on 19th June 2025. Since then prices are down an average of 0.6%.
The current average value in the postcode is £401,876.
The SG18 9NN Sales Market has increased by 25.3% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | -0.7% | £401,876 |
| June 2025 | 0.6% | £404,849 |
| June 2024 | -0.8% | £402,512 |
| June 2023 | -0.1% | £405,617 |
| June 2022 | 7.8% | £405,974 |
| June 2021 | 6.7% | £376,711 |
| June 2020 | 1.1% | £353,142 |
| June 2019 | -1.2% | £349,380 |
| June 2018 | 2.8% | £353,786 |
| June 2017 | 7.4% | £344,251 |
| June 2016 | 13.2% | £320,656 |
| June 2015 | 8.9% | £283,216 |
| June 2014 | 10.3% | £260,033 |
| June 2013 | 1.5% | £235,733 |
| June 2012 | -0.3% | £232,349 |
| June 2011 | 1.5% | £233,041 |
| June 2010 | 9.7% | £229,572 |
| June 2009 | -13.1% | £209,239 |
| June 2008 | -1% | £240,828 |
| June 2007 | 0% | £243,276 |
Rental Market Trends
The current average rental value in the postcode is £1,693.
The SG18 9NN Rental Market has increased by 49.6% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | 2.2% | £1,693pcm |
| June 2025 | 5.7% | £1,656pcm |
| June 2024 | 7.8% | £1,567pcm |
| June 2023 | 8.7% | £1,454pcm |
| June 2022 | 7% | £1,338pcm |
| June 2021 | 6% | £1,250pcm |
| June 2020 | 2.5% | £1,179pcm |
| June 2019 | -0.1% | £1,151pcm |
| June 2018 | -1.3% | £1,152pcm |
| June 2017 | 3.2% | £1,167pcm |
| June 2016 | 6.3% | £1,131pcm |
| June 2015 | 5.7% | £1,064pcm |
| June 2014 | 4.9% | £1,007pcm |
| June 2013 | 3.2% | £960pcm |
| June 2012 | 0.7% | £930pcm |
| June 2011 | 3.6% | £924pcm |
| June 2010 | 6% | £891pcm |
| June 2009 | -6.4% | £841pcm |
| June 2008 | 2.2% | £899pcm |
| June 2007 | 0% | £879pcm |
Sales History
The last sale was on 19th June 2025 for £363,000 and since then the market in the area has decreased by 0.6%. The postcode has had a total of 17 sales since 1995.
SG18 9NN has seen 3 sales in the last three years and no sales in the last twelve months.
- Sold Jun 2025£363,000 | 4 Bed House45, Southill Road, Biggleswade, SG18 9NN45, Southill Road, Biggleswade, SG18 9NN
- Sold Mar 2025£390,000 | 3 Bed House4 The Bothy, Southill Road, Biggleswade, SG18 9NN4 The Bothy, Southill Road, Biggleswade, SG18 9NN
- Sold Aug 2024£355,000 | 3 Bed House41, Southill Road, Biggleswade, SG18 9NN41, Southill Road, Biggleswade, SG18 9NN
- Sold Jul 2021£370,000 | 3 Bed House1 The Bothy, Southill Road, Biggleswade, SG18 9NN1 The Bothy, Southill Road, Biggleswade, SG18 9NN
- Sold Jan 2016£295,000 | 3 Bed House3 The Bothy, Southill Road, Biggleswade, SG18 9NN3 The Bothy, Southill Road, Biggleswade, SG18 9NN
Nearby Postcodes
SG18 9NN is the 504th largest and the 337th most expensive postcode out of the 718 postcodes in the SG18 area.
- SG18 9NP, High Street, Broom, Biggleswade, SG18SG18 9NP10 Addresses|83 m away
- SG18 9NR, Birch Close, Broom, Biggleswade, SG18SG18 9NR31 Addresses|148 m away
- SG18 9NB, Bancroft Avenue, Broom, Biggleswade, SG18SG18 9NB31 Addresses|216 m away
- SG18 9NW, Southill Road, Broom, Biggleswade, SG18SG18 9NW13 Addresses|226 m away
- SG18 9ND, High Street, Broom, Biggleswade, SG18SG18 9ND23 Addresses|227 m away
Property Types
- 13 period houses built between 1800 and 1911
- 5 modern houses built after 1980
- 1 mid-century house built between 1936 and 1979
- 6 other addresses of unknown type
- period house (13)
- modern house (5)
- mid-century house (1)
- Unknown (6)
Energy Efficiency
- Energy Performance Certificate (EPC) surveys conducted for 18 properties.
- The most common rating is E.
- A (0)
- E (8)
- B (0)
- F (2)
- C (1)
- G (1)
- D (6)
- No EPC (7)
Top 3 Most Expensive Sales
- Sold Mar 2025£850,000 | 5 Bed HouseBroom House, Southill Road, Biggleswade, SG18 9NWBroom House, Southill Road, Biggleswade, SG18 9NW
- Sold Nov 2022£732,500 | 4 Bed House17, Southill Road, Biggleswade, SG18 9NW17, Southill Road, Biggleswade, SG18 9NW
- Sold Jul 2011£720,000 | 5 Bed House32, Southill Road, Biggleswade, SG18 9NN32, Southill Road, Biggleswade, SG18 9NN
Schools Nearby
- Langford Village Academy1.9 km away
- Southill Lower School2.3 km away
- St Andrew's CofE VC Primary School2.7 km away
- Stratton School3.3 km away
- Edward Peake CofE VC School4.0 km away
- Samuel Whitbread Academy4.2 km away
More reading links
Public Transport Nearby
The closest station to SG18 9NN is Biggleswade station, which is 2.6 kilometres away.
- Biggleswade|2.6 km away
- Arlesey|5.3 km away
- Sandy|6.0 km away
- Letchworth Garden City|11.0 km away
