HM Land Registry records the plot of land for 20, Irwin Avenue as measuring 279 m².

That makes it the 6th largest plot in the postcode, where all 29 other houses have recorded plot data.

20, Irwin Avenue has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 19 Jan 2018.

The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

The most recent sale of 20, Irwin Avenue completed on 24th June 2019 at £299,995 and was recorded by HM Land Registry as a freehold house.

Since 1995 this is the property's only sale.

Values of comparable properties have risen by 7.4% over the period since June 2019.

Since 2011 68 properties similar to 20, Irwin Avenue have sold within a radius of 430 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 16th April 2026, was 1A, Irwin Avenue, London, SE18 2HP, a freehold house which sold for £404,000.

Read more about house prices in SE18.

• Sold Apr 2026£404,000 | 3 Bed House1A, Irwin Avenue, London, SE18 2HP1A, Irwin Avenue, London, SE18 2HP
• Sold Feb 2026£415,000 | 2 Bed House124, Swingate Lane, London, SE18 2HL124, Swingate Lane, London, SE18 2HL
• Sold Dec 2025£405,000 | 2 Bed House5, Alabama Street, London, SE18 2SJ5, Alabama Street, London, SE18 2SJ
• Sold Apr 2025£350,000 | 3 Bed House4, Alabama Street, London, SE18 2SJ4, Alabama Street, London, SE18 2SJ
• Sold Mar 2025£360,000 | 2 Bed House42, Sutcliffe Road, London, SE18 2NG42, Sutcliffe Road, London, SE18 2NG
• Sold Mar 2025£380,000 | 3 Bed House29, Alabama Street, London, SE18 2SH29, Alabama Street, London, SE18 2SH
• Sold Feb 2025£350,000 | 2 Bed House32, Alabama Street, London, SE18 2SH32, Alabama Street, London, SE18 2SH
• Sold Feb 2025£367,500 | 2 Bed House34, Alabama Street, London, SE18 2SH34, Alabama Street, London, SE18 2SH
• Sold Aug 2024£370,000 | 2 Bed House52, Sutcliffe Road, London, SE18 2NG52, Sutcliffe Road, London, SE18 2NG
• Sold Feb 2024£355,000 | 2 Bed House26, Alabama Street, London, SE18 2SH26, Alabama Street, London, SE18 2SH
• Sold Jun 2023£325,000 | 2 Bed House13, Alabama Street, London, SE18 2SJ13, Alabama Street, London, SE18 2SJ
• Sold Jan 2023£422,500 | 3 Bed House108, Timbercroft Lane, London, SE18 2SF108, Timbercroft Lane, London, SE18 2SF
• Sold Aug 2022£410,000 | 2 Bed House15, Alabama Street, London, SE18 2SJ15, Alabama Street, London, SE18 2SJ
• Sold Oct 2020£325,000 | 2 Bed House3, Irwin Avenue, London, SE18 2HP3, Irwin Avenue, London, SE18 2HP
• Sold Nov 2019£370,000 | 2 Bed House11, Irwin Avenue, London, SE18 2HP11, Irwin Avenue, London, SE18 2HP
• Sold Jun 2018£280,000 | 3 Bed House33, Irwin Avenue, London, SE18 2HP33, Irwin Avenue, London, SE18 2HP
• Sold Jun 2018£310,000 | 2 Bed House12, Irwin Avenue, London, SE18 2HP12, Irwin Avenue, London, SE18 2HP
• Sold Nov 2016£235,000 | 2 Bed House8, Irwin Avenue, London, SE18 2HP8, Irwin Avenue, London, SE18 2HP
• Sold Oct 2015£270,000 | 3 Bed House2, Irwin Avenue, London, SE18 2HP2, Irwin Avenue, London, SE18 2HP
• Sold Aug 2011£210,000 | 2 Bed House23, Irwin Avenue, London, SE18 2HP23, Irwin Avenue, London, SE18 2HP

Of the 31 addresses on Irwin Avenue, London, SE18, 20, Irwin Avenue comes out as the 19th largest and the 18th most expensive in our analysis of the public data.

It is also £2k less expensive than the average property across the SE18 district.

• Timbercroft Primary School

  100 m away
• Rockliffe Manor Primary School

  200 m away
• Greenslade Primary School

  500 m away

• Plumstead Manor School

  900 m away
• Welling School

  1.8 km away
• St Paul's Academy

  2.0 km away

• Welling

  |

  1.5 km away
• Plumstead

  |

  1.5 km away
• Woolwich Arsenal

  |

  2.1 km away

The flood risk here is rated Very Low, based on Environment Agency data.