12, Onslow Gardens occupies a 316 m² plot as recorded by HM Land Registry.

Of the 22 other houses in this postcode, 21 have recorded plot sizes, and this one ranks as the 4th largest.

12, Onslow Gardens has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 15 Mar 2021.

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

12, Onslow Gardens last changed hands on 31st May 2011, selling for £365,000. The transaction was logged as a freehold house by HM Land Registry.

That is its only recorded sale since 1995.

The market for similar properties has risen by 68.3% since May 2011.

• Sold May 2011£365,000

Land Registry records and our Estate Agent network show 132 sales of comparable properties within 510 metres of 12, Onslow Gardens since 2010.

Most recently, 69, Cadogan Gardens, London, E18 1LY, a freehold house, sold at £810,000 on the 4th February 2026.

Read more about house prices in E18.

• Sold Feb 2026£810,000 | 3 Bed House69, Cadogan Gardens, London, E18 1LY69, Cadogan Gardens, London, E18 1LY
• Sold Dec 2025£940,000 | 3 Bed House10, Pelham Road, London, E18 1PX10, Pelham Road, London, E18 1PX
• Sold Oct 2025£742,000 | 3 Bed House40, Albert Road, London, E18 1LE40, Albert Road, London, E18 1LE
• Sold Oct 2025£290,000 | 3 Bed House29, Cadogan Gardens, London, E18 1LT29, Cadogan Gardens, London, E18 1LT
• Sold Aug 2025£815,000 | 3 Bed House34, Onslow Gardens, London, E18 1NE34, Onslow Gardens, London, E18 1NE
• Sold Aug 2025£772,920 | 3 Bed House14, Ashford Road, London, E18 1JZ14, Ashford Road, London, E18 1JZ
• Sold Jun 2024£767,075 | 3 Bed House93, Cadogan Gardens, London, E18 1LY93, Cadogan Gardens, London, E18 1LY
• Sold Oct 2023£660,000 | 3 Bed House2, Cowslip Road, London, E18 1JW2, Cowslip Road, London, E18 1JW
• Sold Apr 2023£850,000 | 3 Bed House38, Cadogan Gardens, London, E18 1LU38, Cadogan Gardens, London, E18 1LU
• Sold Aug 2022£717,380 | 3 Bed House100, Cadogan Gardens, London, E18 1LZ100, Cadogan Gardens, London, E18 1LZ
• Sold Nov 2021£746,000 | 3 Bed House40, Onslow Gardens, London, E18 1NE40, Onslow Gardens, London, E18 1NE
• Sold Aug 2019£680,000 | 3 Bed House20, Onslow Gardens, London, E18 1NE20, Onslow Gardens, London, E18 1NE
• Sold Oct 2018£750,000 | 3 Bed House35, Onslow Gardens, London, E18 1ND35, Onslow Gardens, London, E18 1ND
• Sold May 2018£735,000 | 3 Bed House26, Sherwood Avenue, London, E18 1PB26, Sherwood Avenue, London, E18 1PB
• Sold Dec 2017£690,000 | 3 Bed House6, Onslow Gardens, London, E18 1NE6, Onslow Gardens, London, E18 1NE
• Sold Jan 2015£572,500 | 3 Bed House24, Cadogan Gardens, London, E18 1LU24, Cadogan Gardens, London, E18 1LU
• Sold Dec 2014£525,000 | 3 Bed House5, Onslow Gardens, London, E18 1ND5, Onslow Gardens, London, E18 1ND
• Sold Apr 2012£435,000 | 3 Bed House17, Cadogan Gardens, London, E18 1LT17, Cadogan Gardens, London, E18 1LT
• Sold Sep 2011£365,000 | 3 Bed House15, Cadogan Gardens, London, E18 1LT15, Cadogan Gardens, London, E18 1LT
• Sold Jan 2010£400,000 | 3 Bed House5, Cadogan Gardens, London, E18 1LT5, Cadogan Gardens, London, E18 1LT

Our analysis of the public data ranks 12, Onslow Gardens as the 60th largest and the 43rd most expensive of the 147 addresses on Onslow Gardens, London, E18.

Against the E18 postcode district average, it is £189k more expensive than the typical property.

• Oakdale Junior School

  300 m away
• Oakdale Infants' School

  400 m away
• Nightingale Primary School

  500 m away

• Woodbridge High School

  1.3 km away
• Beal High School

  1.3 km away
• Wanstead High School

  1.5 km away

• South Woodford

  |

  500 m away
• Snaresbrook

  |

  1.3 km away
• Wanstead

  |

  1.6 km away

Environment Agency data suggests this area has a Very Low risk of flooding.