12, Onslow Gardens, Ongar occupies a 362 m² plot as recorded by HM Land Registry.

All 36 other houses in this postcode have recorded plot sizes, and this one ranks as the 8th largest.

12, Onslow Gardens, Ongar has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 12 Feb 2026.

The property is connected to mains gas and has mostly double glazing. It is heated using a boiler and radiators (mains gas).

Land Registry records and our Estate Agent network show 209 sales of comparable properties within 990 metres of 12, Onslow Gardens, Ongar since 2010.

Most recently, 16, Bowes Drive, Ongar, CM5 9AU, a freehold house, sold at £525,000 on the 13th February 2026.

Read more about house prices in CM5.

• Sold Feb 2026£525,000 | 3 Bed House16, Bowes Drive, Ongar, CM5 9AU16, Bowes Drive, Ongar, CM5 9AU
• Sold Feb 2026£495,000 | 3 Bed House6, The Johns, Ongar, CM5 9BD6, The Johns, Ongar, CM5 9BD
• Sold Dec 2025£470,000 | 3 Bed House5, Bowes Drive, Ongar, CM5 9AU5, Bowes Drive, Ongar, CM5 9AU
• Sold Mar 2025£470,000 | 3 Bed House1, Marks Avenue, Ongar, CM5 9AY1, Marks Avenue, Ongar, CM5 9AY
• Sold Aug 2024£510,000 | 3 Bed House24, Bowes Drive, Ongar, CM5 9AU24, Bowes Drive, Ongar, CM5 9AU
• Sold Jul 2024£546,000 | 3 Bed House10, Mayflower Way, Ongar, CM5 9AZ10, Mayflower Way, Ongar, CM5 9AZ
• Sold Jun 2024£460,000 | 3 Bed House35, Mayflower Way, Ongar, CM5 9AZ35, Mayflower Way, Ongar, CM5 9AZ
• Sold Apr 2024£465,000 | 3 Bed House31, Onslow Gardens, Ongar, CM5 9BG31, Onslow Gardens, Ongar, CM5 9BG
• Sold Feb 2024£515,000 | 3 Bed House20, Mayflower Way, Ongar, CM5 9AZ20, Mayflower Way, Ongar, CM5 9AZ
• Sold Oct 2023£494,000 | 3 Bed House34, Onslow Gardens, Ongar, CM5 9BG34, Onslow Gardens, Ongar, CM5 9BG
• Sold Sep 2023£485,000 | 3 Bed House6, Mayflower Way, Ongar, CM5 9AZ6, Mayflower Way, Ongar, CM5 9AZ
• Sold Dec 2022£557,500 | 3 Bed House51, Onslow Gardens, Ongar, CM5 9BQ51, Onslow Gardens, Ongar, CM5 9BQ
• Sold Nov 2022£500,000 | 3 Bed House33, Onslow Gardens, Ongar, CM5 9BG33, Onslow Gardens, Ongar, CM5 9BG
• Sold Oct 2020£460,000 | 3 Bed House14, Mayflower Way, Ongar, CM5 9AZ14, Mayflower Way, Ongar, CM5 9AZ
• Sold Nov 2019£450,000 | 3 Bed House27, Onslow Gardens, Ongar, CM5 9BG27, Onslow Gardens, Ongar, CM5 9BG
• Sold Mar 2019£342,000 | 3 Bed House10, The Johns, Ongar, CM5 9BD10, The Johns, Ongar, CM5 9BD
• Sold Jul 2018£470,000 | 3 Bed House32, Onslow Gardens, Ongar, CM5 9BG32, Onslow Gardens, Ongar, CM5 9BG
• Sold Mar 2014£286,000 | 3 Bed House17, Onslow Gardens, Ongar, CM5 9BG17, Onslow Gardens, Ongar, CM5 9BG
• Sold Jan 2012£320,000 | 3 Bed House22, Onslow Gardens, Ongar, CM5 9BG22, Onslow Gardens, Ongar, CM5 9BG
• Sold Mar 2010£288,000 | 3 Bed House18, Onslow Gardens, Ongar, CM5 9BG18, Onslow Gardens, Ongar, CM5 9BG

Our analysis of the public data ranks 12, Onslow Gardens, Ongar as the 42nd largest and the 42nd most expensive of the 59 addresses on Onslow Gardens, Ongar, CM5.

Against the CM5 postcode district average, it is £74k less expensive than the typical property.

• Ongar Primary School

  900 m away
• High Ongar Primary School

  1.0 km away
• Chipping Ongar Primary School

  1.4 km away

• The Ongar Academy

  900 m away
• Shenfield High School

  9.7 km away
• Becket Keys Church of England Free School

  9.9 km away

• Epping

  |

  9.4 km away
• Shenfield

  |

  10.4 km away
• Ingatestone

  |

  10.5 km away

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