HM Land Registry records the plot of land for 18, Onslow Gardens, Ongar as measuring 276 m².

That makes it the 25th largest plot in the postcode, where all 36 other houses have recorded plot data.

18, Onslow Gardens, Ongar has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 07 Oct 2009.

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 18, Onslow Gardens, Ongar completed on 26th March 2010 at £288,000 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 63.6% over the period since March 2010.

• Sold Mar 2010£288,000

Since 2012 208 properties similar to 18, Onslow Gardens, Ongar have sold within a radius of 1.0 kilometres, per the Land Registry and our network of Estate Agents.

The latest, on the 13th February 2026, was 16, Bowes Drive, Ongar, CM5 9AU, a freehold house which sold for £525,000.

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 Sep 2022£555,000 | 3 Bed House18, Great Lawn, Ongar, CM5 0AA18, Great Lawn, Ongar, CM5 0AA
• 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

Of the 59 addresses on Onslow Gardens, Ongar, CM5, 18, Onslow Gardens, Ongar comes out as the 46th largest and the 44th most expensive in our analysis of the public data.

It is also £74k less expensive than the average property across the CM5 district.

• 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

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