18, Castle Street, Ongar has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 13 Aug 2024.

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

The most recent sale of 18, Castle Street, Ongar completed on 1st May 1997 at £45,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 this is the property's only sale.

• Sold May 1997£45,000

Since 2017 84 properties similar to 18, Castle Street, Ongar have sold within a radius of 1.1 kilometres, per the Land Registry and our network of Estate Agents.

The latest, on the 4th December 2025, was 30, High Street, Ongar, CM5 9DZ, a freehold house which sold for £337,182.

Read more about house prices in CM5.

• Sold Dec 2025£337,182 | 3 Bed House30, High Street, Ongar, CM5 9DZ30, High Street, Ongar, CM5 9DZ
• Sold Oct 2025£355,000 | 3 Bed House46, Rodney Road, Ongar, CM5 9HN46, Rodney Road, Ongar, CM5 9HN
• Sold Sep 2025£480,000 | 3 Bed House7, Longfields, Ongar, CM5 9BZ7, Longfields, Ongar, CM5 9BZ
• Sold Mar 2025£412,500 | 3 Bed House27, Cloverly Road, Ongar, CM5 9BX27, Cloverly Road, Ongar, CM5 9BX
• Sold Mar 2025£415,000 | 3 Bed House3, Rodney Road, Ongar, CM5 9HN3, Rodney Road, Ongar, CM5 9HN
• Sold Dec 2023£475,000 | 3 Bed House5 Brook View, Bansons Lane, Ongar, CM5 9FT5 Brook View, Bansons Lane, Ongar, CM5 9FT
• Sold Dec 2023£475,000 | 3 Bed House4 Brook View, Bansons Lane, Ongar, CM5 9FT4 Brook View, Bansons Lane, Ongar, CM5 9FT
• Sold Dec 2023£475,000 | 3 Bed House3 Brook View, Bansons Lane, Ongar, CM5 9FT3 Brook View, Bansons Lane, Ongar, CM5 9FT
• Sold Dec 2023£465,000 | 3 Bed House2 Brook View, Bansons Lane, Ongar, CM5 9FT2 Brook View, Bansons Lane, Ongar, CM5 9FT
• Sold Dec 2023£475,000 | 3 Bed House1 Brook View, Bansons Lane, Ongar, CM5 9FT1 Brook View, Bansons Lane, Ongar, CM5 9FT
• Sold Jun 2023£405,000 | 3 Bed House4, St. Helens Mews 83, High Street, Ongar, CM5 9DT4, St. Helens Mews 83, High Street, Ongar, CM5 9DT
• Sold Jun 2023£383,000 | 3 Bed House19, Cloverly Road, Ongar, CM5 9BX19, Cloverly Road, Ongar, CM5 9BX
• Sold Oct 2022£475,000 | 3 Bed House55, High Street, Ongar, CM5 9DT55, High Street, Ongar, CM5 9DT
• Sold Sep 2022£285,000 | 3 Bed House25, Cloverly Road, Ongar, CM5 9BX25, Cloverly Road, Ongar, CM5 9BX
• Sold Aug 2022£488,000 | 3 Bed House51, Cloverly Road, Ongar, CM5 9BX51, Cloverly Road, Ongar, CM5 9BX
• Sold May 2022£300,000 | 3 Bed House56, Coopers Hill, Ongar, CM5 9EF56, Coopers Hill, Ongar, CM5 9EF
• Sold Jan 2021£396,000 | 3 Bed House34, Castle Street, Ongar, CM5 9JS34, Castle Street, Ongar, CM5 9JS
• Sold Nov 2018£260,000 | 3 Bed House28, High Street, Ongar, CM5 9DZ28, High Street, Ongar, CM5 9DZ
• Sold Aug 2017£425,000 | 3 Bed House26, Castle Street, Ongar, CM5 9JS26, Castle Street, Ongar, CM5 9JS
• Sold Apr 2017£340,000 | 3 Bed House75, Cloverly Road, Ongar, CM5 9BX75, Cloverly Road, Ongar, CM5 9BX

Of the 40 addresses on Castle Street, Ongar, CM5, 18, Castle Street, Ongar comes out as the 33rd largest and the 22nd most expensive in our analysis of the public data.

It is also £129k less expensive than the average property across the CM5 district.

• Chipping Ongar Primary School

  900 m away
• High Ongar Primary School

  1.3 km away
• Ongar Primary School

  1.4 km away

• The Ongar Academy

  1.5 km away
• Shenfield High School

  9.2 km away
• Becket Keys Church of England Free School

  9.3 km away

• Epping

  |

  9.3 km away
• Shenfield

  |

  9.9 km away
• Ingatestone

  |

  10.3 km away

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