Our Data Sources
18A, Castle Street, Ongar has no recent1 records in the Land Registry and a single entry in the EPC database dated August 2017.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 18A, Castle Street, Ongar, we estimate a market value of £673,352 and a rental value of £2,611 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £596,398 and £2,313 per month respectively.
Energy Efficiency
18A, Castle Street, Ongar has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 07 Aug 2017.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
The most recent sale of 18A, Castle Street, Ongar completed on 9th September 1999 at £199,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 this is the property's only sale.
- Sold Sep 1999£199,000
Similar Properties Sold Nearby
Since 2014 171 properties similar to 18A, 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 25th February 2026, was 5, Great Stony Park, Ongar, CM5 0TH, a freehold house which sold for £702,500.
Read more about house prices in CM5.
- Sold Feb 2026£702,500 | 4 Bed House5, Great Stony Park, Ongar, CM5 0TH5, Great Stony Park, Ongar, CM5 0TH
- Sold Jul 2025£565,000 | 4 Bed House50, Longfields, Ongar, CM5 9BZ50, Longfields, Ongar, CM5 9BZ
- Sold Mar 2025£596,000 | 4 Bed House23, Longfields, Ongar, CM5 9BZ23, Longfields, Ongar, CM5 9BZ
- Sold Sep 2024£495,000 | 4 Bed House5, Victoria Road, Ongar, CM5 9FE5, Victoria Road, Ongar, CM5 9FE
- Sold Jun 2024£550,000 | 4 Bed House6, Victoria Road, Ongar, CM5 9FE6, Victoria Road, Ongar, CM5 9FE
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £534,841, ranging from £335,012 to £1,097,576.
- 18 Castle Street
3 Bed House | 1 m | Est. Value: £447,823
- 16 Castle Street
2 Bed House | 4 m | Est. Value: £360,595
- 14 Castle Street
4 Bed House | 22 m | Est. Value: £739,521
- 24 Castle Street
3 Bed House | 28 m | Est. Value: £557,583
- 21 Castle Street
5 Bed House | 31 m | Est. Value: £1,097,576
Location Comparison
Of the 40 addresses on Castle Street, Ongar, CM5, 18A, Castle Street, Ongar comes out as the 11th largest and the 9th most expensive in our analysis of the public data.
It is also £65k more expensive than the average property across the CM5 district.
More reading links
Schools Nearby
- Chipping Ongar Primary School900 m away
- High Ongar Primary School1.3 km away
- Ongar Primary School1.4 km away
- The Ongar Academy1.5 km away
- Shenfield High School9.2 km away
- Becket Keys Church of England Free School9.3 km away
More reading links
Public Transport Nearby
- Epping|9.3 km away
- Shenfield|9.9 km away
- Ingatestone|10.3 km away
Available Internet Speeds
Broadband here reaches ultrafast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Ultrafast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












