21, Blackwater Close
21, Blackwater Close
Description & Estimates







21, Blackwater Close, Chelmsford is recorded publicly as a mid-century freehold house across 1,323 ft2 of internal area, sitting on a 354 m2 plot.
Locally, houses of this size normally have 4 bedrooms with a garden.
Our estimate of the sale value of 21, Blackwater Close, Chelmsford is £435,083 and its rental estimate is £2,024 per month, given the available information and assuming reasonable condition.
Blackwater Close, Chelmsford, CM1 falls within the CM1 postal district, in the borough of Chelmsford.
Our Data Sources
21, Blackwater Close, Chelmsford has a single entry in the Land Registry from August 2018 and a single entry in the EPC database dated April 2018.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 1 out of 5 and is considered of low accuracy.
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 21, Blackwater Close, Chelmsford, we estimate a market value of £456,837 and a rental value of £2,125 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £404,627 and £1,883 per month respectively.
Recent Market Change
Over the last year, 21, Blackwater Close, Chelmsford has seen its estimated sale value move down by £3,367 (0.8%) and its estimated rental value increase by £70 per month (3.5%). This results in an estimated gross rental yield of 5.6%.
Plot Size
HM Land Registry records the plot of land for 21, Blackwater Close, Chelmsford as measuring 354 m2.
That makes it the largest plot in the postcode, where 25 of the 27 other houses have recorded plot data.
Energy Efficiency
21, Blackwater Close, Chelmsford has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 17 Apr 2018.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of 21, Blackwater Close, Chelmsford completed on 21st August 2018 at £375,000 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 43.8% over the period since August 2018.
- Sold Aug 2018£375,000
Similar Properties Sold Nearby
Over the past 2 years 3 properties similar to 21, Blackwater Close, Chelmsford have sold within a radius of 750 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 6th February 2026, was 119, Waveney Drive, Chelmsford, CM1 7QA, a freehold house which sold for £415,000.
Read more about house prices in CM1.
- Sold Feb 2026£415,000 | 4 Bed House119, Waveney Drive, Chelmsford, CM1 7QA119, Waveney Drive, Chelmsford, CM1 7QA
- Sold Dec 2025£450,000 | 4 Bed House60, Wear Drive, Chelmsford, CM1 7PU60, Wear Drive, Chelmsford, CM1 7PU
- Sold Jan 2022£400,000 | 4 Bed House21, Meon Close, Chelmsford, CM1 7QG21, Meon Close, Chelmsford, CM1 7QG
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 32 addresses on Blackwater Close, Chelmsford, CM1, 21, Blackwater Close, Chelmsford comes out as the 3rd largest and the 4th most expensive in our analysis of the public data.
It is also £20k more expensive than the average property across the CM1 district.
More reading links
Schools Nearby
- 500mPerryfields Infant School
- 500mPerryfields Junior School
- 900mThe Tyrrells School
- 700mThe Boswells School
- 1.2kmSt John Payne Catholic School, Chelmsford
- 1.2kmChelmsford County High School for Girls
More reading links
Public Transport Nearby
From 21, Blackwater Close, Chelmsford, the nearest station is Chelmsford, 1.8 kilometres away.
- 1.8kmChelmsford
- 2.8kmBeaulieu Park
- 8.3kmHatfield Peverel
Available Internet Speeds
Broadband here reaches ultrafast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Ultrafast broadband is available in the area.
Risk of Flooding
The flood risk here is rated very low, based on Environment Agency data.

