12 Coval Avenue, Chelmsford, CM1 1TF
About 12 Coval Avenue
12 Coval Avenue is a three-bedroom semi-detached house in Chelmsford (CM1 1TF). It has a recorded floor area of 128 m² (around 1378 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (March 2021) shows a D (score 66), on the cusp of jumping into the C band. When first surveyed in May 2011 the rating was F, the property has climbed 2 bands since. Between certificates, roof efficiency went from Poor to Average, hot-water efficiency went from Very Poor to Good and lighting went from Very Poor to Good. The recommended improvements would lift it to B (score 82), a 2-band jump. Other recorded features include a conservatory.
At 128 m² the property is well over the postcode median (95 m² across 18 EPCs), placing it in the larger end of the local stock. Across 2012–2021, sale prices on this property compounded at 8.3% per year. Today's modelled estimate of £547,000 is 12.6% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£353/sq ft) was about 60.5% above the typical sold price in the postcode. Last sale on file: £486,000 in September 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. One historical planning record sits against the property in 2017.
What this property has
Inside
- Bedrooms3
- Dining roomYes
- EnsuiteYes
- ConservatoryYes
Outside
- Private gardenRear
- GarageYes
Building
- RefurbishedYes
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Upgraded to gas central heating
Connected to mains gas supply
Heating controls upgraded for better temperature management
Hot water system upgraded
Roof insulation improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, has been extended more than once, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £1,085 · Includes VAT
Planning history
1 application on record at 12 Coval Avenue, Chelmsford, CM1 1TF
- Oct 2017ExtensionFullOutcome in report
Extension: Single storey · Rear of property
The construction of a single storey rear extension, which would extend beyond the rear wall of the original house by a maximum depth of 4m, for which the maximum height would be 3.65m, and for which the height of the eaves would be 2.5m.
- Documents
- 5 docs on file
- Reference
- 17/00088/HHPA
Unlock 12 Coval Avenue, Chelmsford, CM1 1TF's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn
- All 1 application on this property in full, plus 3 notable nearby
- The 5 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
12 Coval Avenue has more than doubled in price since the earliest registered sale in 2012.
£547,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.3% per year over 9 years.
£486,000
Growth on file: 8.3% per year over 9 years.
Sales timeline
29 September 2021Most recent
£486,000
+106.8%over 9 years19 August 2012
£235,000
Median price across the last 5 sales in CM1 1TF: £377,000 (2025–2017).
Nearby sales in CM1 1TF
Versus other Coval Avenue homes
Floor Area for 12 Coval Avenue runs comfortably ahead of the street norm.
Price per m²
£3,797
Street avg £3,030
Floor Area
128 m²
Street avg 110 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
4.2 t/year
Street avg 5.1 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
8/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Fire Station — bus stop.
Closest school
0.5 km
King Edward VI Grammar School, Chelmsford. 30 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
54.8dB

Night-time· 23:00 – 07:00
46.1dB







