11a, Dorset Avenue, Chelmsford, CM2 9TZ
About 11a
11a is a three-bedroom detached house in Chelmsford (CM2 9TZ). It has a recorded floor area of 95 m² (around 1023 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (February 2017) shows an E (score 49), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 80), a 2-band jump. Period features are noted in the property record. Our model identifies extension potential, subject to local planning policy.
It lags the bulk of the postcode on energy efficiency (less efficient than 78% of similar EPCs). On a £-per-square-foot basis, the last sale (£553/sq ft) was about 136.9% above the typical sold price in the postcode. Sold September 2021 for £565,000. 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 2022.
What this property has
Inside
- Bedrooms3
- Bathrooms1
- Dining roomYes
Outside
- Private gardenRear
Building
- Period featuresYes
- Extension potentialPossible
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Get a survey for this property
Level 3 Building Survey
Because the property 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 11a, Dorset Avenue, Chelmsford, CM2 9TZ
- May 2022ExtensionFullOutcome 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 4.3m, for which the maximum height would be 3.4m (parapet), and for which the height of the eaves would be 2.9m.
- Documents
- 7 docs on file
- Reference
- 22/00019/HHPA
Unlock 11a, Dorset Avenue, Chelmsford, CM2 9TZ'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- Every decision — granted, refused or withdrawn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 2 notable nearby
- The 7 documents, officer reports & conditions
- What the pattern means for extending or converting here
One time fee only - money back guarantee
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£581,000
Modelled from EPC, postcode comparables.
£565,000
Recorded with HM Land Registry.
Sales timeline
28 September 2021Most recent
£565,000
Median price across the last 5 sales in CM2 9TZ: £525,000 (2025–2022).
Nearby sales in CM2 9TZ
Versus other Dorset Avenue homes
11a outperforms the street on price per m² by a wide margin.
Price per m²
£5,947
Street avg £3,820
Floor Area
95 m²
Street avg 109 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
5.4 t/year
Street avg 4.3 t/year
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The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
12/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
The Ridings — bus stop.
Closest school
0.4 km
Larkrise Primary School. 21 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
49.3dB

Night-time· 23:00 – 07:00
39.5dB







