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20 Dorset Avenue, Chelmsford, CM2 9TZ

Extendable
Property type
Semi-detached
Bedrooms
5
Bathroom
1
Floor area
153 m²
1647 sq ft
Energy rating
D
Score 63
Council tax
Band D
Tenure
Owner Occupied
Overview

About 20 Dorset Avenue

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

20 Dorset Avenue is a five-bedroom semi-detached house in Chelmsford (CM2 9TZ). It has a recorded floor area of 153 m² (around 1647 sq ft), construction records dating it to 1930-1949 and council tax band D. It has already been extended once and our model flags further extension potential, a sign of buyer flexibility. The latest certificate (October 2024) shows a D (score 63), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 77).

At 153 m² the property is well over the postcode median (105 m² across 23 EPCs), placing it in the larger end of the local stock. It changed hands recently, sold April 2025 for £525,000. Across 2003–2025, sale prices on this property compounded at 2.5% per year. Today's modelled estimate of £608,000 is 15.8% above the 2025 sale price. On a £-per-square-foot basis, the last sale (£319/sq ft) was about 34.6% above the typical sold price in the postcode.

Specifications

What this property has

Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.

Inside

  • Bedrooms5
  • Bathrooms1
  • Dining roomYes
  • CloakroomYes
  • EnsuiteYes

Outside

  • Private gardenSouth-facing

Building

  • Previously extendedYes
  • Extension potentialPossible
Before you decide

Everything you need to know about 20 Dorset Avenue

The true value, the hidden risks and the full sale history, in one report.

Pick your report · every report is £14.99

One time fee only - money back guarantee

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

EPC Rating

A
B
C
D
D63
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
5.0 t/year
Occupancy
Owner Occupied
SDL Surveying

Get a survey for this property

Level 3 Building Survey

Early 20th centurySemi-Detached HouseEPC DExtended multiple times (2+ extensions)Solid (non-cavity) walls

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 £1,155 · Includes VAT

Planning

Planning history

Applications and permits filed against 20 Dorset Avenue, Chelmsford, CM2 9TZ, sourced from the PlanIt planning register.

20 Dorset Avenue has no planning applications on record.

2

But the area is active

2 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.

20 Dorset Avenue valuation sits well clear of the typical sold price in this postcode.

Current estimate

£608,000

Modelled from EPC, postcode comparables and a sale-price growth of 2.5% per year over 21 years.

See how we calculated this
Last sold (2025)

£525,000

Growth on file: 2.5% per year over 21 years.

Sales timeline

  1. 30 April 2025Most recent

    £525,000

    +69.4%over 21 years
  2. 19 November 2003

    £310,000

Median price across the last 5 sales in CM2 9TZ: £565,000 (2025–2021).

On the street

Versus other Dorset Avenue homes

Four headline reads against 23 similar houses on this street, drawn from the latest EPC and Land Registry data.

Floor Area for 20 Dorset Avenue runs comfortably ahead of the street norm.

Price per m²

£3,431

Street avg £3,968

Below

Floor Area

153 m²

Street avg 106 m²

Strongly above

Habitable Rooms

8 rooms

Street avg 5 rooms

Strongly above

CO₂ Emissions

5.0 t/year

Street avg 4.3 t/year

On par
Before you decide

Everything you need to know about 20 Dorset Avenue

The true value, the hidden risks and the full sale history, in one report.

Pick your report · every report is £14.99

One time fee only - money back guarantee

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the Chelmsford district page.

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.

Noise

Road noise across the postcode

Modelled day and night-time noise levels around CM2 9TZ from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for CM2 9TZ

Daytime· 07:00 – 23:00

49.3dB

Low
Night-time road noise heatmap for CM2 9TZ

Night-time· 23:00 – 07:00

39.5dB

Low
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 20 Dorset Avenue, Chelmsford, CM2 9TZ. Each answer is also embedded as structured data for search engines.