20 Dunn Side
CM1 1BY
- Flat
- 700 sq ft
- EPC B
What comparable sales show
Strong match£267,000
Range £235,000 to £299,000 · £382 per sq ft
Rank in CM1 1BY
36th of 48
Postcode average £318,688
From completed sales of similar homes nearby, adjusted for floor area. It cannot see condition, layout or recent work, so it is not a valuation.
In short
20 Dunn Side is a flat in CM1 of about 700 sq ft.
Comparable completed sales nearby put it at £235,000 to £299,000, about £267,000 in the middle.
That makes it the 36th highest of the 48 homes we can compare in CM1 1BY, where the middle figure averages £318,688.
Across Chelmsford, average prices fell 2.4% in the year to August 2026.
Where in the range would yours sell?
Condition and improvements usually decide it, and only someone who sees the home can say.
Lower end
£235,000
Middle
£267,000
Upper end
£299,000
Done work since the records were made? Claim your home and tell us, or ask local agents where yours sits.
The street
Dunn Side and its sales
20 Dunn Side on the map
This home, the completed sales its figure is worked out from, and the other sales on Dunn Side. Choose a pin for the address, size and date.
The Land Registry records a sale by its postcode, so pins sit at the postcode, close to the home, not on its doorstep. Map: contains OS data © Crown copyright and database rights 2026.
How 20 Dunn Side compares with Dunn Side
Against the 11 completed sales on the street in the last two years
Price
Size
Per sq ft
- Its middle figure of £267,000 is 14% below the street's median sale price of £311,000.
- At 700 sq ft it is 23% below the median size of the homes sold here, 904 sq ft.
- That is £382 per sq ft, 8% above the street's median of £353 per sq ft.
- 4 of those 11 sales completed for less than this home's middle figure, and 7 for the same or more.
A comparison of completed sales, not a valuation: it cannot see condition, layout or work done since a home last sold.
Sales activity on Dunn Side
Completed sales registered with HM Land Registry, by quarter
- Sales in two years
- 11
- Average price
- £302,609
- Lowest
- £212,700
- Highest
- £525,000
| Quarter | Sales | Median price |
|---|---|---|
| Q1 2025 | 2 | £320,000 |
| Q2 2025 | 3 | £311,000 |
| Q3 2025 | 0 | – |
| Q4 2025 | 1 | £212,700 |
| Q1 2026 | 3 | £285,000 |
| Q2 2026 | 1 | £525,000 |
| Q3 2026 | 0 | – |
| Q4 2026 | 0 | – |
| Type of home | Share of sales | Median price | Per sq ft |
|---|---|---|---|
| Flats | 82% (9) | £311,000 | £365 |
| Terraced houses | 18% (2) | £368,850 | – |
Completed sales on Dunn Side
Every sale in the last two years. Choose an address to see that home's page.
| Address | Sold | Price | Type | Size | Per sq ft |
|---|---|---|---|---|---|
| 37 Dunn SideCM1 1DL | Jun 2026 | £525,000 | Terraced | 1,485 sq ft | £353 |
| 50 Dunn SideCM1 1BY | Mar 2026 | £285,000 | Flat | – | – |
| 14 Dunn SideCM1 1BY | Mar 2026 | £265,000 | Flat | 689 sq ft | £385 |
| 121 Dunn SideCM1 1DL | Feb 2026 | £312,000 | Flat | 904 sq ft | £345 |
| 21 Dunn SideCM1 1DL | Dec 2025 | £212,700 | Terraced | – | – |
| 79 Dunn SideCM1 1DL | Jun 2025 | £311,000 | Flat | – | – |
| 58 Dunn SideCM1 1BY | Jun 2025 | £316,000 | Flat | – | – |
| 106 Dunn SideCM1 1BY | May 2025 | £232,000 | Flat | – | – |
| 113 Dunn SideCM1 1DL | Mar 2025 | £315,000 | Flat | – | – |
| 108 Dunn SideCM1 1BY | Feb 2025 | £325,000 | Flat | – | – |
| 75 Dunn SideCM1 1DL | Nov 2024 | £230,000 | Flat | – | – |
Energy
How efficient the home is
Energy performance certificate
From the official register for 20 Dunn Side, lodged 21 January 2015.
Rating now
B82 points
Could reach
B82 points
- Solar panels
- None recorded
What the assessor found
Each part of the home, with the certificate's own energy efficiency rating.
Heating
Boiler and radiators, mains gas
GoodHeating controls
Programmer, room thermostat and TRVs
GoodHot water
From main system
GoodLighting
Low energy lighting in all fixed outlets
Very good
Estimated running costs
A year, now and after the recommended improvements.
£1 a year less after the improvements
Heating
Hot water
Lighting
The assessor's estimates at the energy prices in use when the certificate was made (2015), for a typical household. Today's bills will differ.
History
What it has sold for
Sale history
Every sale of this home registered with HM Land Registry since 1995
No sale of this home has been registered since 1995.
Nearby
Neighbours and the sales behind the figure
Homes in CM1 1BY
Ranked by what comparable sales show. Choose one to see its page.
The completed sales behind the figure
Similar homes nearby, registered with HM Land Registry. Choose one to see its page.
| Home | Price | Sold | Size | Per sq ft | Away |
|---|---|---|---|---|---|
| 14 Dunn SideCM1 1BY · Flat | £265,000 | Mar 2026 | 689 sq ft | £385 | < 0.1 mi |
| 178 Watson HeightsCM1 1AP · Flat | £295,000 | Mar 2026 | 753 sq ft | £392 | < 0.1 mi |
| Flat 12, 3 Cunard SquareCM1 1AU · Flat | £285,000 | Jul 2026 | 764 sq ft | £373 | 0.1 mi |
| 134 Watson HeightsCM1 1AF · Flat | £235,000 | Apr 2026 | 764 sq ft | £307 | 0.1 mi |
| 43 Victoria CourtCM1 1GL · Flat | £138,204 | Jul 2026 | 743 sq ft | £186 | 0.2 mi |
| 144 Watson HeightsCM1 1AP · Flat | £310,000 | Dec 2025 | 753 sq ft | £411 | < 0.1 mi |
| 40 Watson HeightsCM1 1AF · Flat | £275,000 | Jun 2026 | 818 sq ft | £336 | 0.1 mi |
| Flat 51, 3 Cunard SquareCM1 1AU · Flat | £325,000 | Apr 2026 | 775 sq ft | £419 | 0.1 mi |
| 21 Glebe RoadCM1 1QG · Flat | £238,000 | Mar 2026 | 657 sq ft | £362 | 0.1 mi |
| 310 Durrant CourtCM1 1UE · Flat | £210,000 | Jul 2026 | 624 sq ft | £336 | 0.2 mi |
| 244 Watson HeightsCM1 1AP · Flat | £285,000 | May 2026 | 915 sq ft | £311 | < 0.1 mi |
| 10, Allen House Victoria RoadCM1 1PU · Flat | £330,000 | Feb 2026 | 710 sq ft | £465 | 0.2 mi |
The area
CM1 at a glance
What buyers have paid in CM1
Completed sales in the last 12 months, against the 12 months before
Flats
Terraced
Semi-detached
Detached
| Type | Sales | Average price | Average size | Per sq ft | On the year |
|---|---|---|---|---|---|
| All homes | 523 | £460,080 | 982 sq ft | £424 | +4.2% |
| Flats | 136 | £211,117 | 612 sq ft | £349 | −7.9% |
| Terraced | 112 | £373,330 | 913 sq ft | £426 | −4.1% |
| Semi-detached | 152 | £438,593 | 979 sq ft | £458 | −2.3% |
| Detached | 110 | £664,477 | 1,498 sq ft | £466 | +1.0% |
Find another home
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Contains HM Land Registry data © Crown copyright and database right 2026. Licensed under the Open Government Licence v3.0.
Energy performance data © Crown copyright. Licensed under the Open Government Licence v3.0.
Floor area and energy rating from the energy certificate of January 2015.
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