121 Blackbush Spring
CM20 3EA
- Terraced
- Freehold
- 3 bedrooms (estimate)
- 883 sq ft
- EPC C
What the sales records show
From its recent sale£355,000
Range £326,000 to £384,000
Since last sale
+£27,000
+8.2% since Feb 2022, +1.7% a year
Rank in CM20 3EA
6th of 29
Postcode average £318,655
There is no floor area on record, so this is the home's last sale moved from February 2022 to August 2026 by the official UK House Price Index for Harlow, with the range widened the older the sale. It cannot see condition, layout or recent work, so it is not a valuation.
In short
121 Blackbush Spring is a 3 bedroom freehold terraced in CM20 of about 883 sq ft.
There is no floor area on record, so its last sale has been moved to today by the official price index for Harlow: £326,000 to £384,000, about £355,000 in the middle.
That makes it the 6th highest of the 29 homes we can compare in CM20 3EA, where the middle figure averages £318,655.
It last sold for £328,000 in February 2022; the price index suggests it has gained about £27,000 since, roughly +1.7% a year.
Across Harlow, average prices rose 4.3% 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
£326,000
Middle
£355,000
Upper end
£384,000
Done work since the records were made? Claim your home and tell us, or ask local agents where yours sits.
The street
Blackbush Spring and its sales
121 Blackbush Spring on the map
This home, the completed sales its figure is worked out from, and the other sales on Blackbush Spring. 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 121 Blackbush Spring compares with Blackbush Spring
Against the 8 completed sales on the street in the last two years
Price
- Its middle figure of £355,000 is 11% above the street's median sale price of £320,370.
- 8 of those 8 sales completed for less than this home's middle figure, and 0 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 Blackbush Spring
Completed sales registered with HM Land Registry, by quarter
- Sales in two years
- 8
- Average price
- £281,530
- Lowest
- £110,000
- Highest
- £351,000
| Quarter | Sales | Median price |
|---|---|---|
| Q1 2025 | 1 | £170,000 |
| Q2 2025 | 1 | £351,000 |
| Q3 2025 | 3 | £315,000 |
| Q4 2025 | 1 | £345,000 |
| Q1 2026 | 2 | £317,750 |
| Q2 2026 | 0 | – |
| Q3 2026 | 0 | – |
| Q4 2026 | 0 | – |
| Type of home | Share of sales | Median price | Per sq ft |
|---|---|---|---|
| Terraced houses | 75% (6) | £326,870 | – |
| Flats | 25% (2) | £140,000 | – |
Completed sales on Blackbush Spring
Every sale in the last two years. Choose an address to see that home's page.
| Address | Sold | Price | Type | Size | Per sq ft |
|---|---|---|---|---|---|
| 152 Blackbush SpringCM20 3ED | Feb 2026 | £328,000 | Terraced | – | – |
| 6 Blackbush SpringCM20 3DY | Jan 2026 | £307,500 | Terraced | – | – |
| 105 Blackbush SpringCM20 3EA | Oct 2025 | £345,000 | Terraced | – | – |
| 126 Blackbush SpringCM20 3EA | Sept 2025 | £315,000 | Terraced | – | – |
| 91 Blackbush SpringCM20 3EA | Sept 2025 | £325,740 | Terraced | – | – |
| 73 Blackbush SpringCM20 3DZ | Aug 2025 | £110,000 | Flat | – | – |
| 144 Blackbush SpringCM20 3EB | Jun 2025 | £351,000 | Terraced | – | – |
| 74 Blackbush SpringCM20 3DZ | Jan 2025 | £170,000 | Flat | – | – |
Energy
How efficient the home is
Energy performance certificate
From the official register for 121 Blackbush Spring, lodged 1 October 2026.
Rating now
C72 points
Could reach
B84 points
12 points higher with the improvements below
- Built
- 1967–1975
- Solar panels
- None recorded
What the assessor found
Each part of the home, with the certificate's own energy efficiency rating.
Walls
Cavity wall, filled cavity
GoodRoof
Pitched, 200 mm loft insulation
GoodFloor
Solid, no insulation (assumed)
Not rated on the certificate
Windows
High performance glazing
GoodHeating
Boiler and radiators, mains gas
GoodHeating controls
Programmer, room thermostat and TRVs
GoodHot water
From main system
GoodLighting
Excellent lighting efficiency
Very good
Estimated running costs
A year, now and after the recommended improvements.
£53 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 (2026), for a typical household. Today's bills will differ.
Improvements the certificate recommends
In the certificate's order. Each rating assumes the steps before it are done.
- 1
Floor insulation (solid floor)
Typical cost £5,000–£10,000 · saves about £53 a year
Rating after74C - 2
Solar photovoltaic panels, 2.5 kWp
Typical cost £8,000–£10,000 · saves about £260 a year
Rating after84B
Costs and savings are the certificate's own, as estimated when it was made.
History
What it has sold for
Sale history
Every sale of this home registered with HM Land Registry since 1995
| Sold | Price paid | Change | A year |
|---|---|---|---|
| February 2022 | £328,000 | +80.7% | +7.1% |
| July 2013 | £181,500 | +166.9% | +6.7% |
| June 1998 | £68,000 | First sale | – |
Nearby
Neighbours and the sales behind the figure
Homes in CM20 3EA
Ranked by what comparable sales show. Choose one to see its page.
Recent sales of terraced homes nearby
The closest sales of the same type in the last two years, registered with HM Land Registry. Choose one to see its page.
| Home | Price | Sold | Size | Per sq ft | Away |
|---|---|---|---|---|---|
| 105 Blackbush SpringCM20 3EA · Terraced | £345,000 | Oct 2025 | – | – | < 0.1 mi |
| 126 Blackbush SpringCM20 3EA · Terraced | £315,000 | Sept 2025 | – | – | < 0.1 mi |
| 91 Blackbush SpringCM20 3EA · Terraced | £325,740 | Sept 2025 | – | – | < 0.1 mi |
| 144 Blackbush SpringCM20 3EB · Terraced | £351,000 | Jun 2025 | – | – | 0.1 mi |
| 152 Blackbush SpringCM20 3ED · Terraced | £328,000 | Feb 2026 | – | – | 0.1 mi |
| 6 Blackbush SpringCM20 3DY · Terraced | £307,500 | Jan 2026 | – | – | 0.1 mi |
| 22 PennymeadCM20 3HU · Terraced | £380,000 | Feb 2026 | – | – | 0.1 mi |
| 15 Vicarage WoodCM20 3HE · Terraced | £282,000 | Apr 2026 | – | – | 0.1 mi |
| 29 TunnmeadeCM20 3HL · Terraced | £350,000 | Jun 2026 | – | – | 0.2 mi |
| 41 PennymeadCM20 3HX · Terraced | £377,000 | Dec 2025 | – | – | 0.2 mi |
| 45 PennymeadCM20 3HX · Terraced | £335,000 | Sept 2025 | – | – | 0.2 mi |
| 82 Cooks SpinneyCM20 3BN · Terraced | £330,000 | Jul 2026 | – | – | 0.2 mi |
The area
CM20 at a glance
What buyers have paid in CM20
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 | 170 | £328,267 | – | – | −41.6% |
| Flats | 61 | £220,289 | – | – | +9.2% |
| Terraced | 84 | £331,128 | – | – | −2.9% |
| Semi-detached | 11 | £448,955 | – | – | +10.9% |
| Detached | 8 | £751,500 | – | – | +37.9% |
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.
Contains HM Land Registry UK House Price Index data © Crown copyright. Licensed under the Open Government Licence v3.0.
Floor area and energy rating from the energy certificate of September 2026.
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