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Registered Address: 2 Leman St, London E1 8FA
CM20 3DZHouse Prices / East of England, Harlow, Blackbush Spring
Last updated May 2026
Key Postcode Insights
CM20 3DZ is a residential postcode situated on Blackbush Spring, Harlow, CM20 with 26 addresses.
It ranks as the 266th largest and 179th most expensive of the 474 postcodes in the CM20 area. The dominant property type is a mid-century flat built between 1936 and 1979.
The postcode contains a total of 26 properties: 14 houses and 12 flats.
26
Properties
- Houses
- Flats
Key Postcode Insights
CM20 3DZ is a residential postcode situated on Blackbush Spring, Harlow, CM20 with 26 addresses.
It ranks as the 266th largest and 179th most expensive of the 474 postcodes in the CM20 area. The dominant property type is a mid-century flat built between 1936 and 1979.
The postcode contains a total of 26 properties: 14 houses and 12 flats.
26
Properties
- Houses
- Flats
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House Pricesin CM20 3DZ
Sale prices range from £144,640 for 1 bedroom leasehold flats (387 ft2) to £347,072 for 3 bedroom freehold houses with a garden (1,033 ft2) .
Monthly rental prices range from £920 pcm for 1 bed flats to £1,666 pcm for 3 bed houses.
The gross rental yield is between 5.8% and 7.9%.
The average value per square foot is £371.
Average Sale Value
£247,589
Average Rental Value
£1,353 pcm
Average Rental Yield
6.6% /year
Average Value Per Sqft
£371 /ft2
Sales Market Trendsin CM20 3DZ
The last sale in CM20 3DZ sold for £110,000 on 20th August 2025. Since then prices are up an average of 0.2%.
The current average value in the postcode is £247,589.
The CM20 3DZ Sales Market has increased by 20.2% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| April 2026 | 0.4% | £247,589 |
| April 2025 | 1.5% | £246,580 |
| April 2024 | -2.5% | £242,990 |
| April 2023 | 1.2% | £249,130 |
| April 2022 | 7.2% | £246,083 |
| April 2021 | 2.3% | £229,609 |
| April 2020 | -0.3% | £224,466 |
| April 2019 | 0.3% | £225,237 |
| April 2018 | 1% | £224,542 |
| April 2017 | 7.9% | £222,408 |
| April 2016 | 14.2% | £206,053 |
| April 2015 | 13.8% | £180,503 |
| April 2014 | 10.1% | £158,618 |
| April 2013 | 1.3% | £144,031 |
| April 2012 | 1.4% | £142,177 |
| April 2011 | -0.2% | £140,267 |
| April 2010 | 4.5% | £140,584 |
| April 2009 | -14.7% | £134,510 |
| April 2008 | 3.4% | £157,745 |
| April 2007 | 0% | £152,510 |
Rental Market Trendsin CM20 3DZ
The current average rental value in the postcode is £1,353.
The CM20 3DZ Rental Market has increased by 46.6% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| April 2026 | 3.3% | £1,353pcm |
| April 2025 | 5.4% | £1,310pcm |
| April 2024 | 11.8% | £1,243pcm |
| April 2023 | 9.7% | £1,112pcm |
| April 2022 | 4.9% | £1,013pcm |
| April 2021 | 0.3% | £966pcm |
| April 2020 | 1.8% | £963pcm |
| April 2019 | 2.1% | £946pcm |
| April 2018 | 0.6% | £926pcm |
| April 2017 | -0.2% | £921pcm |
| April 2016 | 7% | £923pcm |
| April 2015 | 9.5% | £862pcm |
| April 2014 | 1.8% | £787pcm |
| April 2013 | 2.3% | £773pcm |
| April 2012 | 3.7% | £756pcm |
| April 2011 | 1.7% | £729pcm |
| April 2010 | 3.1% | £717pcm |
| April 2009 | -3.2% | £695pcm |
| April 2008 | 3% | £718pcm |
| April 2007 | 0% | £697pcm |
Explore Propertiesin CM20 3DZ, Blackbush Spring, Harlow, CM20
- 55, Blackbush Spring, Harlow, CM20 3DZ
- 56, Blackbush Spring, Harlow, CM20 3DZ3 bed mid-century house
- 57, Blackbush Spring, Harlow, CM20 3DZ
- 58, Blackbush Spring, Harlow, CM20 3DZ3 bed mid-century house
- 59, Blackbush Spring, Harlow, CM20 3DZ3 bed mid-century house
- 60, Blackbush Spring, Harlow, CM20 3DZ
- 61, Blackbush Spring, Harlow, CM20 3DZ3 bed mid-century house
- 62, Blackbush Spring, Harlow, CM20 3DZ3 bed mid-century house
- 63, Blackbush Spring, Harlow, CM20 3DZ3 bed mid-century flat
- 64, Blackbush Spring, Harlow, CM20 3DZ
- 65, Blackbush Spring, Harlow, CM20 3DZ3 bed mid-century flat
- 66, Blackbush Spring, Harlow, CM20 3DZ3 bed mid-century flat
- 67, Blackbush Spring, Harlow, CM20 3DZ3 bed mid-century flat
- 68, Blackbush Spring, Harlow, CM20 3DZ3 bed mid-century flat
- 69, Blackbush Spring, Harlow, CM20 3DZ1 bed mid-century flat
- 70, Blackbush Spring, Harlow, CM20 3DZ1 bed mid-century flat
- 71, Blackbush Spring, Harlow, CM20 3DZ1 bed mid-century flat
- 72, Blackbush Spring, Harlow, CM20 3DZ1 bed mid-century flat
- 73, Blackbush Spring, Harlow, CM20 3DZ1 bed mid-century flat
- 74, Blackbush Spring, Harlow, CM20 3DZ2 bed mid-century flat
- 75, Blackbush Spring, Harlow, CM20 3DZ3 bed mid-century house
- 76, Blackbush Spring, Harlow, CM20 3DZ
- 77, Blackbush Spring, Harlow, CM20 3DZ3 bed mid-century house
- 78, Blackbush Spring, Harlow, CM20 3DZ
- 79, Blackbush Spring, Harlow, CM20 3DZ2 bed mid-century house
- 80, Blackbush Spring, Harlow, CM20 3DZ3 bed mid-century house
Sales Historyin CM20 3DZ
The last sale was on 20th August 2025 for £110,000 and since then the market in the area has increased by 0.2%. The postcode has had a total of 25 sales since 1995.
CM20 3DZ has seen 4 sales in the last three years and 1 sale in the last twelve months.
Sold Aug 2025£110,000 | 1 Bed FlatBlackbush Spring73, Blackbush Spring, Harlow, CM20 3DZ
Sold Jan 2025£170,000 | 2 Bed FlatBlackbush Spring74, Blackbush Spring, Harlow, CM20 3DZ
Sold Dec 2023£245,000 | 3 Bed FlatBlackbush Spring66, Blackbush Spring, Harlow, CM20 3DZ
Sold Jul 2023£285,000 | 3 Bed FlatBlackbush Spring63, Blackbush Spring, Harlow, CM20 3DZ
Sold Aug 2022£174,000 | 1 Bed FlatBlackbush Spring70, Blackbush Spring, Harlow, CM20 3DZ
Sold Jan 2022£163,000 | 1 Bed FlatBlackbush Spring73, Blackbush Spring, Harlow, CM20 3DZ
Sold Sep 2019£155,000 | 1 Bed FlatBlackbush Spring73, Blackbush Spring, Harlow, CM20 3DZ
Sold Oct 2015£97,000 | 1 Bed FlatBlackbush Spring70, Blackbush Spring, Harlow, CM20 3DZ
Sold Aug 2015£129,000 | 2 Bed FlatBlackbush Spring74, Blackbush Spring, Harlow, CM20 3DZ
Sold Jul 2014£110,000 | 1 Bed FlatBlackbush Spring69, Blackbush Spring, Harlow, CM20 3DZ
Sold May 2014£210,000 | 3 Bed HouseBlackbush Spring75, Blackbush Spring, Harlow, CM20 3DZ
Sold Mar 2010£50,740 | 3 Bed HouseBlackbush Spring80, Blackbush Spring, Harlow, CM20 3DZ
Sold Jun 2005£94,500 | 1 Bed FlatBlackbush Spring70, Blackbush Spring, Harlow, CM20 3DZ
Sold Jan 2005£78,000 | 1 Bed FlatBlackbush Spring70, Blackbush Spring, Harlow, CM20 3DZ
Sold Oct 2003£97,500 | 1 Bed FlatBlackbush Spring69, Blackbush Spring, Harlow, CM20 3DZ
Sold Oct 2002£119,950 | 2 Bed HouseBlackbush Spring79, Blackbush Spring, Harlow, CM20 3DZ
Sold Aug 2002£111,500 | 3 Bed HouseBlackbush Spring80, Blackbush Spring, Harlow, CM20 3DZ
Sold Jun 2002£65,000 | 1 Bed FlatBlackbush Spring70, Blackbush Spring, Harlow, CM20 3DZ
Sold Mar 2002£53,500 | 1 Bed FlatBlackbush Spring73, Blackbush Spring, Harlow, CM20 3DZ
Sold Jan 2001£46,750 | 1 Bed FlatBlackbush Spring73, Blackbush Spring, Harlow, CM20 3DZ
Sold Sep 2000£53,500 | 1 Bed FlatBlackbush Spring69, Blackbush Spring, Harlow, CM20 3DZ
Sold Mar 1999£58,950 | 2 Bed HouseBlackbush Spring79, Blackbush Spring, Harlow, CM20 3DZ
Sold Feb 1999£40,500 | 1 Bed FlatBlackbush Spring69, Blackbush Spring, Harlow, CM20 3DZ
Sold Feb 1998£36,000 | 2 Bed FlatBlackbush Spring74, Blackbush Spring, Harlow, CM20 3DZ
Sold Jun 1997£53,000 | 3 Bed HouseBlackbush Spring76, Blackbush Spring, Harlow, CM20 3DZ
Nearby Postcodesto CM20 3DZ
CM20 3DZ is the 266th largest and the 179th most expensive postcode out of the 474 postcodes in the CM20 area.
- 67 mCM20 3HH, Vicarage Wood, Harlow, CM20CM20 3HH20 Addresses
- 74 mCM20 3ED, Blackbush Spring, Harlow, CM20CM20 3ED6 Addresses
- 89 mCM20 3EA, Blackbush Spring, Harlow, CM20CM20 3EA52 Addresses
- 95 mCM20 3HQ, Vicarage Wood, Harlow, CM20CM20 3HQ26 Addresses
- 98 mCM20 3DY, Blackbush Spring, Harlow, CM20CM20 3DY54 Addresses
- 122 mCM20 3EB, Blackbush Spring, Harlow, CM20CM20 3EB19 Addresses
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Property Typesin CM20 3DZ
- 9 mid-century houses built between 1936 and 1979
- 11 mid-century flats built between 1936 and 1979
- 6 other addresses of unknown type
- mid-century house (9)
- mid-century flat (11)
- Unknown (6)
Energy Efficiencyof properties in CM20 3DZ
- Energy Performance Certificate (EPC) surveys conducted for 20 properties.
- The dominant rating is D.
- A (0)
- E (1)
- B (1)
- F (0)
- C (5)
- G (0)
- D (13)
- No EPC (6)
Top 3 Most Expensive Saleson Blackbush Spring
Schools Nearbyto CM20 3DZ
The nearest primary school to CM20 3DZ is Cooks Spinney Primary Academy and Nursery which is 208 metres away.
- 208mCooks Spinney Primary Academy and Nursery
- 710mSt Alban's Catholic Academy
- 771mFreshwaters Primary Academy
The nearest secondary school is Burnt Mill Academy which is 777 metres away.
- 777mBurnt Mill Academy
- 1.2kmBmat Stem Academy
- 1.2kmMark Hall Academy
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Public Transport Nearbyto CM20 3DZ
The closest station to CM20 3DZ is Harlow Town station which is 1.8 kilometres away.
- 1.8kmHarlow Town
- 2.3kmHarlow Mill
- 5.5kmRoydon
- 5.6kmSawbridgeworth
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