CM20 3SY
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Property report — CM20 3SY
Open-data due diligence for CM20 3SY and the area around it.
CM20 3SY in brief: 53 recorded sales (£44,000–£360,000) · no modelled flood risk · 6 schools nearby.
What scope is each figure? Sold sales, broadband and flood risk are for CM20 3SY itself. Where open data isn't published that finely (population, crime, schools), we show the CM20 3 sector — each figure below is tagged with its scope.
Avg sold price
£305,423
Population
17,503
Crimes recorded
80
Schools
5
Flood risk
None modelled
Gigabit broadband
88%
Sold-price trend (1995–2026)
Annual sold price in CM20 3, 1995–2026 — mean (blue) and median (terracotta). The median is the typical sale; a wide gap to the mean means a few high-value sales pull the average up. 2026 is a part year (26 sales so far). Hover a point for both figures. Source: HM Land Registry Price Paid.
Sold prices on this postcode
| Date | Price | Address | Type |
|---|---|---|---|
| 2026-04-14 | £250,000 | 46 GREEN HILLS | Terraced |
| 2024-03-20 | £310,000 | 45 GREEN HILLS | Terraced |
| 2022-10-27 | £320,000 | 43 GREEN HILLS | Terraced |
| 2022-08-11 | £330,000 | 55 GREEN HILLS | Terraced |
| 2022-03-14 | £360,000 | 39 GREEN HILLS | Terraced |
| 2021-08-25 | £295,000 | 79 GREEN HILLS | Terraced |
| 2021-05-28 | £296,000 | 80 GREEN HILLS | Terraced |
| 2021-03-09 | £280,000 | 42 GREEN HILLS | Semi-detached |
| 2020-07-03 | £257,000 | 75 GREEN HILLS | Terraced |
| 2020-06-11 | £260,000 | 55 GREEN HILLS | Terraced |
| 2019-07-04 | £305,000 | 51 GREEN HILLS | Terraced |
| 2018-08-24 | £278,500 | 80 GREENHILLS | Terraced |
| 2017-04-21 | £253,000 | 75 GREENHILLS | Terraced |
| 2016-09-05 | £266,000 | 82 GREENHILLS | Terraced |
| 2016-03-07 | £240,000 | 67 GREENHILLS | Terraced |
| 2015-10-30 | £230,000 | 45 GREENHILLS | Terraced |
| 2015-05-29 | £240,000 | 59 GREENHILLS | Terraced |
| 2015-02-20 | £207,000 | 55 GREENHILLS | Terraced |
| 2014-12-05 | £192,000 | 44 GREENHILLS | Terraced |
| 2014-09-26 | £187,500 | 46 GREENHILLS | Terraced |
| 2014-08-01 | £205,000 | 39 GREENHILLS | Terraced |
| 2014-04-04 | £147,500 | 46 GREENHILLS | Terraced |
| 2012-07-09 | £155,000 | 70 GREENHILLS | Terraced |
| 2011-07-28 | £168,000 | 59 GREENHILLS | Terraced |
| 2011-06-10 | £165,000 | 39 GREENHILLS | Terraced |
| 2011-05-27 | £167,000 | 82 GREENHILLS | Terraced |
| 2010-05-19 | £165,000 | 50 GREENHILLS | Terraced |
| 2009-11-12 | £142,500 | 44 GREENHILLS | Terraced |
| 2009-11-09 | £166,000 | 82 GREENHILLS | Terraced |
| 2008-08-04 | £116,000 | 57 GREENHILLS | Terraced |
| 2007-08-16 | £164,000 | 72 GREENHILLS | Terraced |
| 2007-07-24 | £150,000 | 75 GREENHILLS | Terraced |
| 2007-06-21 | £170,000 | 51 GREENHILLS | Terraced |
| 2007-04-05 | £151,500 | 58 GREENHILLS | Terraced |
| 2007-02-02 | £161,000 | 67 GREENHILLS | Terraced |
| 2005-12-09 | £160,000 | 51 GREENHILLS | Terraced |
| 2005-10-27 | £149,995 | 46 GREENHILLS | Semi-detached |
| 2005-05-12 | £150,000 | 75 GREENHILLS | Terraced |
| 2005-03-22 | £135,000 | 75 GREENHILLS | Terraced |
| 2004-11-05 | £145,000 | 82 GREENHILLS | Terraced |
| 2004-09-01 | £140,000 | 45 GREENHILLS | Terraced |
| 2004-08-09 | £149,995 | 59 GREENHILLS | Terraced |
| 2003-06-27 | £121,000 | 70 GREENHILLS | Semi-detached |
| 2002-08-16 | £109,000 | 67 GREENHILLS | Terraced |
| 2000-04-20 | £84,000 | 55 GREENHILLS | Terraced |
| 2000-01-21 | £79,500 | 42 GREENHILLS | Semi-detached |
| 1999-03-26 | £65,000 | 45 GREENHILLS | Terraced |
| 1998-05-08 | £60,000 | 67 GREENHILLS | Terraced |
| 1998-04-03 | £59,000 | 70 GREENHILLS | Semi-detached |
| 1998-03-20 | £60,000 | 67 GREENHILLS | Terraced |
| 1996-07-26 | £57,500 | 54 GREENHILLS | Terraced |
| 1995-07-20 | £44,000 | 51 GREENHILLS | Terraced |
| 1995-03-17 | £46,000 | 51 GREENHILLS | Terraced |
53 recorded sales on CM20 3SY. Source: HM Land Registry Price Paid (© Crown copyright). Shown for this postcode only.
Nearest schools
| School | Distance | Phase | Ofsted |
|---|---|---|---|
| The Downs Primary School and Nursery | 0.1 mi | Primary | Report card → |
| Bmat Stem Academy | 0.1 mi | Secondary | Good (2023) |
| St Mark's West Essex Catholic School | 0.3 mi | Secondary | Good (2023) |
| Freshwaters Primary Academy | 0.3 mi | Primary | Report card → |
| William Martin Church of England Junior School | 0.6 mi | Primary | Good (2022) |
| Sir Frederick Gibberd College | 0.6 mi | Secondary | Report card → |
Straight-line distance from the postcode. Ofsted = latest overall effectiveness (newer inspections may be ungraded). Sources: Get Information about Schools (DfE) · Ofsted.
What's nearby
Nearest GP surgeries: SYDENHAM HOUSE SURGERY (0.5 mi) · ADDISON HOUSE - HAQUE PRACTICE (0.5 mi) · NUFFIELD HOUSE HEALTH CENTRE (0.6 mi)
Nearest hospitals: PRINCESS ALEXANDRA HOSPITAL (0.5 mi) · THE PRINCESS ALEXANDRA HOSPITAL (0.6 mi) · PRINCESS ALEXANDRA HOSPITAL (0.6 mi)
Nearest listed buildings: NETTESWELL RECTORY (Grade II) (0.3 mi) · WATER GARDENS (Grade II) (0.3 mi) · Wild boar sculpture (Grade II) (0.3 mi)
Nearest pharmacies: BOOTS (0.3 mi) · NETTESWELL PHARMACY (0.5 mi) · HARLOW TOWN PHARMACY (0.5 mi)
Nearest stations: Harlow Town (0.9 mi) · Harlow Mill (2.0 mi) · Roydon (2.8 mi)
Nearest supermarkets: Asda (0.2 mi) · Mini Delikatesy Kubus (0.4 mi) · Sainsbury's (0.5 mi)
Straight-line distance from the postcode. Source: NaPTAN (DfT).
Who lives here
- Median age
- 36
- One-person households
- 33%
- Households with children
- 32%
- Households
- 7,370
Owned 40% · Social rent 38% · Private rent 20%
Census 2021 (ONS), for CM20 3.
Recorded crime trend
Recorded crimes per month in CM20 3 (May 24–Apr 26, average 91/month). Hover a point to read the count. Source: Police.uk street-level data.
Flood risk
No modelled flood risk is recorded for CM20 3SY in the Environment Agency dataset. This is reassuring but not a guarantee — Check the exact address on the official Environment Agency map →
Source: Environment Agency Risk of Flooding from Rivers and Sea (the official dataset name). Indicative catchment data, not an official property flood search.
How granular is this?
| Measure | DistrictCM20 | SectorCM20 3 | PostcodeCM20 3SY |
|---|---|---|---|
| Average sold price | £349,151 | £305,423 | £180,481 |
| Population | 39,122 | 17,503 | — |
| Deprivation decile (1 = most deprived) | 4/10 | 4/10 | — |
| Crimes recorded | 406 | 80 | — |
| Schools | 10 | 5 | — |
| Flood risk | High | Low | Low |
| Gigabit broadband | 66% | 88% | 100% |
| Superfast broadband | 89% | 99% | 100% |
— = no separate figure is published at that level. Most open data is published down to the sector (CM20 3); the postcode column is built from the layers that go finer (sold transactions, Ofcom broadband). Sources: HM Land Registry · Police.uk · Ofsted/GIAS · ONS & IoD2025 · Environment Agency · Ofcom.
Your next steps
Get the official title document
The HM Land Registry title register shows the legal owner, price paid and any charges or covenants. Official copy, £7.
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Report generated 30 June 2026. Open data is refreshed periodically; HM Land Registry Price Paid typically lags by around two months, so the most recent sales may not appear yet.
Contains OS data © Crown copyright and database right 2026
Contains Royal Mail data © Royal Mail copyright and database right 2026
Contains National Statistics data © Crown copyright and database right 2026
Indicative due diligence compiled from public open data. Not a substitute for a regulated conveyancing or property search, a survey, or professional advice.