AL6 9AU
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Property report — AL6 9AU
Open-data due diligence for AL6 9AU and the area around it.
AL6 9AU in brief: 81 recorded sales (£56,000–£413,000) · no modelled flood risk · 6 schools nearby.
What scope is each figure? Sold sales, broadband and flood risk are for AL6 9AU itself. Where open data isn't published that finely (population, crime, schools), we show the AL6 9 sector — each figure below is tagged with its scope.
Avg sold price
£679,147
Population
17,409
Crimes recorded
18
Schools
2
Flood risk
None modelled
Gigabit broadband
85%
Sold-price trend (1995–2026)
Annual sold price in AL6 9, 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 (17 sales so far). Hover a point for both figures. Source: HM Land Registry Price Paid.
Sold prices on this postcode
| Date | Price | Address | Type |
|---|---|---|---|
| 2025-10-29 | £310,000 | 1 ST MARYS COURT | Flat |
| 2024-11-15 | £295,000 | 11 ST MARYS COURT | Terraced |
| 2024-03-24 | £365,000 | 21 ST MARYS COURT | Terraced |
| 2024-02-27 | £368,000 | 23 ST MARYS COURT | Terraced |
| 2023-01-25 | £235,000 | 1 ST MARYS COURT | Flat |
| 2022-05-19 | £195,000 | 6 ST MARYS COURT | Terraced |
| 2022-01-28 | £410,000 | 20 ST MARYS COURT | Terraced |
| 2021-09-17 | £335,000 | 14 ST MARYS COURT | Terraced |
| 2021-08-20 | £413,000 | 25 ST MARYS COURT | Terraced |
| 2021-07-20 | £202,500 | 17 ST MARYS COURT | Flat |
| 2020-08-21 | £282,000 | 15 ST MARYS COURT | Flat |
| 2019-12-19 | £375,000 | 16 ST MARYS COURT | Semi-detached |
| 2019-08-30 | £200,000 | 4 ST MARYS COURT | Flat |
| 2019-08-02 | £207,500 | 12 ST MARYS COURT | Terraced |
| 2019-02-01 | £250,000 | 37 ST MARYS COURT | Flat |
| 2018-10-09 | £350,000 | 27 ST MARYS COURT | Terraced |
| 2018-08-23 | £370,000 | 28 ST MARYS COURT | Terraced |
| 2018-07-04 | £220,000 | 38 ST MARYS COURT | Flat |
| 2018-05-11 | £175,000 | 36 ST MARYS COURT | Flat |
| 2018-04-16 | £340,000 | 22 ST MARYS COURT | Terraced |
| 2017-09-01 | £200,000 | 2 ST MARYS COURT | Flat |
| 2017-07-14 | £200,000 | 7 ST MARYS COURT | Terraced |
| 2017-04-28 | £330,000 | 20 ST MARYS COURT | Terraced |
| 2017-01-18 | £195,000 | 35 ST MARYS COURT | Flat |
| 2016-08-26 | £175,000 | 3 ST MARYS COURT | Flat |
| 2014-10-01 | £152,500 | 13 ST MARYS COURT | Terraced |
| 2014-09-04 | £160,000 | 12 ST MARYS COURT | Terraced |
| 2014-05-02 | £250,000 | 22 ST MARYS COURT | Terraced |
| 2013-05-22 | £287,500 | 25 ST MARYS COURT | Terraced |
| 2013-05-10 | £285,000 | 23 ST MARYS COURT | Terraced |
| 2013-04-19 | £285,000 | 20 ST MARYS COURT | Terraced |
| 2012-07-27 | £285,000 | 10 ST MARYS COURT | Semi-detached |
| 2012-05-31 | £280,000 | 32 ST MARYS COURT | Terraced |
| 2012-05-11 | £250,000 | 31 ST MARYS COURT | Terraced |
| 2012-04-04 | £150,000 | 38 ST MARYS COURT | Flat |
| 2011-11-29 | £292,500 | 18 ST MARYS COURT | Terraced |
| 2011-10-31 | £290,000 | 24 ST MARYS COURT | Terraced |
| 2011-09-16 | £220,000 | 28 ST MARYS COURT | Terraced |
| 2011-06-23 | £159,950 | 37 ST MARYS COURT | Flat |
| 2011-02-04 | £265,000 | 33 ST MARYS COURT | Terraced |
| 2010-08-26 | £192,500 | 8 ST MARYS COURT | Terraced |
| 2009-12-10 | £275,000 | 30 ST MARYS COURT | Terraced |
| 2009-08-18 | £217,500 | 14 ST MARYS COURT | Terraced |
| 2009-07-02 | £225,000 | 21 ST MARYS COURT | Terraced |
| 2009-06-26 | £159,000 | 7 ST MARYS COURT | Terraced |
| 2009-04-13 | £117,500 | 13 ST MARYS COURT | Terraced |
| 2008-02-25 | £275,000 | 24 ST MARYS COURT | Semi-detached |
| 2008-01-10 | £245,000 | 27 ST MARYS COURT | Terraced |
| 2007-11-15 | £265,000 | 18 ST MARYS COURT | Semi-detached |
| 2007-06-25 | £176,000 | 34 ST MARYS COURT | Flat |
| 2007-04-12 | £229,950 | 14 ST MARYS COURT | Terraced |
| 2007-01-05 | £135,000 | 36 ST MARYS COURT | Flat |
| 2006-12-20 | £237,500 | 30 ST MARYS COURT | Terraced |
| 2006-12-04 | £135,000 | 4 ST MARYS COURT | Flat |
| 2006-07-20 | £240,000 | 19 ST MARYS COURT | Semi-detached |
| 2005-12-15 | £139,950 | 12 ST MARYS COURT | Terraced |
| 2004-07-19 | £215,000 | 11 ST MARYS COURT | Terraced |
| 2004-04-07 | £124,500 | 1 ST MARYS COURT | Flat |
| 2002-09-11 | £205,000 | 18 ST MARYS COURT | Semi-detached |
| 2002-04-11 | £160,000 | 11 ST MARYS COURT | Terraced |
| 2002-02-15 | £110,000 | 12 ST MARYS COURT | Terraced |
| 2001-09-07 | £150,000 | 14 ST MARYS COURT | Terraced |
| 2001-08-10 | £81,995 | 3 ST MARYS COURT | Flat |
| 2001-06-08 | £98,000 | 2 ST MARYS COURT | Flat |
| 2000-12-14 | £170,000 | 16 ST MARYS COURT | Semi-detached |
| 2000-11-07 | £120,000 | 8 ST MARYS COURT | Terraced |
| 2000-05-24 | £150,000 | 1 ST MARYS COURT | Flat |
| 2000-01-12 | £153,000 | 24 ST MARYS COURT | Semi-detached |
| 1999-11-19 | £89,000 | 15 ST MARYS COURT | Flat |
| 1999-10-29 | £137,500 | 24 ST MARYS COURT | Semi-detached |
| 1998-11-12 | £130,000 | 32 ST MARYS COURT | Terraced |
| 1998-08-07 | £64,000 | 36 ST MARYS COURT | Flat |
| 1998-07-16 | £130,000 | 23 ST MARYS COURT | Terraced |
| 1997-08-28 | £82,000 | 11 ST MARYS COURT | Terraced |
| 1997-05-09 | £78,000 | 34 ST MARYS COURT | Flat |
| 1997-02-19 | £79,950 | 8 ST MARYS COURT | Terraced |
| 1996-11-28 | £108,000 | 32 ST MARYS COURT | Terraced |
| 1996-09-20 | £67,000 | 7 ST MARYS COURT | Terraced |
| 1996-07-26 | £84,000 | 26 ST MARYS COURT | Flat |
| 1995-09-13 | £56,000 | 7 ST MARYS COURT | Terraced |
| 1995-05-22 | £100,000 | 9 ST MARYS COURT | Semi-detached |
81 recorded sales on AL6 9AU. Source: HM Land Registry Price Paid (© Crown copyright). Shown for this postcode only.
Nearest schools
| School | Distance | Phase | Ofsted |
|---|---|---|---|
| Welwyn St Mary's Church of England Voluntary Aided Primary School | 0.1 mi | Primary | Report card → |
| Monk's Walk School | 0.5 mi | Secondary | Report card → |
| Homerswood Primary and Nursery School | 0.9 mi | Primary | Report card → |
| Harwood Hill Junior Mixed Infant and Nursery School | 1.0 mi | Primary | Report card → |
| Templewood Primary School | 1.2 mi | Primary | Good (2023) |
| Oaklands Primary School | 1.3 mi | Primary | Good (2023) |
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: BRIDGE COTTAGE SURGERY (0.2 mi) · THE GARDEN CITY PRACTICE (2.1 mi) · PEARTREE LANE SURGERY (2.2 mi)
Nearest hospitals: NEW QEII HOSPITAL CDC (3.2 mi) · NEW QE2 HOSPITAL (3.2 mi) · QUEEN ELIZABETH I I HOSPITAL (3.2 mi)
Nearest listed buildings: THE RECTORY (Grade II) (0.1 mi) · SURGERY (Grade II) (0.1 mi) · LITTLE CHEQUERS (Grade II) (0.1 mi)
Nearest pharmacies: BARNES PHARMACY (0.2 mi) · KNIGHTSFIELD PHARMACY (1.0 mi) · CODICOTE PHARMACY (1.6 mi)
Nearest stations: Welwyn North (1.0 mi) · Welwyn Garden City (1.9 mi) · Knebworth (3.0 mi)
Nearest supermarkets: Co-operative Knightsfield (1.0 mi) · Waitrose (1.7 mi) · Sainsbury's (1.8 mi)
Straight-line distance from the postcode. Source: NaPTAN (DfT).
Who lives here
- Median age
- 47
- One-person households
- 27%
- Households with children
- 28%
- Households
- 7,108
Owned 75% · Social rent 11% · Private rent 10%
Census 2021 (ONS), for AL6 9.
Recorded crime trend
Recorded crimes per month in AL6 9 (May 24–Apr 26, average 31/month). Hover a point to read the count. Source: Police.uk street-level data.
Flood risk
No modelled flood risk is recorded for AL6 9AU 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 | DistrictAL6 | SectorAL6 9 | PostcodeAL6 9AU |
|---|---|---|---|
| Average sold price | £762,362 | £679,147 | £207,633 |
| Population | 30,904 | 17,409 | — |
| Deprivation decile (1 = most deprived) | 8/10 | 8/10 | — |
| Crimes recorded | 27 | 18 | — |
| Schools | 6 | 2 | — |
| Flood risk | High | High | Low |
| Gigabit broadband | 63% | 85% | 100% |
| Superfast broadband | 94% | 94% | 100% |
— = no separate figure is published at that level. Most open data is published down to the sector (AL6 9); 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.
View the title document at HM Land Registry →Compare conveyancing quotes
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Report generated 1 July 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.