SG3 6SG
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Property report — SG3 6SG
Open-data due diligence for SG3 6SG and the area around it.
SG3 6SG in brief: 1 recorded sale (£2,600,000–£2,600,000) · no modelled flood risk · 6 schools nearby.
What scope is each figure? Sold sales, broadband and flood risk are for SG3 6SG itself. Where open data isn't published that finely (population, crime, schools), we show the SG3 6 sector — each figure below is tagged with its scope.
Avg sold price
£492,177
Population
11,638
Crimes recorded
32
Schools
3
Flood risk
None modelled
Gigabit broadband
74%
Sold-price trend (1995–2026)
Annual average (mean) sold price in SG3 6, 1995–2026. 2026 is a part year (25 sales so far) — shown greyed. Hover a point to read its value. Source: HM Land Registry Price Paid.
Sold prices on this postcode
| Date | Price | Address | Type |
|---|---|---|---|
| 2007-08-23 | £2,600,000 | MARDLEYBURY MANOR MARDLEYBURY ROAD | Detached |
1 recorded sale on SG3 6SG. Source: HM Land Registry Price Paid (© Crown copyright). Shown for this postcode only.
Nearest schools
| School | Distance | Phase | Ofsted |
|---|---|---|---|
| St Michael's Woolmer Green CofE VA Primary School | 0.4 mi | Primary | Report card → |
| All Saints Church of England Voluntary Aided Primary School, Datchworth | 0.6 mi | Primary | Good (2024) |
| Knebworth Primary and Nursery School | 1.0 mi | Primary | Report card → |
| Oaklands Primary School | 1.2 mi | Primary | Good (2023) |
| Shephalbury Park Primary School | 2.2 mi | Primary | Good (2022) |
| Longmeadow Primary School | 2.3 mi | Primary | 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: KNEBWORTH & MARYMEAD PRACTICE (1.1 mi) · BRIDGE COTTAGE SURGERY (2.3 mi) · WATTON PLACE CLINIC (2.5 mi)
Nearest hospitals: NEW QEII HOSPITAL CDC (4.7 mi) · NEW QE2 HOSPITAL (4.7 mi) · QUEEN ELIZABETH I I HOSPITAL (4.7 mi)
Nearest listed buildings: MARDLEYBURY FARM BARN ON SOUTH SIDE NEAR ROAD (Grade II) (0.0 mi) · MARDLEYBURY MANOR (Grade II) (0.1 mi) · 7, LONDON ROAD (Grade II) (0.3 mi)
Nearest pharmacies: PHARMACY EXPRESS (1.1 mi) · WELL (2.2 mi) · BARNES PHARMACY (2.3 mi)
Nearest stations: Knebworth (1.3 mi) · Welwyn North (2.1 mi) · Watton-at-Stone (2.3 mi)
Nearest supermarkets: Co-op Food (1.1 mi) · Tesco (2.5 mi) · Co-operative Knightsfield (2.8 mi)
Straight-line distance from the postcode. Source: NaPTAN (DfT).
Who lives here
- Median age
- 48
- One-person households
- 27%
- Households with children
- 27%
- Households
- 4,857
Owned 72% · Social rent 13% · Private rent 15%
Census 2021 (ONS), for SG3 6.
Recorded crime trend
Recorded crimes per month in SG3 6 (May 24–Apr 26, average 30/month). Hover a point to read the count. Source: Police.uk street-level data.
Flood risk
No modelled flood risk is recorded for SG3 6SG 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 | DistrictSG3 | SectorSG3 6 | PostcodeSG3 6SG |
|---|---|---|---|
| Average sold price | £492,177 | £492,177 | £2,600,000 |
| Population | 11,638 | 11,638 | — |
| Deprivation decile (1 = most deprived) | 9/10 | 9/10 | — |
| Crimes recorded | 32 | 32 | — |
| Schools | 3 | 3 | — |
| Flood risk | Low | Low | Low |
| Gigabit broadband | 74% | 74% | 50% |
| Superfast broadband | 97% | 97% | 83% |
— = no separate figure is published at that level. Most open data is published down to the sector (SG3 6); 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
You've done the research — now the legal bit. Compare quotes from SRA/CLC-regulated conveyancers for SG3 6SG.
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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.