DL1 1AU
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Property report — DL1 1AU
Open-data due diligence for DL1 1AU and the area around it.
DL1 1AU in brief: 77 recorded sales (£103,000–£240,000) · no modelled flood risk · 6 schools nearby.
What scope is each figure? Sold sales, broadband and flood risk are for DL1 1AU itself. Where open data isn't published that finely (population, crime, schools), we show the DL1 1 sector — each figure below is tagged with its scope.
Avg sold price
£173,223
Population
16,882
Crimes recorded
99
Schools
4
Flood risk
None modelled
Gigabit broadband
72%
Sold-price trend (1995–2026)
Annual sold price in DL1 1, 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 (45 sales so far). Hover a point for both figures. Source: HM Land Registry Price Paid.
Sold prices on this postcode
| Date | Price | Address | Type |
|---|---|---|---|
| 2026-03-31 | £175,000 | 41 IRIS GROVE | Terraced |
| 2025-05-30 | £151,000 | 19 IRIS GROVE | Semi-detached |
| 2025-03-31 | £165,000 | 48 IRIS GROVE | Semi-detached |
| 2024-12-17 | £137,000 | 23 IRIS GROVE | Semi-detached |
| 2024-11-01 | £133,000 | 44 IRIS GROVE | Semi-detached |
| 2024-10-21 | £185,000 | 11 IRIS GROVE | Semi-detached |
| 2024-07-26 | £141,000 | 27 IRIS GROVE | Semi-detached |
| 2024-02-08 | £180,000 | 26 IRIS GROVE | Semi-detached |
| 2023-09-05 | £179,000 | 41 IRIS GROVE | Terraced |
| 2023-06-30 | £135,000 | 53 IRIS GROVE | Semi-detached |
| 2023-01-31 | £150,000 | 12 IRIS GROVE | Semi-detached |
| 2022-11-04 | £185,000 | 10 IRIS GROVE | Semi-detached |
| 2022-10-19 | £136,000 | 20 IRIS GROVE | Semi-detached |
| 2022-09-30 | £145,000 | 5 IRIS GROVE | Semi-detached |
| 2022-08-19 | £200,000 | 25 IRIS GROVE | Semi-detached |
| 2022-05-13 | £185,000 | 1 IRIS GROVE | Detached |
| 2022-03-01 | £125,000 | 20 IRIS GROVE | Semi-detached |
| 2021-11-02 | £240,000 | 57 IRIS GROVE | Detached |
| 2021-03-16 | £128,000 | 6 IRIS GROVE | Semi-detached |
| 2021-02-26 | £150,500 | 26 IRIS GROVE | Semi-detached |
| 2021-01-28 | £130,000 | 19 IRIS GROVE | Semi-detached |
| 2020-10-05 | £159,950 | 50 IRIS GROVE | Semi-detached |
| 2019-12-12 | £164,000 | 11 IRIS GROVE | Semi-detached |
| 2019-04-18 | £120,000 | 42 IRIS GROVE | Semi-detached |
| 2019-02-20 | £136,000 | 15 IRIS GROVE | Semi-detached |
| 2018-11-23 | £157,500 | 18 IRIS GROVE | Terraced |
| 2018-09-28 | £130,000 | 20 IRIS GROVE | Semi-detached |
| 2018-05-31 | £115,500 | 44 IRIS GROVE | Semi-detached |
| 2017-06-05 | £120,500 | 27 IRIS GROVE | Semi-detached |
| 2016-06-30 | £189,995 | 47 IRIS GROVE | Detached |
| 2016-05-06 | £149,995 | 38 IRIS GROVE | Semi-detached |
| 2016-03-24 | £187,995 | 57 IRIS GROVE | Detached |
| 2016-03-24 | £165,995 | 58 IRIS GROVE | Detached |
| 2016-03-24 | £179,995 | 56 IRIS GROVE | Detached |
| 2016-03-21 | £158,000 | 54 IRIS GROVE | Detached |
| 2016-03-18 | £187,995 | 55 IRIS GROVE | Detached |
| 2016-03-04 | £128,995 | 49 IRIS GROVE | Semi-detached |
| 2016-03-02 | £162,995 | 51 IRIS GROVE | Semi-detached |
| 2016-02-29 | £111,995 | 53 IRIS GROVE | Semi-detached |
| 2016-02-29 | £111,995 | 52 IRIS GROVE | Semi-detached |
| 2016-02-29 | £140,000 | 26 IRIS GROVE | Semi-detached |
| 2016-02-26 | £162,995 | 50 IRIS GROVE | Semi-detached |
| 2016-02-26 | £128,995 | 48 IRIS GROVE | Semi-detached |
| 2016-02-26 | £111,995 | 45 IRIS GROVE | Semi-detached |
| 2016-02-26 | £149,995 | 18 IRIS GROVE | Terraced |
| 2016-01-29 | £110,995 | 43 IRIS GROVE | Semi-detached |
| 2016-01-29 | £162,995 | 41 IRIS GROVE | Terraced |
| 2016-01-29 | £111,995 | 44 IRIS GROVE | Semi-detached |
| 2016-01-28 | £129,995 | 42 IRIS GROVE | Semi-detached |
| 2016-01-26 | £162,995 | 40 IRIS GROVE | Semi-detached |
| 2015-12-21 | £162,995 | 39 IRIS GROVE | Semi-detached |
| 2015-11-30 | £182,995 | 17 IRIS GROVE | Detached |
| 2015-11-27 | £149,995 | 16 IRIS GROVE | Semi-detached |
| 2015-11-27 | £149,995 | 15 IRIS GROVE | Semi-detached |
| 2015-11-20 | £162,995 | 21 IRIS GROVE | Semi-detached |
| 2015-11-20 | £162,995 | 22 IRIS GROVE | Semi-detached |
| 2015-11-13 | £122,995 | 20 IRIS GROVE | Semi-detached |
| 2015-11-12 | £122,995 | 19 IRIS GROVE | Semi-detached |
| 2015-10-30 | £108,995 | 24 IRIS GROVE | Semi-detached |
| 2015-10-30 | £108,995 | 23 IRIS GROVE | Semi-detached |
| 2015-10-29 | £160,995 | 29 IRIS GROVE | Semi-detached |
| 2015-10-23 | £160,995 | 25 IRIS GROVE | Semi-detached |
| 2015-09-28 | £120,995 | 14 IRIS GROVE | Semi-detached |
| 2015-09-25 | £120,995 | 12 IRIS GROVE | Semi-detached |
| 2015-09-21 | £160,995 | 11 IRIS GROVE | Semi-detached |
| 2015-09-18 | £160,995 | 10 IRIS GROVE | Semi-detached |
| 2015-09-17 | £160,995 | 30 IRIS GROVE | Semi-detached |
| 2015-08-28 | £120,995 | 28 IRIS GROVE | Semi-detached |
| 2015-08-28 | £120,995 | 27 IRIS GROVE | Semi-detached |
| 2015-04-30 | £103,000 | 34 IRIS GROVE | Semi-detached |
| 2015-04-30 | £103,000 | 33 IRIS GROVE | Semi-detached |
| 2015-04-30 | £134,300 | 4 IRIS GROVE | Detached |
| 2015-03-27 | £179,995 | 3 IRIS GROVE | Detached |
| 2015-03-27 | £114,995 | 5 IRIS GROVE | Semi-detached |
| 2015-03-26 | £114,995 | 6 IRIS GROVE | Semi-detached |
| 2015-03-06 | £179,995 | 2 IRIS GROVE | Detached |
| 2015-02-27 | £157,995 | 1 IRIS GROVE | Detached |
77 recorded sales on DL1 1AU. Source: HM Land Registry Price Paid (© Crown copyright). Shown for this postcode only.
Nearest schools
| School | Distance | Phase | Ofsted |
|---|---|---|---|
| St Aidan's Church of England Academy | 0.3 mi | Secondary | Good (2020) |
| Heathfield Primary School | 0.5 mi | Primary | Good (2019) |
| Gurney Pease Academy | 0.5 mi | Primary | Report card → |
| The Rydal Academy | 0.7 mi | Primary | Good (2022) |
| St Teresa's Catholic Primary School | 0.7 mi | Primary | Report card → |
| Corporation Road Community Primary School | 0.8 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: PARKGATE SURGERY (0.6 mi) · CLIFTON COURT MEDICAL PRACTICE (0.7 mi) · NEASHAM ROAD SURGERY (0.8 mi)
Nearest hospitals: HUNDENS LANE DAY HOSPITAL - DARLINGTON (0.2 mi) · HOSPITAL AT HOME DMH (1.1 mi) · DARLINGTON MEMORIAL HOSPITAL (1.1 mi)
Nearest listed buildings: The former Throstle Nest Bridge, now the Arnold Road Subway (Grade II) (0.3 mi) · Church of St James (Grade II) (0.3 mi) · FORMER GNER ENGINE SHED (Grade II) (0.3 mi)
Nearest pharmacies: JAMES & LINDSEY CLARK CHEMIST (0.6 mi) · BOOTS (0.7 mi) · CLIFTON COURT PHARMACY (0.7 mi)
Nearest stations: Darlington (0.7 mi) · North Road (0.9 mi) · Dinsdale (3.0 mi)
Nearest supermarkets: Aldi (0.6 mi) · Asda (0.6 mi) · Lidl (0.6 mi)
Straight-line distance from the postcode. Source: NaPTAN (DfT).
Who lives here
- Median age
- 38
- One-person households
- 40%
- Households with children
- 27%
- Households
- 7,716
Owned 49% · Social rent 22% · Private rent 29%
Census 2021 (ONS), for DL1 1.
Recorded crime trend
Recorded crimes per month in DL1 1 (May 24–Apr 26, average 74/month). Hover a point to read the count. Source: Police.uk street-level data.
Flood risk
No modelled flood risk is recorded for DL1 1AU 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 | DistrictDL1 | SectorDL1 1 | PostcodeDL1 1AU |
|---|---|---|---|
| Average sold price | £156,165 | £173,223 | £147,806 |
| Population | 62,891 | 16,882 | — |
| Deprivation decile (1 = most deprived) | 3/10 | 2/10 | — |
| Crimes recorded | 596 | 99 | — |
| Schools | 18 | 4 | — |
| Flood risk | High | High | Low |
| Gigabit broadband | 84% | 72% | 100% |
| Superfast broadband | 96% | 97% | 100% |
— = no separate figure is published at that level. Most open data is published down to the sector (DL1 1); 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 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.