N3 1SN
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Property report — N3 1SN
Open-data due diligence for N3 1SN and the area around it.
N3 1SN in brief: 80 recorded sales (£22,630–£1,495,000) · no modelled flood risk · 6 schools nearby.
What scope is each figure? Sold sales, broadband and flood risk are for N3 1SN itself. Where open data isn't published that finely (population, crime, schools), we show the N3 1 sector — each figure below is tagged with its scope.
Avg sold price
£718,035
Population
21,283
Crimes recorded
46
Schools
6
Flood risk
None modelled
Gigabit broadband
75%
Sold-price trend (1995–2026)
Annual sold price in N3 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 (18 sales so far). Hover a point for both figures. Source: HM Land Registry Price Paid.
Sold prices on this postcode
| Date | Price | Address | Type |
|---|---|---|---|
| 2025-12-19 | £1,350,000 | 19 ST MARYS AVENUE | Semi-detached |
| 2025-11-20 | £385,000 | FLAT E, 13 ST MARYS AVENUE | Flat |
| 2024-11-22 | £22,630 | 1 ST MARYS AVENUE | Other |
| 2023-06-30 | £1,185,000 | 38 ST MARYS AVENUE | Semi-detached |
| 2021-08-12 | £396,000 | 1D ST MARYS AVENUE | Flat |
| 2021-03-25 | £875,000 | 34 ST MARYS AVENUE | Semi-detached |
| 2021-03-12 | £825,000 | 1 ST MARYS AVENUE | Other |
| 2021-02-02 | £625,000 | 3B ST MARYS AVENUE | Flat |
| 2020-08-14 | £965,000 | 38 ST MARYS AVENUE | Semi-detached |
| 2019-08-30 | £800,000 | 38 ST MARYS AVENUE | Semi-detached |
| 2019-07-23 | £1,200,000 | 22A ST MARYS AVENUE | Semi-detached |
| 2018-01-31 | £1,375,000 | HEATHFIELD ST MARYS AVENUE | Detached |
| 2017-10-26 | £390,000 | FLAT D, 13 ST MARYS AVENUE | Flat |
| 2017-02-07 | £1,125,000 | 26 ST MARYS AVENUE | Detached |
| 2016-12-12 | £860,000 | 22A ST MARYS AVENUE | Semi-detached |
| 2016-05-17 | £1,180,000 | HEATHFIELD ST MARYS AVENUE | Detached |
| 2016-05-12 | £556,200 | 3B ST MARYS AVENUE | Flat |
| 2016-01-12 | £1,140,000 | 21 ST MARYS AVENUE | Semi-detached |
| 2015-12-18 | £1,495,000 | 8 ST MARYS AVENUE | Semi-detached |
| 2015-06-25 | £1,170,000 | 2 ST MARYS AVENUE | Detached |
| 2014-07-08 | £1,090,000 | 30 ST MARYS AVENUE | Semi-detached |
| 2013-08-02 | £950,000 | 29 ST MARYS AVENUE | Semi-detached |
| 2012-02-08 | £900,000 | 27 ST MARYS AVENUE | Semi-detached |
| 2011-12-22 | £165,000 | FLAT 5, 15 ST MARYS AVENUE | Flat |
| 2011-09-23 | £1,150,000 | 12A ST MARYS AVENUE | Semi-detached |
| 2010-11-12 | £880,000 | 17 ST MARYS AVENUE | Detached |
| 2010-10-21 | £1,000,000 | ALBANY ST MARYS AVENUE | Detached |
| 2010-06-18 | £340,000 | 1C ST MARYS AVENUE | Flat |
| 2007-11-23 | £327,000 | 3B ST MARYS AVENUE | Flat |
| 2007-11-09 | £685,000 | 2 ST MARYS AVENUE | Detached |
| 2007-09-25 | £1,200,000 | 8 ST MARYS AVENUE | Semi-detached |
| 2007-04-30 | £250,000 | FLAT 4, 15 ST MARYS AVENUE | Flat |
| 2007-04-25 | £325,000 | FLAT C, 13 ST MARYS AVENUE | Flat |
| 2007-02-26 | £155,000 | FLAT 3, 15 ST MARYS AVENUE | Flat |
| 2006-11-24 | £150,000 | FLAT 1, 15 ST MARYS AVENUE | Flat |
| 2006-11-24 | £270,000 | FLAT 2, 15 ST MARYS AVENUE | Flat |
| 2006-11-24 | £335,000 | 15 ST MARYS AVENUE | Flat |
| 2006-09-15 | £369,950 | FLAT 3, 3 ST MARYS AVENUE | Flat |
| 2006-06-28 | £230,000 | FLAT C, 13 ST MARYS AVENUE | Flat |
| 2006-06-15 | £730,000 | ALBANY ST MARYS AVENUE | Detached |
| 2006-01-31 | £495,000 | 2 ST MARYS AVENUE | Detached |
| 2005-06-27 | £372,500 | FLAT 2, 7 ST MARYS AVENUE | Flat |
| 2004-10-20 | £520,000 | 8 ST MARYS AVENUE | Semi-detached |
| 2004-07-29 | £196,500 | 1D ST MARYS AVENUE | Flat |
| 2004-06-30 | £687,500 | FORMENTOR ST MARYS AVENUE | Detached |
| 2004-06-29 | £263,000 | 1C ST MARYS AVENUE | Flat |
| 2004-01-15 | £322,000 | FLAT 3, 3 ST MARYS AVENUE | Flat |
| 2003-03-19 | £117,500 | 15 ST MARYS AVENUE | Flat |
| 2002-09-30 | £249,950 | 1C ST MARYS AVENUE | Flat |
| 2002-08-16 | £466,950 | 10 ST MARYS AVENUE | Semi-detached |
| 2002-05-10 | £199,950 | FLAT B, 1 ST MARYS AVENUE | Flat |
| 2002-03-15 | £598,000 | ALBANY ST MARYS AVENUE | Detached |
| 2001-12-14 | £229,950 | 3B ST MARYS AVENUE | Flat |
| 2001-10-04 | £499,950 | 23 ST MARYS AVENUE | Semi-detached |
| 2001-07-30 | £370,000 | 23 ST MARYS AVENUE | Semi-detached |
| 2001-06-20 | £151,000 | 14 ST MARYS AVENUE | Flat |
| 2001-06-07 | £209,950 | FLAT 3, 3 ST MARYS AVENUE | Flat |
| 2001-05-17 | £140,000 | FLAT B, 1 ST MARYS AVENUE | Flat |
| 2001-02-08 | £410,000 | 20 ST MARYS AVENUE | Semi-detached |
| 2000-10-12 | £80,000 | 15 ST MARYS AVENUE | Flat |
| 2000-09-15 | £130,000 | FLAT D, 13 ST MARYS AVENUE | Flat |
| 2000-02-15 | £260,000 | 22B ST MARYS AVENUE | Semi-detached |
| 1999-11-24 | £435,000 | 4 ST MARYS AVENUE | Semi-detached |
| 1999-11-05 | £99,950 | 1D ST MARYS AVENUE | Flat |
| 1999-08-05 | £125,000 | FLAT E, 13 ST MARYS AVENUE | Flat |
| 1999-07-16 | £150,000 | FLAT 1, 7 ST MARYS AVENUE | Flat |
| 1999-07-15 | £390,000 | 28 ST MARYS AVENUE | Semi-detached |
| 1998-11-20 | £49,500 | 15 ST MARYS AVENUE | Flat |
| 1998-08-20 | £129,500 | FLAT 3, 3 ST MARYS AVENUE | Flat |
| 1998-04-01 | £134,000 | 1C ST MARYS AVENUE | Flat |
| 1997-09-18 | £95,000 | FLAT D, 13 ST MARYS AVENUE | Flat |
| 1997-03-03 | £145,000 | FLAT 2, 7 ST MARYS AVENUE | Flat |
| 1997-03-03 | £100,500 | FLAT B, 1 ST MARYS AVENUE | Flat |
| 1997-02-07 | £90,000 | 3B ST MARYS AVENUE | Flat |
| 1996-08-29 | £37,500 | FLAT 5, 15 ST MARYS AVENUE | Flat |
| 1995-11-13 | £189,950 | 1 ST MARYS AVENUE | Detached |
| 1995-09-18 | £200,000 | ALBANY ST MARYS AVENUE | Detached |
| 1995-09-04 | £100,000 | 13A ST MARYS AVENUE | Flat |
| 1995-07-09 | £89,900 | FLAT C, 13 ST MARYS AVENUE | Flat |
| 1995-02-22 | £75,000 | FLAT 1, 7 ST MARYS AVENUE | Flat |
80 recorded sales on N3 1SN. Source: HM Land Registry Price Paid (© Crown copyright). Shown for this postcode only.
Nearest schools
| School | Distance | Phase | Ofsted |
|---|---|---|---|
| Pardes House Primary School | 0.3 mi | Primary | Report card → |
| St Mary's CofE Primary School | 0.4 mi | Primary | Good (2021) |
| Chalgrove Primary School | 0.4 mi | Primary | Outstanding (2022) |
| Hasmonean High School for Boys | 0.5 mi | Secondary | Good (2023) |
| Akiva School | 0.7 mi | Primary | Report card → |
| St Theresa's Catholic Primary School | 0.7 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: SUPREME MEDICAL CENTRE (0.4 mi) · THE MOUNTFIELD SURGERY (0.5 mi) · LICHFIELD GROVE SURGERY (0.5 mi)
Nearest hospitals: UCLH OUTREACH: BMI THE GARDEN HOSPITAL (0.9 mi) · FINCHLEY MEMORIAL HOSPITAL CDC (1.3 mi) · CDC FP FINCH MEM HOSPITAL (1.3 mi)
Nearest listed buildings: Finchley Garden Village War Memorial (Grade II) (0.2 mi) · 30A, HENDON AVENUE (Grade II) (0.2 mi) · PARK HOUSE (Grade II) (0.2 mi)
Nearest pharmacies: REENA PHARMACY (0.3 mi) · GATEWAY CHEMIST (0.4 mi) · DAY LEWIS PHARMACY (0.5 mi)
Nearest stations: Finchley Central (0.5 mi) · Mill Hill East (0.8 mi) · West Finchley (1.0 mi)
Nearest supermarkets: Little Waitrose (0.4 mi) · Thornfield Supermarket (0.5 mi) · Kosher Cuisine (0.5 mi)
Straight-line distance from the postcode. Source: NaPTAN (DfT).
Who lives here
- Median age
- 40
- One-person households
- 32%
- Households with children
- 30%
- Households
- 8,739
Owned 53% · Social rent 7% · Private rent 40%
Census 2021 (ONS), for N3 1.
Recorded crime trend
Recorded crimes per month in N3 1 (Jul 24–Apr 26, average 41/month). Hover a point to read the count. Source: Police.uk street-level data.
Flood risk
No modelled flood risk is recorded for N3 1SN 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 | DistrictN3 | SectorN3 1 | PostcodeN3 1SN |
|---|---|---|---|
| Average sold price | £756,729 | £718,035 | £487,841 |
| Population | 38,572 | 21,283 | — |
| Deprivation decile (1 = most deprived) | 6/10 | 7/10 | — |
| Crimes recorded | 195 | 46 | — |
| Schools | 11 | 6 | — |
| Flood risk | High | High | Low |
| Gigabit broadband | 76% | 75% | 100% |
| Superfast broadband | 98% | 96% | 100% |
— = no separate figure is published at that level. Most open data is published down to the sector (N3 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 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.