N11 3GH maps, stats, and open data
N11 3GH lies on Martock Gardens in London. N11 3GH is located in the Friern Barnet electoral ward, within the London borough of Barnet and the English Parliamentary constituency of Chipping Barnet. The Sub Integrated Care Board (ICB) Location is NHS North Central London ICB - 93C and the police force is Metropolitan Police. This postcode has been in use since December 1999.
N11 3GH geodata
| Easting | 528033 |
| Northing | 192079 |
| Latitude | 51.612990 |
| Longitude | -0.152284 |
Where is N11 3GH?
| Street | Martock Gardens |
| Town/City | London |
| Country | England |
| Postcode District | N11 |
N11 3GH Elevation
Elevation or altitude of N11 3GH as distance above sea level:
| Metres | Feet | |
|---|---|---|
| Elevation | 60m | 197ft |
Elevation is measured from the approximate centre of the postcode, to the nearest point on an OS contour line from OS Terrain 50, which has contour spacing of ten vertical metres.
➜ How high above sea level am I? Find the elevation of your current position using your device's GPS.
Politics
| Ward | Friern Barnet |
|---|---|
| Constituency | Chipping Barnet |
House Prices
Sales of detached houses in N11 3GH
2025 28 MAR £620,000 |
6, MARTOCK GARDENS, LONDON, N11 3GH 2016 31 MAR £640,000 |
2012 4 OCT £420,000 |
2005 27 SEP £340,000 |
2005 27 MAY £365,000 |
13, MARTOCK GARDENS, LONDON, N11 3GH 2002 7 JAN £249,000 |
4, MARTOCK GARDENS, LONDON, N11 3GH 2001 30 MAR £399,995 |
2001 19 FEB £325,000 |
15, MARTOCK GARDENS, LONDON, N11 3GH 2000 30 JUN £250,000 |
1999 20 DEC £196,995 |
Licence: Contains HM Land Registry data © Crown copyright and database right 2025. This data is licensed under the Open Government Licence v3.0.
Transport
Nearest bus stops to N11 3GH
| Halliwick Park (Friern Barnet Road) | Friern Barnet | 59m |
| St John's Church Friern Barnet (Friern Barnet Road) | Friern Barnet | 136m |
| Stanford Road | Colney Hatch | 137m |
| Bellevue Road (Friern Barnet Road) | Colney Hatch | 256m |
| St John's Church Friern Barnet (Friern Barnet Road) | Friern Barnet | 257m |
Nearest underground/metro/tram to N11 3GH
| Arnos Grove Underground Station | Arnos Grove | 1,386m |
Nearest railway stations to N11 3GH
| New Southgate Station | 0.7km |
| Bowes Park Station | 2.3km |
| Alexandra Palace Station | 2.8km |
Broadband
Broadband access in N11 3GH (2020 data)
| Percentage of properties with Next Generation Access | 100.0% |
| Percentage of properties with Superfast Broadband | 100.0% |
| Percentage of properties with Ultrafast Broadband | 0.0% |
| Percentage of properties with Full Fibre Broadband | 0.0% |
Superfast Broadband is between 30Mbps and 300Mbps
Ultrafast Broadband is > 300Mbps
Broadband speed in N11 3GH (2019 data)
Download
| Median download speed | 39.5Mbps |
| Average download speed | 42.3Mbps |
| Maximum download speed | 80.00Mbps |
Upload
| Median upload speed | 9.9Mbps |
| Average upload speed | 10.8Mbps |
| Maximum upload speed | 20.00Mbps |
Broadband limitations in N11 3GH (2020 data)
| Percentage of properties unable to receive 2Mbps | 0.0% |
| Percentage of properties unable to receive 5Mbps | 0.0% |
| Percentage of properties unable to receive 10Mbps | 0.0% |
| Percentage of properties unable to receive 30Mbps | 0.0% |
N11 3GH gas and electricity consumption
Estimated total energy consumption in N11 3GH by fuel type, 2015.
Gas
| Consumption (kWh) | 231,373 |
|---|---|
| Meter count | 16 |
| Mean (kWh/meter) | 14,461 |
| Median (kWh/meter) | 12,843 |
Electricity
| Consumption (kWh) | 51,829 |
|---|---|
| Meter count | 16 |
| Mean (kWh/meter) | 3,239 |
| Median (kWh/meter) | 3,237 |
- Consumption: The estimated total energy consumption, in kWh, across all meters in N11 3GH, for 2015.
- Meter count: The total number of meters in N11 3GH.
- Mean: The mean average consumption per meter, in kWh.
- Median: The median average consumption per meter, in kWh.
Source: Postcode level electricity estimates: 2015 (experimental)
Licence: Open Government Licence
Deprivation
39.8% of English postcodes are less deprived than N11 3GH:Food Standards Agency
Three nearest food hygiene ratings to N11 3GH (metres)
➜ Get more ratings from the Food Standards Agency
Nearest post box to N11 3GH
| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Friern Barnet Road | 17:30 | 12:00 | 76m |
| Holly Park Road/Glenthorne Road | 17:30 | 12:00 | 292m |
| 44 Goldsmith Road | 17:30 | 12:00 | 300m |
N11 3GH ITL and N11 3GH LAU
The below table lists the International Territorial Level (ITL) codes (formerly Nomenclature of Territorial Units for Statistics (NUTS) codes) and Local Administrative Units (LAU) codes for N11 3GH:
| ITL 1 Code | Name |
|---|---|
| TLI | London |
| ITL 2 Code | Name |
| TLI7 | Outer London - West and North West |
| ITL 3 Code | Name |
| TLI71 | Barnet |
| LAU 1 Code | Name |
| E09000003 | Barnet |
N11 3GH census areas
The below table lists the Census Output Area (OA), Lower Layer Super Output Area (LSOA), and Middle Layer Super Output Area (MSOA) for N11 3GH:
| Code | Name | |
|---|---|---|
| OA | E00000771 | |
| LSOA | E01000161 | Barnet 015D |
| MSOA | E02000038 | Barnet 015 |
Nearest postcodes to N11 3GH
| N11 3GT | Sparkford Gardens | 63m |
| N11 3GQ | Radstock Close | 64m |
| N11 3DT | The Broadway | 88m |
| N11 3GR | Cheddar Close | 94m |
| N11 3GJ | Martock Gardens | 118m |
| N11 3JD | Ramsden Road | 135m |
| N11 3EA | Friern Barnet Road | 136m |
| N11 3GF | Pickering Gardens | 143m |
| N11 3GS | Sparkford Gardens | 146m |
| N11 3DX | Friern Barnet Road | 148m |
- Contains OS data © Crown copyright and database right (2025)
- Contains Royal Mail data © Royal Mail copyright and Database right (2025)
- Contains National Statistics data © Crown copyright and database right (2025)
- Data produced by Land Registry © Crown copyright (2025)
- Contains Environment Agency data licensed under the Open Government Licence v3.0
- Everything else © GetTheData Publishing Limited (2025)
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