| Postcode | HP18 0YJ | 
|---|---|
| Post Town | Aylesbury | 
| Nearest station | Bicester Village (10 km) | 
| Bus stops | 
                       Oak Tree Cottages (SE) 
Oak Tree Cottages (NW) 
Butler's Farm (SE) 
Darleys Close (SE) 
Darleys Close (NW) 
                     | 
                  
| Roads in this postcode | |
| Number of UPRNs | 8 View | 
| Known addresses | 
                       1 George Court, Grendon Underwood 
                            2 George Court, Grendon Underwood 
                            3 George Court, Grendon Underwood 
                            4 George Court, Grendon Underwood 
                            5 George Court, Grendon Underwood 
                       | 
                  
| Main property type | Detached | 
| Businesses | 
| Latitude | 51.876487 | |
|---|---|---|
| Longitude | -1.00132 | |
| Easting | 468846 | |
| Northing | 220240 | |
| Grid reference | SP688202 | |
| UTM reference | 30U 637581 5749188 | |
| what3words | funky.sneezed.spud | |
| FixPhrase | crisped mace stoneware unmanned | |
| Plus code | 9C3WVXGX+HF | |
| Altitude | 75 metres (247 feet) | |
| Sunrise (today) | 7:05 | |
| Sunset (today) | 16:32 | |
| Distance away | ||
| Distance to sea | 108 KMs (67.1 miles) | 
| Parish | Grendon Underwood | E04001489 | 
|---|---|---|
| Ward | Grendon Underwood & The Claydons | E05015953 | 
| Unitary Authority | Buckinghamshire | E06000060 | 
| County | Buckinghamshire | E10000002 | 
| Constituency (2024) | Mid Buckinghamshire | E14001360 | 
| MP | Greg Smith | Conservative | 
| Police force | Thames Valley | |
| Water company | Thames Water | |
| NUTS/ITL 3 | Buckinghamshire | |
| NUTS/ITL 2 | Berkshire, Buckinghamshire and Oxfordshire | |
| NUTS/ITL 1 | South East | |
| Country | England | E92000001 | 
| Date introduced | June 1999 | 
|---|---|
| Last updated | September 2025 | 
| User type | Small (addresses receive less than 25 items of mail per day) | 
| Quality | Within the building of the matched address closest to the postcode mean | 
| Population (2011) | 21 | |
|---|---|---|
| Households (2011) | 5 | |
| Index of Multiple Deprivation (2019) | 
                     Most deprivedLeast deprived 
                   | 
                |
| Average household income (2020) | 
                       Lowest (£22,200)
                        Highest (£108,100)
                       
                     | 
                  |
| Rural/urban (2021) | Smaller rural: Nearer to a major town or city | |
| Rural/urban (2011) | Rural village | |
| Built up area (2024) | Grendon Underwood | E63011317 | 
| Census output area (2021) | E00089205 | |
| Census output area (2011) | 6B2 | |
| Lower layer super output area (2021) | Buckinghamshire 010C | E01017673 | 
| Lower layer super output area (2011) | Aylesbury Vale 010C | E01017673 | 
| Middle layer super output area (2021) | Oakley, Brill & Edgcott | E02003661 | 
| Middle layer super output area (2011) | Oakley, Brill & Edgcott | E02003661 | 
| Travel to work area | Oxford | E30000250 | 
| Average property price in Hemel Hempstead | £448,607 | 
|---|---|
| Annual change | -0.3% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 5 George Court, Grendon Underwood | Detached (freehold) | Mar 2023 | £600,000 | 
| New build detached (freehold) | Sep 1999 | £205,950 | |
| 2 George Court, Grendon Underwood | Detached (freehold) | Mar 2021 | £670,000 | 
| Detached (freehold) | Dec 2015 | £595,000 | |
| Detached (freehold) | Jul 2002 | £356,000 | |
| New build detached (freehold) | Sep 1999 | £289,950 | |
| 3 George Court, Grendon Underwood | Detached (freehold) | Aug 2019 | £675,000 | 
| Detached (freehold) | Oct 2012 | £599,950 | |
| New build detached (freehold) | Oct 1999 | £329,950 | |
| 1 George Court, Grendon Underwood | Detached (freehold) | Oct 2015 | £480,000 | 
| Detached (freehold) | Jun 2001 | £299,000 | |
| New build detached (freehold) | Aug 1999 | £259,000 | |
| 4 George Court, Grendon Underwood | Semi-detached (freehold) | Dec 2006 | £365,000 | 
| New build semi-detached (freehold) | Sep 1999 | £199,950 |