Grendon Underwood & The Claydons · Buckinghamshire · England
Updated September 2026
Compare this postcodeUse the wider postcode district to compare the same evidence across more locations.
At this postcode
| Address | Date | Price |
|---|---|---|
| Cowley Old House, Preston Bissett, Buckingham, MK18 4DS | 11 July 2024 | £810,000 |
| Cowley Old House, Preston Bissett, Buckingham, MK18 4DS | 17 July 2015 | £650,000 |
| Cowley Old House, Preston Bissett, Buckingham, MK18 4DS | 27 April 2007 | £715,000 |
Within 3.1 miles of this postcode
Twyford C of E School
Voluntary controlled school
Steeple Claydon School and Pre-School
Community school
Roundwood Primary School
Community school
Within 1 mile of this postcode
Census 2021
3 female, 1 male
625 residents
404 residents
754 residents
1,244 residents
893 residents
This postcode contained 0.1% of the sector's usual residents on Census Day. The age profile describes the wider MK18 4 sector, not people in this individual postcode.
Census Day: 21 March 2021. Sources: ONS/Nomis P001-P004 and ONS CT21_0228. Age table version 2024-04-08.
Ofcom's predicted availability across all residential and commercial premises in this postcode in January 2026.
Source: Ofcom Connected Nations Spring 2026, version 2026-01-v2. Contains Ofcom data licensed under the Open Government Licence v3.0.
The Crown PH
BCT · Twyford
The Crown PH
BCT · Twyford
Manor House
BCT · Twyford
Manor House
BCT · Twyford
Rosehill Crescent
BCT · Twyford
English Indices of Deprivation 2025 for Buckinghamshire 004B, the published LSOA linked to this postcode. Decile 1 contains the most deprived 10% of English LSOAs and decile 10 the least deprived 10%.
Overall IMD decile
7 of 10
Overall England rank
22,186 of 33,755
These are relative area statistics, not measures of an individual household, affluence or absolute change. They cannot be compared with indices for other UK nations. Source: English Indices of Deprivation 2025, version 2025-v2.
Environment Agency long-term indicators for the area around addresses in this postcode. They are not an assessment of any individual property and do not show current or forecast flooding.
Source: Environment Agency flood-risk postcode search tool data, version 2026-06-18. Check the long-term risk for an individual area. © Environment Agency copyright and/or database right 2025. All rights reserved.
A factual reading of the data in this report's scope. It is not a location score or a recommendation.
Recorded sales
The five-year median is £810,000 from 1 recorded sale in MK18 4DS. This is a recorded-sale statistic, not a current valuation.
The latest UK House Price Index average for Buckinghamshire is £490,508 in June 2026, up 4.3% year on year.
Published establishments
4 open schools are in scope, including 4 primary and 0 secondary schools. Twyford C of E School is the nearest published school at 0.7 miles.
Counts describe active establishment records. They do not assess admissions, catchments or quality.
Published police records
9 published events cover 12 months, averaging 0.75 events per published month. The largest recorded category is Violence and sexual offences with 3 events.
The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.