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Postcode report

CM21 0BY — East Hertfordshire

Sold prices, broadband, crime and local data for the CM21 0BY postcode, UK.

CM21 0BY is a postcode in East Hertfordshire, UK, in the CM21 district. HM Land Registry records 7 recent sales at this postcode (see below). Superfast broadband reaches 100% of premises here and gigabit 54.5%.

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Sold house prices at CM21 0BY

DatePriceAddressType
30 Apr 2026£324,00091 White Post FieldTerraced
28 Nov 2025£325,00093 White Post FieldTerraced
16 Oct 2025£292,00090 White Post FieldTerraced
4 Apr 2024£435,00078 White Post FieldSemi-detached
13 Jul 2023£550,00075 White Post FieldDetached
25 May 2023£355,00092 White Post FieldTerraced
10 Jan 2023£427,00083 White Post FieldSemi-detached

Broadband at CM21 0BY

Superfast (30Mb+)

100%

Gigabit-capable

54.5%

Median download

Median upload

Figures are Ofcom availability data for this exact postcode. Use the checker above for a live lookup including mobile signal on all four networks.

Energy performance certificates at CM21 0BY

16 EPCs are registered at this postcode (England & Wales register, certificates lodged since 2012; older ones may have expired or been replaced).

PropertyRatingRegistered
91 White Post FieldBand CAug 2025
74 White Post FieldBand CSep 2024
92 White Post FieldBand CMar 2023
79 White Post FieldBand CJan 2023
75 White Post FieldBand CNov 2022
82 White Post FieldBand COct 2022
83 White Post FieldBand CJun 2022
89, White Post FieldBand DJul 2020
90, White Post FieldBand DNov 2019
93, White Post FieldBand CAug 2019
78, White Post FieldBand CJan 2018
76, White Post FieldBand COct 2017
91, White Post FieldBand DJul 2015
81, White Post FieldBand DNov 2013
83, White Post FieldBand DMar 2013

Source: MHCLG Energy Performance of Buildings Data. Typical ratings for the wider district are on the CM21 area report.

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Contains HM Land Registry data © Crown copyright and database right 2026; crime data from police.uk; broadband data from Ofcom Connected Nations — Open Government Licence v3.0.

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