21, The Mallards, Hemel Hempstead occupies a 162 m² plot as recorded by HM Land Registry.

All 23 other houses in this postcode have recorded plot sizes, and this one ranks as the 15th largest.

21, The Mallards, Hemel Hempstead has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 28 Sep 2016.

The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

21, The Mallards, Hemel Hempstead last changed hands on 2nd November 2016, selling for £450,000. The transaction was logged as a freehold house by HM Land Registry.

In total it has sold twice since 1995.

The market for similar properties has risen by 31.5% since November 2016.

• Sold Nov 2016£450,000
• Sold Nov 2007£305,000

Land Registry records and our Estate Agent network show 106 sales of comparable properties within 500 metres of 21, The Mallards, Hemel Hempstead since 2008.

Most recently, 11, Chambersbury Lane, Hemel Hempstead, HP3 8AY, a freehold house, sold at £620,000 on the 6th March 2026.

Read more about house prices in HP3.

• Sold Mar 2026£620,000 | 4 Bed House11, Chambersbury Lane, Hemel Hempstead, HP3 8AY11, Chambersbury Lane, Hemel Hempstead, HP3 8AY
• Sold Dec 2025£620,000 | 3 Bed House16, Swan Mead, Hemel Hempstead, HP3 9DG16, Swan Mead, Hemel Hempstead, HP3 9DG
• Sold Jul 2024£485,000 | 4 Bed House9, Bittern Close, Hemel Hempstead, HP3 9FQ9, Bittern Close, Hemel Hempstead, HP3 9FQ
• Sold Mar 2024£605,000 | 4 Bed House12, The Mallards, Hemel Hempstead, HP3 9DP12, The Mallards, Hemel Hempstead, HP3 9DP
• Sold Jun 2023£605,000 | 4 Bed House6, Swan Mead, Hemel Hempstead, HP3 9DG6, Swan Mead, Hemel Hempstead, HP3 9DG
• Sold Apr 2022£490,008 | 4 Bed House7, Bittern Close, Hemel Hempstead, HP3 9FQ7, Bittern Close, Hemel Hempstead, HP3 9FQ
• Sold Mar 2022£580,000 | 3 Bed House4, Swan Mead, Hemel Hempstead, HP3 9DG4, Swan Mead, Hemel Hempstead, HP3 9DG
• Sold May 2021£450,000 | 4 Bed House4, Bittern Close, Hemel Hempstead, HP3 9FQ4, Bittern Close, Hemel Hempstead, HP3 9FQ
• Sold Dec 2020£480,000 | 3 Bed House3, Bittern Close, Hemel Hempstead, HP3 9FQ3, Bittern Close, Hemel Hempstead, HP3 9FQ
• Sold Mar 2020£550,000 | 4 Bed House15, Teal Way, Hemel Hempstead, HP3 9FE15, Teal Way, Hemel Hempstead, HP3 9FE
• Sold May 2019£437,000 | 4 Bed House31, Swan Mead, Hemel Hempstead, HP3 9DQ31, Swan Mead, Hemel Hempstead, HP3 9DQ
• Sold May 2019£548,000 | 4 Bed House8, Swan Mead, Hemel Hempstead, HP3 9DG8, Swan Mead, Hemel Hempstead, HP3 9DG
• Sold Apr 2019£420,000 | 4 Bed House23, Swan Mead, Hemel Hempstead, HP3 9DQ23, Swan Mead, Hemel Hempstead, HP3 9DQ
• Sold Aug 2017£420,000 | 4 Bed House2, Bittern Close, Hemel Hempstead, HP3 9FQ2, Bittern Close, Hemel Hempstead, HP3 9FQ
• Sold Sep 2016£460,000 | 4 Bed House19, Swan Mead, Hemel Hempstead, HP3 9DQ19, Swan Mead, Hemel Hempstead, HP3 9DQ
• Sold Oct 2015£415,000 | 3 Bed House20, The Mallards, Hemel Hempstead, HP3 9DP20, The Mallards, Hemel Hempstead, HP3 9DP
• Sold Dec 2014£370,000 | 4 Bed House195, Belswains Lane, Hemel Hempstead, HP3 9XA195, Belswains Lane, Hemel Hempstead, HP3 9XA
• Sold Sep 2014£371,000 | 4 Bed House197, Belswains Lane, Hemel Hempstead, HP3 9XA197, Belswains Lane, Hemel Hempstead, HP3 9XA
• Sold May 2014£375,000 | 4 Bed House193, Belswains Lane, Hemel Hempstead, HP3 9XA193, Belswains Lane, Hemel Hempstead, HP3 9XA
• Sold Jun 2008£325,000 | 3 Bed House14, The Mallards, Hemel Hempstead, HP3 9DP14, The Mallards, Hemel Hempstead, HP3 9DP

Our analysis of the public data ranks 21, The Mallards, Hemel Hempstead as the 12th largest and the 13th most expensive of the 29 addresses on The Mallards, Hemel Hempstead, HP3.

Against the HP3 postcode district average, it is £78k more expensive than the typical property.

• Nash Mills Church of England Primary School

  100 m away
• Belswains Primary School

  800 m away
• Chambersbury Primary School

  1.1 km away

• Longdean School

  1.4 km away
• Kings Langley School

  1.8 km away
• The Adeyfield Academy

  2.5 km away

• Apsley

  |

  600 m away
• Hemel Hempstead

  |

  2.8 km away
• Kings Langley

  |

  3.0 km away

Environment Agency data suggests this area has a Very Low risk of flooding.