21, Allandale, St. Albans occupies a 372 m² plot as recorded by HM Land Registry.

Of the 25 other houses in this postcode, 24 have recorded plot sizes, and this one ranks as the 17th largest.

21, Allandale, St. Albans has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 24 Jun 2023.

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

21, Allandale, St. Albans last changed hands on 22nd February 2024, selling for £810,000. The transaction was logged as a freehold house by HM Land Registry.

That is its only recorded sale since 1995.

The market for similar properties has dropped by 15.3% since February 2024.

• Sold Feb 2024£810,000

Land Registry records and our Estate Agent network show 179 sales of comparable properties within 830 metres of 21, Allandale, St. Albans since 2015.

Most recently, 97, Watford Road, St. Albans, AL2 3JY, a freehold house, sold at £725,000 on the 19th September 2025.

Read more about house prices in AL3.

• Sold Sep 2025£725,000 | 4 Bed House97, Watford Road, St. Albans, AL2 3JY97, Watford Road, St. Albans, AL2 3JY
• Sold Jun 2025£912,000 | 4 Bed House10, Rowlatt Drive, St. Albans, AL3 4NB10, Rowlatt Drive, St. Albans, AL3 4NB
• Sold Feb 2025£960,000 | 4 Bed House47, Westfields, St. Albans, AL3 4LS47, Westfields, St. Albans, AL3 4LS
• Sold Feb 2025£602,500 | 3 Bed House101, Watford Road, St. Albans, AL2 3JY101, Watford Road, St. Albans, AL2 3JY
• Sold Nov 2024£760,000 | 4 Bed House5, Butt Field View, St. Albans, AL1 2QL5, Butt Field View, St. Albans, AL1 2QL
• Sold Feb 2022£886,000 | 4 Bed House11, Allandale, St. Albans, AL3 4NG11, Allandale, St. Albans, AL3 4NG
• Sold Jan 2022£640,000 | 4 Bed House62, Robert Avenue, St. Albans, AL1 2QR62, Robert Avenue, St. Albans, AL1 2QR
• Sold Sep 2021£710,000 | 4 Bed House63, Westfields, St. Albans, AL3 4LS63, Westfields, St. Albans, AL3 4LS
• Sold Sep 2021£735,000 | 4 Bed House6, Robert Avenue, St. Albans, AL1 2QP6, Robert Avenue, St. Albans, AL1 2QP
• Sold Jun 2021£760,000 | 4 Bed House21, Netherway, St. Albans, AL3 4NE21, Netherway, St. Albans, AL3 4NE
• Sold Sep 2020£750,000 | 3 Bed House8A, Midway, St. Albans, AL3 4BG8A, Midway, St. Albans, AL3 4BG
• Sold Dec 2019£600,000 | 3 Bed House17, Netherway, St. Albans, AL3 4NE17, Netherway, St. Albans, AL3 4NE
• Sold Nov 2018£745,000 | 3 Bed House14, Westfields, St. Albans, AL3 4LP14, Westfields, St. Albans, AL3 4LP
• Sold Apr 2018£705,000 | 3 Bed House10, Allandale, St. Albans, AL3 4NG10, Allandale, St. Albans, AL3 4NG
• Sold Sep 2016£715,000 | 4 Bed House5, Allandale, St. Albans, AL3 4NG5, Allandale, St. Albans, AL3 4NG
• Sold Apr 2016£677,500 | 4 Bed House23, Netherway, St. Albans, AL3 4NE23, Netherway, St. Albans, AL3 4NE
• Sold Mar 2016£760,000 | 3 Bed House10, Netherway, St. Albans, AL3 4NE10, Netherway, St. Albans, AL3 4NE
• Sold Jan 2016£659,000 | 4 Bed House14, Allandale, St. Albans, AL3 4NG14, Allandale, St. Albans, AL3 4NG
• Sold Oct 2015£800,000 | 4 Bed House26, Westfields, St. Albans, AL3 4LP26, Westfields, St. Albans, AL3 4LP
• Sold Sep 2015£470,000 | 4 Bed House102, Robert Avenue, St. Albans, AL1 2QR102, Robert Avenue, St. Albans, AL1 2QR

Agents in our network have reported 1 letting of a comparable property within 830 metres of 21, Allandale, St. Albans across the last 2 years.

The newest of these is 15, Stanmount Road, St. Albans, AL2 3AG, a freehold house let by Collinson Hall in October 2024.

• 
  Let Oct 2024£ Undisclosed | 3 Bed House15, Stanmount Road, St. Albans, AL2 3AG15, Stanmount Road, St. Albans, AL2 3AG

•Nearby is defined as the radius comprising the nearest 2,000 addresses.

Our analysis of the public data ranks 21, Allandale, St. Albans as the 19th largest and the 15th most expensive of the 25 addresses on Allandale, St. Albans, AL3.

Against the AL3 postcode district average, it is £154k more expensive than the typical property.

• Killigrew Primary and Nursery School

  600 m away
• St Adrian Roman Catholic Primary School

  700 m away
• Mandeville Primary School

  1.0 km away

• The Marlborough Science Academy

  400 m away
• Loreto College

  2.4 km away
• Verulam School

  3.3 km away

• St Albans Abbey

  |

  1.2 km away
• Park Street

  |

  1.6 km away
• How Wood (Hertfordshire)

  |

  2.3 km away

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