21, Hillside Way, Welwyn occupies a 888 m² plot as recorded by HM Land Registry.

Of the 27 other houses in this postcode, 24 have recorded plot sizes, and this one ranks as the 5th largest.

21, Hillside Way, Welwyn has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 20 Mar 2023.

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

Land Registry records and our Estate Agent network show 178 sales of comparable properties within 1.4 kilometres of 21, Hillside Way, Welwyn since 2012.

Most recently, 50, Robbery Bottom Lane, Welwyn, AL6 0UN, a freehold house, sold at £658,000 on the 9th January 2026.

Read more about house prices in AL6.

• Sold Jan 2026£658,000 | 4 Bed House50, Robbery Bottom Lane, Welwyn, AL6 0UN50, Robbery Bottom Lane, Welwyn, AL6 0UN
• Sold Dec 2025£775,000 | 4 Bed House1, Rosecroft Lane, Welwyn, AL6 0UB1, Rosecroft Lane, Welwyn, AL6 0UB
• Sold Nov 2025£747,218 | 4 Bed House4A, Heathbrow Road, Welwyn, AL6 0QG4A, Heathbrow Road, Welwyn, AL6 0QG
• Sold Oct 2025£715,000 | 4 Bed House31, Hillside Way, Welwyn, AL6 0TY31, Hillside Way, Welwyn, AL6 0TY
• Sold Mar 2025£735,000 | 4 Bed House7, Peace Grove, Welwyn, AL6 0RS7, Peace Grove, Welwyn, AL6 0RS
• Sold Jan 2025£750,000 | 4 Bed House17, Mardley Avenue, Welwyn, AL6 0TU17, Mardley Avenue, Welwyn, AL6 0TU
• Sold Dec 2024£778,000 | 4 Bed House13, Hillside Way, Welwyn, AL6 0TY13, Hillside Way, Welwyn, AL6 0TY
• Sold May 2024£720,000 | 4 Bed House27, Marlborough Close, Welwyn, AL6 0UG27, Marlborough Close, Welwyn, AL6 0UG
• Sold Jan 2022£850,000 | 4 Bed House20, Hillside Way, Welwyn, AL6 0TY20, Hillside Way, Welwyn, AL6 0TY
• Sold Nov 2021£750,000 | 4 Bed House20, Mardley Heights, Welwyn, AL6 0SX20, Mardley Heights, Welwyn, AL6 0SX
• Sold Aug 2021£775,000 | 4 Bed House1, Hillside Way, Welwyn, AL6 0TY1, Hillside Way, Welwyn, AL6 0TY
• Sold Dec 2020£615,000 | 4 Bed House24, Marlborough Close, Welwyn, AL6 0UG24, Marlborough Close, Welwyn, AL6 0UG
• Sold Dec 2020£800,000 | 4 Bed House9, Peace Grove, Welwyn, AL6 0RS9, Peace Grove, Welwyn, AL6 0RS
• Sold Jun 2020£562,000 | 4 Bed House27, Hillside Way, Welwyn, AL6 0TY27, Hillside Way, Welwyn, AL6 0TY
• Sold Sep 2019£810,000 | 4 Bed House22, Chestnut Walk, Welwyn, AL6 0SB22, Chestnut Walk, Welwyn, AL6 0SB
• Sold Jul 2017£600,000 | 4 Bed House19, Hillside Way, Welwyn, AL6 0TY19, Hillside Way, Welwyn, AL6 0TY
• Sold Jun 2017£785,000 | 4 Bed House8, Hillside Way, Welwyn, AL6 0TY8, Hillside Way, Welwyn, AL6 0TY
• Sold May 2015£437,500 | 4 Bed House23, Hillside Way, Welwyn, AL6 0TY23, Hillside Way, Welwyn, AL6 0TY
• Sold Apr 2013£395,000 | 4 Bed House81, Robbery Bottom Lane, Welwyn, AL6 0UL81, Robbery Bottom Lane, Welwyn, AL6 0UL
• Sold Nov 2012£490,000 | 4 Bed House11, Hillside Way, Welwyn, AL6 0TY11, Hillside Way, Welwyn, AL6 0TY

Our analysis of the public data ranks 21, Hillside Way, Welwyn as the 7th largest and the 6th most expensive of the 27 addresses on Hillside Way, Welwyn, AL6.

Against the AL6 postcode district average, it is £22k less expensive than the typical property.

• St Michael's Woolmer Green CofE VA Primary School

  600 m away
• Oaklands Primary School

  1.0 km away
• All Saints Church of England Voluntary Aided Primary School, Datchworth

  1.9 km away

• Monk's Walk School

  3.4 km away
• Ridgeway Academy

  4.8 km away
• Barnwell School

  5.0 km away

• Knebworth

  |

  2.4 km away
• Welwyn North

  |

  2.5 km away
• Watton-at-Stone

  |

  4.6 km away

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