HM Land Registry records the plot of land for 23, Hillside Way, Welwyn as measuring 830 m².

That makes it the 10th largest plot in the postcode, where 24 of the 27 other houses have recorded plot data.

23, Hillside Way, Welwyn has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 17 Jun 2015.

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

The most recent sale of 23, Hillside Way, Welwyn completed on 1st May 2015 at £437,500 and was recorded by HM Land Registry as a freehold house.

Since 1995 the property has sold twice.

Values of comparable properties have risen by 39.4% over the period since May 2015.

Since 2012 170 properties similar to 23, Hillside Way, Welwyn have sold within a radius of 1.4 kilometres, per the Land Registry and our network of Estate Agents.

The latest, on the 9th January 2026, was 50, Robbery Bottom Lane, Welwyn, AL6 0UN, a freehold house which sold for £658,000.

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 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 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 Jan 2021£625,000 | 4 Bed House99, Robbery Bottom Lane, Welwyn, AL6 0UL99, Robbery Bottom Lane, Welwyn, AL6 0UL
• Sold Dec 2020£615,000 | 4 Bed House24, Marlborough Close, Welwyn, AL6 0UG24, Marlborough Close, Welwyn, AL6 0UG
• Sold Jun 2020£562,000 | 4 Bed House27, Hillside Way, Welwyn, AL6 0TY27, Hillside Way, Welwyn, AL6 0TY
• Sold Nov 2017£599,950 | 4 Bed House1, Marlborough Close, Welwyn, AL6 0UG1, Marlborough Close, Welwyn, AL6 0UG
• 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 Jul 2016£620,000 | 4 Bed House79, Robbery Bottom Lane, Welwyn, AL6 0UL79, Robbery Bottom Lane, Welwyn, AL6 0UL
• Sold Oct 2014£479,950 | 4 Bed House21, Marlborough Close, Welwyn, AL6 0UG21, Marlborough Close, Welwyn, AL6 0UG
• Sold Jan 2014£454,000 | 4 Bed House23, Marlborough Close, Welwyn, AL6 0UG23, Marlborough Close, Welwyn, AL6 0UG
• 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

Of the 27 addresses on Hillside Way, Welwyn, AL6, 23, Hillside Way, Welwyn comes out as the 10th largest and the 11th most expensive in our analysis of the public data.

It is also £59k less expensive than the average property across the AL6 district.

• 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

The flood risk here is rated Very Low, based on Environment Agency data.