14, Mardleywood, Welwyn occupies a 644 m² plot as recorded by HM Land Registry.

Of the 7 other houses in this postcode, 3 have recorded plot sizes, and this one ranks as the largest.

14, Mardleywood, Welwyn has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 26 Aug 2020.

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

Land Registry records and our Estate Agent network show 153 sales of comparable properties within 1.3 kilometres of 14, Mardleywood, Welwyn since 2015.

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 Oct 2025£715,000 | 4 Bed House31, Hillside Way, Welwyn, AL6 0TY31, Hillside Way, Welwyn, AL6 0TY
• Sold Sep 2025£950,000 | 4 Bed House49, Mardley Hill, Welwyn, AL6 0TT49, Mardley Hill, Welwyn, AL6 0TT
• Sold Jun 2025£725,000 | 4 Bed House23, Birch Grove, Welwyn, AL6 0QP23, Birch Grove, Welwyn, AL6 0QP
• Sold Apr 2025£825,000 | 4 Bed House2A, Firway, Welwyn, AL6 0RD2A, Firway, Welwyn, AL6 0RD
• Sold Jan 2025£750,000 | 4 Bed House17, Mardley Avenue, Welwyn, AL6 0TU17, Mardley Avenue, Welwyn, AL6 0TU
• Sold May 2024£720,000 | 4 Bed House27, Marlborough Close, Welwyn, AL6 0UG27, Marlborough Close, Welwyn, AL6 0UG
• Sold Mar 2024£750,000 | 4 Bed House13B, Woodland Way, Welwyn, AL6 0RZ13B, Woodland Way, Welwyn, AL6 0RZ
• Sold Mar 2023£895,000 | 4 Bed House7, Rosecroft Lane, Welwyn, AL6 0UB7, Rosecroft Lane, Welwyn, AL6 0UB
• 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 Jun 2021£900,000 | 4 Bed House19, Mardley Dell, Welwyn, AL6 0UR19, Mardley Dell, Welwyn, AL6 0UR
• Sold Apr 2021£755,000 | 4 Bed House10, Woodland Way, Welwyn, AL6 0RZ10, Woodland Way, Welwyn, AL6 0RZ
• Sold Mar 2021£775,000 | 4 Bed House1, Mardley Dell, Welwyn, AL6 0UR1, Mardley Dell, Welwyn, AL6 0UR
• Sold Mar 2021£780,000 | 4 Bed House8A, Woodland Way, Welwyn, AL6 0RZ8A, Woodland Way, Welwyn, AL6 0RZ
• Sold Dec 2020£615,000 | 4 Bed House24, Marlborough Close, Welwyn, AL6 0UG24, Marlborough Close, Welwyn, AL6 0UG
• Sold Apr 2019£615,000 | 4 Bed House7, Heathlands, Welwyn, AL6 0UU7, Heathlands, Welwyn, AL6 0UU
• Sold Sep 2017£627,000 | 4 Bed House8, Heathlands, Welwyn, AL6 0UU8, Heathlands, Welwyn, AL6 0UU
• Sold Dec 2015£625,000 | 4 Bed House1A, Woodland Way, Welwyn, AL6 0RZ1A, Woodland Way, Welwyn, AL6 0RZ
• Sold Aug 2015£615,000 | 4 Bed House2, Heathlands, Welwyn, AL6 0UU2, Heathlands, Welwyn, AL6 0UU

Our analysis of the public data ranks 14, Mardleywood, Welwyn as the 17th largest and the 16th most expensive of the 28 addresses on Mardleywood, Welwyn, AL6.

Against the AL6 postcode district average, it is £16k more expensive than the typical property.

• St Michael's Woolmer Green CofE VA Primary School

  600 m away
• Oaklands Primary School

  900 m away
• Knebworth Primary and Nursery School

  2.0 km away

• Monk's Walk School

  3.4 km away
• Barnwell School

  4.9 km away
• Ridgeway Academy

  5.0 km away

• Knebworth

  |

  2.2 km away
• Welwyn North

  |

  2.6 km away
• Watton-at-Stone

  |

  4.8 km away

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