HM Land Registry records the plot of land for 5, Rosecroft Lane, Welwyn as measuring 587 m².

That makes it the 8th largest plot in the postcode, where 15 of the 16 other houses have recorded plot data.

5, Rosecroft Lane, Welwyn has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 29 Jul 2021.

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 5, Rosecroft Lane, Welwyn completed on 30th September 2025 at £520,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 the property has sold 5 times.

Values of comparable properties have dropped by 3.6% over the period since September 2025.

• Sold Sep 2025£520,000
• Sold Aug 2023£495,000
• Sold Jan 2013£367,500

Since 2007 23 properties similar to 5, Rosecroft Lane, Welwyn have sold within a radius of 1.4 kilometres, per the Land Registry and our network of Estate Agents.

The latest, on the 11th November 2025, was 85, Robbery Bottom Lane, Welwyn, AL6 0UL, a freehold house which sold for £450,000.

Read more about house prices in AL6.

• Sold Nov 2025£450,000 | 3 Bed House85, Robbery Bottom Lane, Welwyn, AL6 0UL85, Robbery Bottom Lane, Welwyn, AL6 0UL
• Sold Dec 2024£475,000 | 3 Bed House40, Robbery Bottom Lane, Welwyn, AL6 0UN40, Robbery Bottom Lane, Welwyn, AL6 0UN
• Sold Sep 2024£500,000 | 3 Bed House6, Oak Road, Knebworth, SG3 6LS6, Oak Road, Knebworth, SG3 6LS
• Sold Dec 2022£650,000 | 3 Bed House5, Oak Road, Knebworth, SG3 6LS5, Oak Road, Knebworth, SG3 6LS
• Sold Jun 2022£513,000 | 2 Bed House9, Copse Hill, Welwyn, AL6 0RY9, Copse Hill, Welwyn, AL6 0RY
• Sold Apr 2022£425,000 | 3 Bed House34, Wolves Mere, Knebworth, SG3 6JW34, Wolves Mere, Knebworth, SG3 6JW
• Sold Feb 2022£510,000 | 3 Bed House12, Holly Road, Knebworth, SG3 6LL12, Holly Road, Knebworth, SG3 6LL
• Sold Feb 2022£460,000 | 3 Bed House11, Hay Wains, Knebworth, SG3 6HW11, Hay Wains, Knebworth, SG3 6HW
• Sold Dec 2021£443,000 | 3 Bed House3, Hay Wains, Knebworth, SG3 6HW3, Hay Wains, Knebworth, SG3 6HW
• Sold Feb 2021£415,000 | 2 Bed House89, Robbery Bottom Lane, Welwyn, AL6 0UL89, Robbery Bottom Lane, Welwyn, AL6 0UL
• Sold Dec 2019£450,000 | 2 Bed House15, Woodland Way, Welwyn, AL6 0RZ15, Woodland Way, Welwyn, AL6 0RZ
• Sold May 2019£382,500 | 3 Bed House5, Robbery Bottom Lane, Welwyn, AL6 0UH5, Robbery Bottom Lane, Welwyn, AL6 0UH
• Sold Mar 2019£446,500 | 3 Bed House4, Chestnut Walk, Welwyn, AL6 0SB4, Chestnut Walk, Welwyn, AL6 0SB
• Sold Feb 2016£310,000 | 3 Bed House41, Twin Foxes, Knebworth, SG3 6QT41, Twin Foxes, Knebworth, SG3 6QT
• Sold Jun 2014£340,000 | 3 Bed House2, Link Road, Welwyn, AL6 0SA2, Link Road, Welwyn, AL6 0SA
• Sold Jun 2014£420,000 | 3 Bed House24, Heathbrow Road, Welwyn, AL6 0QG24, Heathbrow Road, Welwyn, AL6 0QG
• Sold Dec 2012£313,500 | 3 Bed House21, Robbery Bottom Lane, Welwyn, AL6 0UL21, Robbery Bottom Lane, Welwyn, AL6 0UL
• Sold Jun 2011£402,000 | 3 Bed House35, Mardley Hill, Welwyn, AL6 0TT35, Mardley Hill, Welwyn, AL6 0TT
• Sold Nov 2009£228,000 | 3 Bed House24, New Road, Knebworth, SG3 6JX24, New Road, Knebworth, SG3 6JX
• Sold Aug 2007£255,000 | 3 Bed House22, New Road, Knebworth, SG3 6JX22, New Road, Knebworth, SG3 6JX

Of the 16 addresses on Rosecroft Lane, Welwyn, AL6, 5, Rosecroft Lane, Welwyn comes out as the 16th largest and the 16th most expensive in our analysis of the public data.

It is also £297k less expensive than the average property across the AL6 district.

• St Michael's Woolmer Green CofE VA Primary School

  700 m away
• Oaklands Primary School

  900 m away
• All Saints Church of England Voluntary Aided Primary School, Datchworth

  2.1 km away

• Monk's Walk School

  3.3 km away
• Ridgeway Academy

  4.8 km away
• Barnwell School

  5.1 km away

• Welwyn North

  |

  2.4 km away
• Knebworth

  |

  2.5 km away
• Watton-at-Stone

  |

  4.7 km away

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