HM Land Registry records the plot of land for 18, Codicote Road, Welwyn as measuring 71 m².

That makes it the 11th largest plot in the postcode, where all 11 other houses have recorded plot data.

18, Codicote Road, Welwyn has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 20 Dec 2017.

The property is connected to mains gas and has partial double glazing. It is heated using a boiler and radiators (mains gas).

The most recent sale of 18, Codicote Road, Welwyn completed on 15th April 1999 at £120,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 the property has sold twice.

• Sold Apr 1999£120,000
• Sold Apr 1996£85,000

Since 2009 84 properties similar to 18, Codicote Road, Welwyn have sold within a radius of 1.3 kilometres, per the Land Registry and our network of Estate Agents.

The latest, on the 19th December 2025, was 22, Broomfield Road, Welwyn, AL6 9DW, a freehold house which sold for £426,000.

Read more about house prices in AL6.

• Sold Dec 2025£426,000 | 3 Bed House22, Broomfield Road, Welwyn, AL6 9DW22, Broomfield Road, Welwyn, AL6 9DW
• Sold Oct 2025£602,000 | 3 Bed House24, Welwyn Hall Gardens, Welwyn, AL6 9LF24, Welwyn Hall Gardens, Welwyn, AL6 9LF
• Sold Oct 2024£431,795 | 3 Bed House3, Hobbs Hill, Welwyn, AL6 9DY3, Hobbs Hill, Welwyn, AL6 9DY
• Sold Feb 2024£580,000 | 3 Bed House26, Glebe Road, Welwyn, AL6 9PB26, Glebe Road, Welwyn, AL6 9PB
• Sold Oct 2023£550,000 | 3 Bed House8, School Lane, Welwyn, AL6 9PH8, School Lane, Welwyn, AL6 9PH
• Sold Aug 2023£660,000 | 3 Bed House37, Welwyn Hall Gardens, Welwyn, AL6 9LF37, Welwyn Hall Gardens, Welwyn, AL6 9LF
• Sold Jul 2022£450,000 | 3 Bed House8, Church Street, Welwyn, AL6 9LX8, Church Street, Welwyn, AL6 9LX
• Sold Jun 2021£465,000 | 3 Bed House17, High Street, Welwyn, AL6 9EE17, High Street, Welwyn, AL6 9EE
• Sold Apr 2021£389,000 | 3 Bed House10, London Road, Welwyn, AL6 9EL10, London Road, Welwyn, AL6 9EL
• Sold Jan 2020£495,000 | 3 Bed House13, Elmoor Avenue, Welwyn, AL6 9PG13, Elmoor Avenue, Welwyn, AL6 9PG
• Sold Sep 2019£277,500 | 3 Bed House36, Mimram Road, Welwyn, AL6 9HA36, Mimram Road, Welwyn, AL6 9HA
• Sold Apr 2019£400,000 | 3 Bed House24, Codicote Road, Welwyn, AL6 9NQ24, Codicote Road, Welwyn, AL6 9NQ
• Sold Jan 2019£420,000 | 3 Bed House32, Mill Lane, Welwyn, AL6 9ET32, Mill Lane, Welwyn, AL6 9ET
• Sold Apr 2018£374,000 | 3 Bed House34, Mimram Road, Welwyn, AL6 9HA34, Mimram Road, Welwyn, AL6 9HA
• Sold Feb 2018£240,000 | 3 Bed House10, Church Street, Welwyn, AL6 9LX10, Church Street, Welwyn, AL6 9LX
• Sold Nov 2012£195,000 | 3 Bed House12, Church Street, Welwyn, AL6 9LX12, Church Street, Welwyn, AL6 9LX
• Sold Oct 2012£337,500 | 3 Bed House3, Mimram Road, Welwyn, AL6 9HA3, Mimram Road, Welwyn, AL6 9HA
• Sold Jan 2012£309,000 | 3 Bed House8, Mill Lane, Welwyn, AL6 9ET8, Mill Lane, Welwyn, AL6 9ET
• Sold Nov 2010£272,500 | 3 Bed House12, Mill Lane, Welwyn, AL6 9ET12, Mill Lane, Welwyn, AL6 9ET
• Sold Dec 2009£110,000 | 3 Bed House4, Mimram Road, Welwyn, AL6 9HA4, Mimram Road, Welwyn, AL6 9HA

Over the past 2 years our Estate Agent network has recorded 1 let within 1.3 kilometres of 18, Codicote Road, Welwyn.

The latest, in November 2023, was 5, Wilga Road, Welwyn, AL6 9PT, a freehold house let by Collinson Hall.

• 
  Let agreed Nov 2023£ Undisclosed | 3 Bed House5, Wilga Road, Welwyn, AL6 9PT5, Wilga Road, Welwyn, AL6 9PT

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

Of the 82 addresses on Codicote Road, Welwyn, AL6, 18, Codicote Road, Welwyn comes out as the 58th largest and the 64th most expensive in our analysis of the public data.

It is also £268k less expensive than the average property across the AL6 district.

• Welwyn St Mary's Church of England Voluntary Aided Primary School

  900 m away
• Oaklands Primary School

  1.6 km away
• Codicote Church of England Primary School

  2.1 km away

• Monk's Walk School

  1.7 km away
• Ridgeway Academy

  4.4 km away
• Stanborough School

  4.9 km away

• Welwyn North

  |

  2.1 km away
• Welwyn Garden City

  |

  3.8 km away
• Knebworth

  |

  4.1 km away

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