Our Data Sources
21, Chestnut Walk, Welwyn has no recent1 records in the Land Registry and a single entry in the EPC database dated April 2013.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 2 out of 5 and is considered of medium accuracy.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 21, Chestnut Walk, Welwyn, we estimate a market value of £754,938 and a rental value of £3,099 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £668,659 and £2,745 per month respectively.
Plot Size
HM Land Registry records the plot of land for 21, Chestnut Walk, Welwyn as measuring 555 m2.
That makes it the 11th largest plot in the postcode, where all 14 other houses have recorded plot data.
Energy Efficiency
21, Chestnut Walk, Welwyn has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 15 Apr 2013.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
The most recent sale of 21, Chestnut Walk, Welwyn completed on 21st September 2000 at £214,250 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold twice.
- Sold Sep 2000£214,250
- Sold Feb 1998£162,500
Similar Properties Sold Nearby
Since 2014 170 properties similar to 21, Chestnut Walk, Welwyn have sold within a radius of 1.4 kilometres, per the Land Registry and our network of Estate Agents.
The latest, on the 24th October 2025, was 2, Peace Grove, Welwyn, AL6 0RS, a freehold house which sold for £675,000.
Read more about house prices in AL6.
- Sold Oct 2025£675,000 | 4 Bed House2, Peace Grove, Welwyn, AL6 0RS2, Peace Grove, Welwyn, AL6 0RS
- Sold Oct 2025£715,000 | 4 Bed House31, Hillside Way, Welwyn, AL6 0TY31, Hillside Way, Welwyn, AL6 0TY
- Sold Jul 2024£687,500 | 3 Bed House16, The Chase, Welwyn, AL6 0QT16, The Chase, Welwyn, AL6 0QT
- Sold May 2024£630,000 | 3 Bed House48, Robbery Bottom Lane, Welwyn, AL6 0UN48, Robbery Bottom Lane, Welwyn, AL6 0UN
- Sold Mar 2024£750,000 | 4 Bed House13B, Woodland Way, Welwyn, AL6 0RZ13B, Woodland Way, Welwyn, AL6 0RZ
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £805,090, ranging from £442,508 to £1,387,244.
- 19 Chestnut Walk
4 Bed House | 15 m | Est. Value: £796,759
- 28 Chestnut Walk
5 Bed House | 39 m | Est. Value: £1,012,283
- 30 Chestnut Walk
4 Bed House | 39 m | Est. Value: £712,714
- 26A Chestnut Walk
3 Bed House | 44 m | Est. Value: £594,965
- 42 Robbery Bottom Lane
4 Bed House | 46 m | Est. Value: £849,203
Location Comparison
Of the 37 addresses on Chestnut Walk, Welwyn, AL6, 21, Chestnut Walk, Welwyn comes out as the 21st largest and the 22nd most expensive in our analysis of the public data.
It is also £88k less expensive than the average property across the AL6 district.
More reading links
Schools Nearby
- Oaklands Primary School900 m away
- St Michael's Woolmer Green CofE VA Primary School900 m away
- All Saints Church of England Voluntary Aided Primary School, Datchworth2.2 km away
- Monk's Walk School3.1 km away
- Ridgeway Academy4.5 km away
- Barnwell School5.3 km away
More reading links
Public Transport Nearby
- Welwyn North|2.2 km away
- Knebworth|2.7 km away
- Watton-at-Stone|4.7 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.





