23 Byfield, Welwyn Garden City, AL8 7AL
About 23 Byfield
23 Byfield is a semi-detached house in Welwyn Garden City (AL8 7AL). It has a recorded floor area of 87 m² (around 936 sq ft), construction records dating it to 1950-1966 and council tax band D. The latest certificate (December 2024) shows a C (score 73). When first surveyed in November 2019 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Good, window efficiency went from Average to Good and lighting went from Good to Very Good. The recommended improvements would push it to B (score 86).
Today's modelled estimate of £425,000 is 21.4% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£374/sq ft) was about 49% above the typical sold price in the postcode. Last sale on file: £350,000 in March 2020.
Know exactly what you're buying at 23 Byfield
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Window efficiency improved
Loft insulation upgraded to recommended levels
More low energy lighting installed
Planning history
23 Byfield has no planning applications on record.
Notable planning nearby
1applications of note in the surrounding area
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£425,000
Modelled from EPC, postcode comparables.
£350,000
Recorded with HM Land Registry.
Sales timeline
29 March 2020Most recent
£350,000
Median price across the last 5 sales in AL8 7AL: £387,500 (2025–2022).
Nearby sales in AL8 7AL
Everything we know about 23 Byfield, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?
Versus other Byfield homes
EPC Rating for 23 Byfield runs comfortably ahead of the street norm.
Price per m²
£4,023
Street avg £3,890
Floor Area
87 m²
Street avg 87 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
2.8 t/year
Street avg 3.5 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Sewells — bus stop.
Closest school
0.2 km
Harwood Hill Junior Mixed Infant and Nursery School. 19 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.