42a, Hertford Road, Digswell, Welwyn, AL6 0DB
About 42a
42a is a four-bedroom detached house in Digswell, Welwyn, Welwyn (AL6 0DB). It has a recorded floor area of 189 m² (around 2034 sq ft), construction records dating it to 2012 onwards and council tax band G. The latest certificate (December 2021) returns a B (score 81), comfortably above the UK average. The rating has held steady at B across 2 certificates since August 2013. Between certificates, window efficiency dropped from Very Good to Good.
At 189 m² the property is well over the postcode median (143 m² across 6 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 83% of similar EPCs). One planning record on file: tree works approved in 2020. Past consents include tree works, meaningful when judging how the property has evolved. Across 2013–2022, sale prices on this property compounded at 1.1% per year. On a £-per-square-foot basis, the last sale (£433/sq ft) was about 33.2% above the typical sold price in the postcode. Most recent transfer: July 2022 at £880,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 42a
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms4
- Bathrooms3
- Open-plan layoutYes
- Utility roomYes
- EnsuiteYes
- StudyYes
Outside
- GarageYes
Energy performance
EPC Rating
Planning history
- Jan 2020Tree WorksTreesIn report
Crown reduce 1x Oak tree (T1) by 2m
- Reference
- 6/2019/2948/TPO
We flagged 1 thing worth checking at 42a
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
Latest sale on 42a was the highest on Land Registry record across the postcode.
£906,000
Modelled from EPC, postcode comparables and a sale-price growth of 1.1% per year over 9 years.
£880,000
Growth on file: 1.1% per year over 9 years.
Sales timeline
31 July 2022Most recent
£880,000
+10.0%over 8 years28 August 2013
£800,000
Median price across the last 5 sales in AL6 0DB: £787,500 (2025–2017).
Nearby sales in AL6 0DB
32 Hertford Road, Digswell, Welwyn, AL6 0DB
Sold Mar 2025
£740,00034b, Hertford Road, Digswell, Welwyn, AL6 0DB
Sold Feb 2022
£820,00042 Hertford Road, Digswell, Welwyn, AL6 0DB
Sold Oct 2019
£845,00038 Hertford Road, Digswell, Welwyn, AL6 0DB
Sold Dec 2018
£490,00050 Hertford Road, Digswell, Welwyn, AL6 0DB
Sold Dec 2017
£787,500
Everything we know about 42a, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby
Versus other Hertford Road homes
42a outperforms the street on co₂ emissions by a wide margin.
Price per m²
£4,656
Street avg £4,681
Floor Area
189 m²
Street avg 172 m²
Habitable Rooms
7 rooms
Street avg 7 rooms
CO₂ Emissions
3.4 t/year
Street avg 5.4 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.4 km
Welwyn North Railway Station — bus stop.
Closest school
0.5 km
St John's CofE Primary School. 16 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.