4a, Woodside Road, Welwyn, AL6 0DR
About 4a
4a is a two-bedroom semi-detached house in Welwyn (AL6 0DR). It has a recorded floor area of 55 m² (around 592 sq ft), construction records dating it to 1950-1966 and council tax band C. The latest certificate (April 2020) shows a D (score 64), on the cusp of jumping into the C band. When first surveyed in April 2009 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Average and lighting went from Average to Very Good; while main heating dropped from Average to Poor. Main heating runs on electricity.
Held since October 2002 — that's 24 years off the open market, well above the local norm. Across 1997–2002, sale prices on this property compounded at 17.2% per year. Today's modelled estimate of £263,000 sits 110.4% above the 2002 sale of £125,000. On a £-per-square-foot basis, the last sale (£211/sq ft) was about 27.8% below the postcode norm. 2 bedrooms is on the smaller side for this postcode, where 4 is the typical count.
Know exactly what you're buying at 4a
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
- Bedrooms2
- Bathrooms1
- EnsuiteYes
Outside
- ParkingAllocated
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Cavity wall insulation installed
Loft insulation upgraded to recommended levels
More low energy lighting installed
Planning history
4a has no planning applications on record.
Notable planning nearby
1applications of note in the surrounding area
We flagged 1 thing worth checking at 4a
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
Sale price has at least doubled since 1997.
£263,000
Modelled from EPC, postcode comparables and a sale-price growth of 17.2% per year over 5 years.
£125,000
Growth on file: 17.2% per year over 5 years.
Sales timeline
3 October 2002Most recent
£125,000
+113.7%over 4 years19 December 1997
£58,500
Median price across the last 5 sales in AL6 0DR: £745,000 (2023–2021).
Everything we know about 4a, 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 Woodside Road homes
4a is notably below the street on epc rating.
Price per m²
£2,273
Street avg £2,998
Floor Area
55 m²
Street avg 59 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
3.3 t/year
Street avg 3.0 t/year
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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
0.1 km
Welwyn North Rail Station — railway station.
Closest school
0.7 km
St John's CofE Primary School. 13 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.