1b, Oaklea, Welwyn, AL6 0PT
About 1b
1b is a four-bedroom detached house in Welwyn (AL6 0PT). It has a recorded floor area of 295 m² (around 3175 sq ft), construction records dating it to 1950-1966 and council tax band G. The latest certificate (April 2023) shows an F (score 27), near the bottom of the EPC scale. Earlier certificates rated it C (April 2015); the latest reading is 3 bands lower. Between certificates, wall efficiency dropped from Good to Poor and roof efficiency dropped from Good to Average. The recommended improvements would lift it to C (score 72), a 3-band jump. Main heating runs on electricity. Other recorded features include attached land beyond the plot.
Held since May 2010 — that's 16 years off the open market, well above the local norm. At 295 m² the property is well over the postcode median (190 m² across 14 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 86% of similar EPCs). Across 1998–2010, sale prices on this property compounded at 4.7% per year. Today's modelled estimate of £944,000 sits 88.8% above the 2010 sale of £500,000. On a £-per-square-foot basis, the last sale (£157/sq ft) was about 37.8% below the postcode norm.
Know exactly what you're buying at 1b
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
- Dining roomYes
- Utility roomYes
- EnsuiteYes
Outside
- Private gardenYes
- GarageDouble, Detached
- LandYes
Energy performance
1b's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Loft insulation upgraded to recommended levels
Floor insulation added or improved
More low energy lighting installed
Solar PV panels (30 kWp) installed
Heating system changed
Changed to a more efficient fuel source
Heating controls changed
Hot water system changed
Planning history
1b has no planning applications on record.
Notable planning nearby
1applications of note in the surrounding area
We flagged 1 thing worth checking at 1b
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
1b's estimated value is more than triple its earliest registered sale price (1998).
£944,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.7% per year over 12 years.
£500,000
Growth on file: 4.7% per year over 12 years.
Sales timeline
27 May 2010Most recent
£500,000
+72.4%over 11 years15 June 1998
£290,000
Median price across the last 5 sales in AL6 0PT: £675,000 (2025–2017).
Everything we know about 1b, 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 Oaklea homes
Floor Area for 1b runs comfortably ahead of the street norm.
Price per m²
£1,695
Street avg £3,534
Floor Area
295 m²
Street avg 178 m²
Habitable Rooms
11 rooms
Street avg 7 rooms
CO₂ Emissions
17.0 t/year
Street avg 6.7 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
The Avenue — bus stop.
Closest school
0.1 km
Oaklands Primary School. 9 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.