3 Tewin Hill, Tewin, Welwyn, AL6 0LJ
About 3 Tewin Hill
3 Tewin Hill is a four-bedroom semi-detached house in Tewin, Welwyn, Welwyn (AL6 0LJ). It has a recorded floor area of 128 m² (around 1378 sq ft), construction records dating it to 1983-1990 and council tax band E. The latest certificate (March 2020) shows a C (score 75), near the top of the C band. When first surveyed in October 2013 the rating was D, the property has climbed 1 band since. Between certificates, window efficiency went from Very Poor to Good and hot-water efficiency went from Average to Good. The recommended improvements would push it to B (score 83). Records show the property has been extended at some point in its history.
At 128 m² the property is well over the postcode median (91 m² across 7 EPCs), placing it in the larger end of the local stock. One planning record on file: an extension approved in 2016. Past consents include an extension and a loft conversion, meaningful when judging how the property has evolved. Across 1997–2021, sale prices on this property compounded at 6.5% per year. Today's modelled estimate of £724,000 is 11.4% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£472/sq ft) was about 24.1% above the typical sold price in the postcode. Last sale on file: £650,000 in June 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 3 Tewin Hill
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
- Bathrooms1
- EnsuiteYes
Outside
- GarageYes
Building
- Previously extendedYes
- RefurbishedYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency improved
Single glazing replaced with double or better glazing
Loft insulation upgraded to recommended levels
Planning history
- Jan 2016Loft ConversionOutlineIn report
Extension: Single storey · Rear of property
Erection of a single storey rear extension and loft conversion to include roof lights .
- Agent
- HOME EXTENSION DESIGNS
Extension- Documents
- 6 docs on file
- Reference
- 3/15/2439/CLP
We flagged 1 thing worth checking at 3 Tewin Hill
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
Price for 3 Tewin Hill has grown more than fourfold since the 1997 starting point.
£724,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.5% per year over 24 years.
£650,000
Growth on file: 6.5% per year over 24 years.
Sales timeline
23 June 2021Most recent
£650,000
+85.7%over 7 years17 January 2014
£350,000
+150.1%over 16 years26 March 1997
£139,950
Median price across the last 5 sales in AL6 0LJ: £490,000 (2024–2016).
Nearby sales in AL6 0LJ
Everything we know about 3 Tewin Hill, 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 Tewin Hill homes
On habitable rooms, 3 Tewin Hill stands well clear of the street.
Price per m²
£5,078
Street avg £5,004
Floor Area
128 m²
Street avg 102 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
3.5 t/year
Street avg 3.9 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
Plume of Feathers PH — bus stop.
Closest school
0.8 km
Tewin Cowper Church of England Voluntary Aided Primary School. 8 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.