Stonehills House, Flat 18, Stonehills, Welwyn Garden City, AL8 6DL
About Stonehills House
Stonehills House is a mid-terrace house in Welwyn Garden City (AL8 6DL). It has a recorded floor area of 23 m² (around 248 sq ft) and construction records dating it to 1950-1966. At 23 m² this is the smallest unit on EPC record across Stonehills House (23–75 m²). The building's EPC ratings span E to C across 35 units on file. The latest certificate (August 2022) shows a D (score 62), on the cusp of jumping into the C band. When first surveyed in September 2016 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency dropped from Very Good to Poor and window efficiency dropped from Very Good to Average. The recommended improvements would push it to C (score 78). Main heating runs on electricity.
At 23 m² it sits well below the postcode median (54 m² across 34 EPCs), making it one of the more compact homes locally. Last sold in March 2017, so it's been off the market for around 9 years. Today's modelled estimate of £135,000 is 17.4% above the 2017 sale price.
Know exactly what you're buying at Stonehills House
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
Hot water system upgraded
Planning history
Stonehills House has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
Latest sale on Stonehills House was the lowest on Land Registry record across the postcode.
£135,000
Modelled from EPC, postcode comparables.
£115,000
Recorded with HM Land Registry.
Sales timeline
29 March 2017Most recent
£115,000
Median price across the last 5 sales in AL8 6DL: £260,000 (2025–2023).
Nearby sales in AL8 6DL
Stonehills House, Flat 21, Stonehills, Welwyn Garden City, AL8 6DL
Sold Nov 2025
£260,000Stonehills House, Flat 34, Stonehills, Welwyn Garden City, AL8 6DL
Sold May 2025
£300,000Stonehills House, Flat 25, Stonehills, Welwyn Garden City, AL8 6DL
Sold Dec 2024
£295,000Stonehills House, Flat 14, Stonehills, Welwyn Garden City, AL8 6DL
Sold Jul 2024
£242,500Stonehills House, Flat 16, Stonehills, Welwyn Garden City, AL8 6DL
Sold Feb 2023
£230,000
Everything we know about Stonehills House, 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 Stonehills homes
Floor Area for Stonehills House lags the street by a wide margin.
Price per m²
£5,000
Street avg £4,634
Floor Area
23 m²
Street avg 54 m²
Habitable Rooms
1 rooms
Street avg 3 rooms
CO₂ Emissions
1.7 t/year
Street avg 2.6 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
Bus Station — bus station.
Closest school
0.7 km
Peartree Primary School. 21 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.