15 De Soissons Close, Welwyn Garden City, AL8 6YX
About 15 De Soissons Close
15 De Soissons Close is a two-bedroom mid-terrace house in Welwyn Garden City (AL8 6YX). It has a recorded floor area of 61 m² (around 657 sq ft), construction records dating it to 2003-2006 and council tax band C. The latest certificate (April 2018) returns a B (score 81), comfortably above the UK average. At 61 m² this is the 8th smallest of 18 units on EPC record in the building, where floor areas span 49–103 m². The building's EPC ratings span C to B, with this unit at the top.
A recent sale: £305,000 in October 2025. Its energy rating outperforms most of the postcode (better than 71% of similar EPCs). Across 2005–2025, sale prices on this property compounded at 2.3% per year. On a £-per-square-foot basis, the last sale (£465/sq ft) was about 48% above the typical sold price in the postcode.
Know exactly what you're buying at 15 De Soissons Close
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
What this property has
Inside
- Bedrooms2
- Bathrooms2
- EnsuiteYes
Outside
- Communal gardenYes
- ParkingAllocated
Energy performance
15 De Soissons Close's carbon output is low for the local stock.
EPC Rating
Planning history
15 De Soissons Close has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
£319,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.3% per year over 21 years.
£305,000
Growth on file: 2.3% per year over 21 years.
Sales timeline
16 October 2025Most recent
£305,000
+15.1%over 7 years2 September 2018
£265,000
+39.5%over 13 years24 March 2005
£190,000
Median price across the last 5 sales in AL8 6YX: £510,000 (2025–2021).
Nearby sales in AL8 6YX
5 De Soissons Close, Welwyn Garden City, AL8 6YX
Sold Aug 2025
£310,0002 De Soissons Close, Welwyn Garden City, AL8 6YX
Sold Apr 2025
£517,00018 De Soissons Close, Welwyn Garden City, AL8 6YX
Sold Jul 2024
£550,0001 De Soissons Close, Welwyn Garden City, AL8 6YX
Sold Dec 2022
£510,0003 De Soissons Close, Welwyn Garden City, AL8 6YX
Sold Jan 2021
£510,000
Everything we know about 15 De Soissons Close, 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 De Soissons Close homes
15 De Soissons Close is notably below the street on years held.
Price per m²
£5,000
Street avg £3,923
Floor Area
61 m²
Street avg 58 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
1.1 t/year
Street avg 1.2 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
Newfields — bus stop.
Closest school
0.4 km
Stanborough School. 12 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.