20 Mardley Heights, AL6 0SX
Sold prices, property history and local context for 20 Mardley Heights, Welwyn, AL6 0SX, from HM Land Registry and EPC records.
20 Mardley Heights is a freehold detached house on Mardley Heights in AL6. It last sold for £750,000 in 2021 — its 2nd recorded sale, up 88% on its first recorded sale of £399,500 in 2006. At 137 m² (per its EPC) the last sale works out near £5,474/m². For context, AL6's median over the last 8 years is £695,000 — this home's last sale was 8% higher.
Get the full £5 report — a precise comparables-based valuation, EPC & running costs, flood/mining risk, planning activity, schools, crime and more, for this exact home.
What might it be worth now?
An indicative range from carrying the 2021 sale forward at this home's own historical growth rate — not a formal valuation.
Based on this home's own compounded sale-price growth (4.2% a year between its recorded sales), projected from its last sale. It can't see improvements, condition or anything specific to the property — the £5 report values it against individual comparable sales instead.
Sale history for 20 Mardley Heights
Every transaction recorded by HM Land Registry for this address, newest first.
The street and the area
Where 20 Mardley Heights sits in its local market.
20 Mardley Heights: quick answers
From HM Land Registry, EPC and VOA records.
20 Mardley Heights last sold for £750,000 on 25 Nov 2021, according to HM Land Registry.
HM Land Registry records 2 sales for 20 Mardley Heights between 2006 and 2021. Sales before 1995 are not in the public dataset.
Its most recent Energy Performance Certificate records 137 m² of floor area.
Carrying its 2021 sale price forward with its own compounded sale-price growth of 4.2% a year across 2 sales suggests roughly £802,000–£1,014,000 as of 2026. This is indicative only — the full report values it against individual comparable sales.
Get the full £5 report — a precise comparables-based valuation, EPC & running costs, flood/mining risk, planning activity, schools, crime and more, for this exact home.
Contains HM Land Registry data © Crown copyright and database right 2026. EPC data © Crown copyright. Council tax band from the Valuation Office Agency. Licensed under the Open Government Licence v3.0. Sales before 1995 are not in the public dataset. Figures describe recorded transactions and are not a valuation of this home; the indicative range is a district-level projection, not a survey or appraisal.