« Sold prices in Welwyn

Sold prices on Mardley Avenue, Welwyn

10 recorded sales · 9 properties · 2016–2025

Homes on Mardley Avenue, Welwyn have a median sold price of £677,500 across 10 recorded sales since 2016. Detached homes are the most common here, at a median of £762,500. That's 142% above the England & Wales average of around £280,000. Within Welwyn as a whole it is 6% below the town’s average sold price across all recorded sales of £720,798. The most recent sale was £750,000 in Jan 2025; the highest on record was £1,000,000 in 2024. Recorded prices are roughly up 13% between the earliest and most recent sales.
£677,500
Median sold price
£675,000
Average
£425,000–£1,000,000
Range
10
Sales recorded

By property type

TypeMedianSales
Detached£762,5006
Semi-detached£485,0004

Mardley Avenue falls in postcode district AL6 — see sold prices across the wider area.

Properties on Mardley Avenue

£750,000
17, MARDLEY AVENUE, WELWYN, WELWYN HATFIELD, HERTFORDSHIRE, AL6 0TU
DetachedJan 2025
£500,000
7A, MARDLEY AVENUE, WELWYN, WELWYN HATFIELD, HERTFORDSHIRE, AL6 0TU
Semi-detachedOct 2024
£1,000,000
39, MARDLEY AVENUE, WELWYN, WELWYN HATFIELD, HERTFORDSHIRE, AL6 0TU
DetachedMay 2024
£470,000
7, MARDLEY AVENUE, WELWYN, WELWYN HATFIELD, HERTFORDSHIRE, AL6 0TU
Semi-detachedOct 2022
£1,000,000
28, MARDLEY AVENUE, WELWYN, WELWYN HATFIELD, HERTFORDSHIRE, AL6 0TZ
DetachedOct 2022
£775,000
35, MARDLEY AVENUE, WELWYN, WELWYN HATFIELD, HERTFORDSHIRE, AL6 0TU
DetachedNov 2020
£690,000
16, MARDLEY AVENUE, WELWYN, WELWYN HATFIELD, HERTFORDSHIRE, AL6 0UD
DetachedAug 2018
£665,000
18, MARDLEY AVENUE, WELWYN, WELWYN HATFIELD, HERTFORDSHIRE, AL6 0UD
Semi-detachedAug 2017
£475,000
4, MARDLEY AVENUE, WELWYN, WELWYN HATFIELD, HERTFORDSHIRE, AL6 0UD
DetachedJun 2016

Other streets in Welwyn

How these figures are calculated. Every sale on this page is a completed transaction from HM Land Registry Price Paid data, registered between 2016 and 2025. We show the median rather than the average wherever there are enough sales, so one unusually high or low sale doesn’t distort the picture. Sales take time to be registered, so the most recent months are provisional. Prices are as recorded and are not adjusted for inflation; a street’s figures reflect the mix of what actually sold there.