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Get started1 By The Mount is a three-bedroom semi-detached house in Welwyn Garden City (AL7 3SY). It has a recorded floor area of 91 m² (around 980 sq ft), construction records dating it to 1967-1975 and council tax band D. The latest certificate (April 2017) shows a D (score 68), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 87), a 2-band jump.
Sale prices here have outpaced England HPI: 1.5% per year against 0% for the wider region. Today's modelled estimate of £494,000 is 17.6% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£429/sq ft) was about 27.7% above the typical sold price in the postcode. At 91 m² the property is well over the postcode median (57 m² across 29 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Most recent transfer: December 2020 at £420,000.
1 By The Mount sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£494,000
Modelled from EPC, postcode comparables and a sale-price growth of 1.5% per year over 3 years.
£420,000
Growth on file: 1.5% per year over 3 years.
CO₂ Emissions for 1 By The Mount lags the street by a wide margin.
Price per m²
£4,615
Street avg £3,647
Floor Area
91 m²
Street avg 83 m²
Habitable Rooms
4 rooms
Rail-style transport is unusually close for this postcode.
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Broadwater Crescent — bus stop.
2 December 2020Most recent
£420,000
+5.0%over 3 years14 August 2017
£400,000
Median price across the last 5 sales in AL7 3SY: £214,000 (2025–2020).
Street avg 5 rooms
CO₂ Emissions
3.5 t/year
Street avg 2.8 t/year
AL7 3HZ
Closest school
0.5 km
Our Lady Catholic Primary School. 22 schools nearby.
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