Are you a property professional?Get qualified leads from motivated homeowners.
Get startedAre you a property professional?Get qualified leads from motivated homeowners.
Get started21 The Swallows is a three-bedroom semi-detached house in Welwyn Garden City (AL7 1BX). It has a recorded floor area of 65 m² (around 700 sq ft), construction records dating it to 1983-1990 and council tax band D. The latest certificate (March 2023) shows a D (score 68), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 83), a 2-band jump. Other recorded features include outbuildings. Records show the property has been extended at some point in its history.
Sale prices here have outpaced England HPI: 6.5% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£615/sq ft) was about 156% above the typical sold price in the postcode. One planning record on file: a garage conversion approved in 2018. Past consents include a garage conversion, meaningful when judging how the property has evolved. Last sale on file: £430,000 in February 2024.
Recommended upgrades on file would lift this property by multiple EPC bands.
Conversion of garage to habitable space including alterations to openings
Latest sale on 21 The Swallows was the highest on Land Registry record across the postcode.
£452,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.5% per year over 27 years.
£430,000
Growth on file: 6.5% per year over 27 years.
21 The Swallows outperforms the street on price per m² by a wide margin.
Price per m²
£6,615
Street avg £2,939
Floor Area
65 m²
Street avg 66 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
0.3 km
Sloansway — bus stop.
9 February 2024Most recent
£430,000
+352.6%over 24 years4 May 1999
£95,000
+18.0%over 1 year6 June 1997
£80,500
Median price across the last 5 sales in AL7 1BX: £275,000 (2025–2020).
Street avg 4 rooms
CO₂ Emissions
2.7 t/year
Street avg 3.2 t/year
AL7 1UN
Closest school
0.3 km
St John's CofE Primary School. 19 schools nearby.
Find out what your property is worth with a free valuation from a top-rated local estate agent.
Free valuation
An expert visits your home
Local expertise
An agent who knows your area
No obligation
You decide if and when to sell