4a, Crown Street, Redbourn, St Albans, AL3 7JX
About 4a
4a is a detached house in Redbourn, St. Albans, St Albans (AL3 7JX). It has a recorded floor area of 148 m² (around 1593 sq ft), construction records dating it to 1976-1982 and council tax band G. The latest certificate (May 2019) shows a C (score 72). When first surveyed in October 2009 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Average to Good, roof efficiency went from Poor to Average and window efficiency went from Average to Good. The recommended improvements would push it to B (score 82).
At 148 m² the property is well over the postcode median (113 m² across 27 EPCs), placing it in the larger end of the local stock.
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Roof insulation improved
More low energy lighting installed
Windows upgraded, improving insulation
Wall insulation upgraded
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has been extended more than once, we believe a Level 3 building survey should be considered.
From £1,220 · Includes VAT
Planning history
4a has no planning applications on record.
A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.
Sales history & valuation
4a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£770,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in AL3 7JX: £630,000 (2025–2022).
Nearby sales in AL3 7JX
27 Crown Street, Redbourn, St Albans, AL3 7JX
Sold Jan 2025
£630,00033a, Crown Street, Redbourn, St Albans, AL3 7JX
Sold Oct 2024
£635,00019 Crown Street, Redbourn, St Albans, AL3 7JX
Sold Jul 2024
£445,000Crown House 1a, Flat 2, Crown Street, Redbourn, St Albans, AL3 7JX
Sold Feb 2024
£330,00033b, Crown Street, Redbourn, St Albans, AL3 7JX
Sold Oct 2022
£1,025,000
Versus other Crown Street homes
On epc rating, 4a stands well clear of the street.
EPC Rating
72 (C)
Street avg 64 (D)
Floor Area
148 m²
Street avg 127 m²
CO₂ Emissions
4.7 t/year
Street avg 5.3 t/year
Habitable Rooms
6 rooms
Street avg 6 rooms
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The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Lamb Lane — bus stop.
Closest school
0.7 km
Redbourn Primary School. 3 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







