4b, Crown Street, Redbourn, St Albans, AL3 7JX
About 4b
4b 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 1983-1990 and council tax band G. The latest certificate (May 2019) shows a C (score 72). When first surveyed in November 2013 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Average to Good, window efficiency went from Poor to Good and lighting went from Average to Good; while roof efficiency dropped from Good to Average. 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. Across 2000–2020, sale prices on this property compounded at 4.7% per year. On a £-per-square-foot basis, the last sale (£473/sq ft) was about 66.8% above the typical sold price in the postcode. 2 planning records sit against the property, 0 approved, 0 refused. Most recent transfer: December 2020 at £754,000.
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
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 £1,360 · Includes VAT
Planning history
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
2 applications on record at 4b, Crown Street, Redbourn, St Albans, AL3 7JX
- Mar 2017ExtensionFullOutcome in report
Extension: Single storey · Rear of property
Single storey rear extension with installation of roof lantern
- Documents
- 7 docs on file
- Reference
- 5/2017/0120
- More recent applications — locked
- Loft ConversionAug 2021Decision
Unlock 4b, Crown Street, Redbourn, St Albans, AL3 7JX's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (2 on record)
- All 2 applications on this property in full
- The 26 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Sale price has at least doubled since 2000.
£815,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.7% per year over 21 years.
£754,000
Growth on file: 4.7% per year over 21 years.
Sales timeline
17 December 2020Most recent
£754,000
+166.9%over 19 years30 January 2001
£282,500
-2.6%over 11 months21 February 2000
£290,100
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, 4b stands well clear of the street.
Price per m²
£5,095
Street avg £4,612
Floor Area
148 m²
Street avg 127 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
4.7 t/year
Street avg 5.3 t/year
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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.







