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
Certificate validity
Valid until 22 May 2029
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 £1,220 · 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- Every decision — granted, refused or withdrawn (2 on record)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.
£796,000
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: £635,000 (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
£445,00033b, Crown Street, Redbourn, St Albans, AL3 7JX
Sold Oct 2022
£1,025,0002 Crown Street, Redbourn, St Albans, AL3 7JX
Sold Jun 2022
£685,000
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
170/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.







