21 Harlesden Road, St Albans, AL1 4LE
About 21 Harlesden Road
21 Harlesden Road is a three-bedroom detached house in St Albans (AL1 4LE). It has a recorded floor area of 99 m² (around 1066 sq ft), construction records dating it to 1900-1929 and council tax band E. The latest certificate (June 2023) shows a D (score 60), on the cusp of jumping into the C band. When first surveyed in July 2013 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Very Poor to Good and lighting went from Good to Very Good; while roof efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 83), a 2-band jump.
Today's modelled estimate of £844,000 sits 56.3% above the 2014 sale of £540,000. On a £-per-square-foot basis, the last sale (£507/sq ft) was about 33.3% above the typical sold price in the postcode. Last sold in January 2014, so it's been off the market for around 12 years. 2 planning records sit against the property, 0 approved, 0 refused.
What this property has
Inside
- Bedrooms3
- Bathrooms1
- Dining roomYes
Outside
- Private gardenWest-facing
Everything you need to know about 21 Harlesden Road
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Single glazing replaced with double or better glazing
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, has been extended more than once, and has solid (non-cavity) walls, 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 21 Harlesden Road, St Albans, AL1 4LE
- Jan 2024Loft ConversionFullOutcome in report
Removal of chimney stack, raising and reconfigure of roof to incorporate a rear box dormer and front rooflights to accommodate a loft conversion
- Documents
- 8 docs on file
- Reference
- 5/2024/0117
- More recent applications — locked
- ExtensionAug 2024Decision
Unlock 21 Harlesden Road, St Albans, AL1 4LE'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, plus 1 notable nearby
- The 17 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
21 Harlesden Road valuation sits well clear of the typical sold price in this postcode.
£844,000
Modelled from EPC, postcode comparables.
£540,000
Recorded with HM Land Registry.
Sales timeline
31 January 2014Most recent
£540,000
Median price across the last 5 sales in AL1 4LE: £950,000 (2025–2023).
Nearby sales in AL1 4LE
Versus other Harlesden Road homes
21 Harlesden Road is notably below the street on price per m².
Price per m²
£5,455
Street avg £6,593
Floor Area
99 m²
Street avg 113 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
5.0 t/year
Street avg 5.4 t/year
Everything you need to know about 21 Harlesden Road
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee

Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Harlesden Road — bus stop.
Closest school
0.2 km
Fleetville Infant and Nursery School. 35 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.









