3a, Harlesden Road, St Albans, AL1 4LE
About 3a
3a is a three-bedroom detached house in St Albans (AL1 4LE). It has a recorded floor area of 74 m² (around 797 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (November 2017) shows an E (score 51), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 80), a 2-band jump. Other recorded features include a conservatory. Our model identifies extension potential, subject to local planning policy.
At 74 m² it sits well below the postcode median (106 m² across 19 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 79% of similar EPCs). Today's modelled estimate of £684,000 is 32.8% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£647/sq ft) was about 70% above the typical sold price in the postcode. Last sale on file: £515,000 in June 2019. One historical planning record sits against the property in 2019.
What this property has
Inside
- Bedrooms3
- Bathrooms1
- Dining roomYes
- EnsuiteYes
- ConservatoryYes
Outside
- Private gardenRear
- GarageYes
Building
- Extension potentialPossible
Everything you need to know about 3a
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
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Planning history
1 application on record at 3a, Harlesden Road, St Albans, AL1 4LE
- Nov 2019ExtensionFullOutcome in report
Extension: Single storey · Rear of property
Single storey rear extension with roof lights
- Documents
- 17 docs on file
- Reference
- 5/2019/2181
Unlock 3a, Harlesden Road, St Albans, AL1 4LE's full planning history
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- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application 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
3a valuation sits well clear of the typical sold price in this postcode.
£684,000
Modelled from EPC, postcode comparables.
£515,000
Recorded with HM Land Registry.
Sales timeline
4 June 2019Most recent
£515,000
Median price across the last 5 sales in AL1 4LE: £950,000 (2025–2023).
Nearby sales in AL1 4LE
Versus other Harlesden Road homes
On epc rating, 3a runs well behind the street norm.
Price per m²
£6,959
Street avg £6,499
Floor Area
74 m²
Street avg 114 m²
Habitable Rooms
5 rooms
Street avg 6 rooms
CO₂ Emissions
5.0 t/year
Street avg 5.4 t/year
Everything you need to know about 3a
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

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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.









