21 Napsbury Lane, St Albans, AL1 1DU
About 21 Napsbury Lane
21 Napsbury Lane is a detached house in St Albans (AL1 1DU). It has a recorded floor area of 150 m² (around 1615 sq ft), construction records dating it to 1930-1949 and council tax band G. The latest certificate (March 2022) shows an E (score 42), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 79), a 2-band jump.
It lags the bulk of the postcode on energy efficiency (less efficient than 72% of similar EPCs). Today's modelled estimate of £920,000 is 14.3% above the 2023 sale price. On a £-per-square-foot basis, the last sale (£499/sq ft) was about 77% above the typical sold price in the postcode. 2 planning records sit against the property, 1 approved, 0 refused. Last sale on file: £805,000 in August 2023.
Everything you need to know about 21 Napsbury Lane
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Energy performance
21 Napsbury Lane's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Certificate validity
Valid until 28 March 2032
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Level 3 Building Survey
Because the property has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
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Planning history
2 applications on record at 21 Napsbury Lane, St Albans, AL1 1DU
- Oct 2023ExtensionFullOutcome in report
Rear hip to gable and side dormer roof extension with rear rooflights
- Documents
- 7 docs on file
- Reference
- 5/2023/2038
- More recent applications — locked
- OutlineMay 2025Decision
Unlock 21 Napsbury Lane, St Albans, AL1 1DU's full planning history
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- Every decision — granted, refused or withdrawn (2 on record)
- All 2 applications on this property in full, plus 5 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 Napsbury Lane valuation sits well clear of the typical sold price in this postcode.
£920,000
Modelled from EPC, postcode comparables.
£805,000
Recorded with HM Land Registry.
Sales timeline
13 August 2023Most recent
£805,000
Median price across the last 5 sales in AL1 1DU: £888,000 (2024–2022).
Nearby sales in AL1 1DU
Versus other Napsbury Lane homes
21 Napsbury Lane is notably below the street on epc rating.
Price per m²
£5,367
Street avg £3,745
Floor Area
150 m²
Street avg 168 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
10.0 t/year
Street avg 6.3 t/year
Everything you need to know about 21 Napsbury Lane
The true value, the hidden risks and the full sale history, in one report.
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Similar properties nearby
The neighbourhood at a glance
Crime
283/mo
Falling year-on-year across the wider district.
Nearest stop
0.6 km
Birklands Park — bus stop.
Closest school
0.9 km
Samuel Ryder Academy. 26 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.