9 Blackthorn Close, St Albans, AL4 9RP
About 9 Blackthorn Close
9 Blackthorn Close is a semi-detached house in St Albans (AL4 9RP). It has a recorded floor area of 149 m² (around 1604 sq ft), construction records dating it to 1950-1966 and council tax band F. The latest certificate (November 2019) shows a C (score 69), just inside the C band. The recommended improvements would push it to B (score 82).
At 149 m² the property is well over the postcode median (107 m² across 10 EPCs), placing it in the larger end of the local stock. 2 planning records sit against the property, 1 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved.
Energy performance
EPC Rating
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Level 3 Building Survey
Because the property has been extended more than once, we believe a Level 3 building survey should be considered.
From £1,645 · Includes VAT
Planning history
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
2 applications on record at 9 Blackthorn Close, St Albans, AL4 9RP
- Apr 2024ExtensionOutlineOutcome in report
Extension: Single storey · Rear of property
Prior Approval - Single storey rear extension 3.8m in height x 4m in depth and 2.5m in height to the eaves
- Documents
- 13 docs on file
- Reference
- 5/2024/0462
- More recent applications — locked
- Loft ConversionJul 2024Decision
Unlock 9 Blackthorn Close, St Albans, AL4 9RP'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- Every decision — granted, refused or withdrawn (2 on record)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 27 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
9 Blackthorn Close has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£1,007,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in AL4 9RP: £855,000 (2025–2015).
Nearby sales in AL4 9RP
13 Blackthorn Close, St Albans, AL4 9RP
Sold Jan 2025
£1,150,00018 Blackthorn Close, St Albans, AL4 9RP
Sold Sept 2021
£855,00016 Blackthorn Close, St Albans, AL4 9RP
Sold Sept 2015
£706,50010 Blackthorn Close, St Albans, AL4 9RP
Sold May 2015
£855,00012 Blackthorn Close, St Albans, AL4 9RP
Sold Mar 2015
£685,000
Versus other Blackthorn Close homes
9 Blackthorn Close is notably below the street on co₂ emissions.
EPC Rating
69 (C)
Street avg 66 (D)
Floor Area
149 m²
Street avg 120 m²
CO₂ Emissions
5.7 t/year
Street avg 4.3 t/year
Habitable Rooms
7 rooms
Street avg 6 rooms
Similar properties nearby
The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
4/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Skys Wood Road Terminus — bus stop.
Closest school
0.1 km
Skyswood Primary & Nursery School. 28 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







