9 Boissy Close, Colney Heath Lane, St Albans, AL4 0UE
About 9 Boissy Close
9 Boissy Close is a semi-detached house in St Albans (AL4 0UE). It has a recorded floor area of 98 m² (around 1055 sq ft), construction records dating it to 1983-1990 and council tax band E. The latest certificate (July 2020) shows a C (score 69), just inside the C band. The recommended improvements would push it to B (score 82).
One planning record on file: an extension approved in 2022. Past consents include an extension, meaningful when judging how the property has evolved. Across 2020–2020, sale prices on this property compounded at 7.1% per year. Today's modelled estimate of £711,000 is 35.4% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£498/sq ft) was about 86% above the typical sold price in the postcode. Most recent transfer: September 2020 at £525,000.
Energy performance
EPC Rating
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Planning history
9 Boissy Close has an approved single-storey rear extension on the planning record.
1 application on record at 9 Boissy Close, Colney Heath Lane, St Albans, AL4 0UE
- May 2022ExtensionOutlineOutcome in report
Extension: Single storey · Rear of property
Prior Notification - Single storey rear extension 3.55m in height x 4.5m in depth with 2.24m height to eaves
- Documents
- 9 docs on file
- Reference
- 5/2022/0745
Unlock 9 Boissy Close, Colney Heath Lane, St Albans, AL4 0UE'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- Every decision — granted, refused or withdrawn (1 on record)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 3 notable nearby
- The 9 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
9 Boissy Close changed hands twice within eighteen months — unusual for the area.
£711,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.1% per year over 1 year.
£525,000
Growth on file: 7.1% per year over 1 year.
Sales timeline
24 September 2020Most recent
£525,000
+7.1%30 July 2020
£490,000
Median price across the last 5 sales in AL4 0UE: £522,000 (2024–2014).
Nearby sales in AL4 0UE
4 Boissy Close, Colney Heath Lane, St Albans, AL4 0UE
Sold Jan 2024
£600,0007 Boissy Close, Colney Heath Lane, St Albans, AL4 0UE
Sold Jun 2022
£590,00014 Boissy Close, Colney Heath Lane, St Albans, AL4 0UE
Sold Jul 2015
£522,0006 Boissy Close, Colney Heath Lane, St Albans, AL4 0UE
Sold Jun 2014
£397,5002 Boissy Close, Colney Heath Lane, St Albans, AL4 0UE
Sold Dec 2012
£320,000
Versus other Boissy Close homes
On price per m², 9 Boissy Close stands well clear of the street.
Price per m²
£5,357
Street avg £3,917
Floor Area
98 m²
Street avg 110 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
3.5 t/year
Street avg 3.5 t/year
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1 Charlotte Close
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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
Nicholas Breakspear School — bus stop.
Closest school
0.3 km
Nicholas Breakspear Catholic School. 19 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







