15 Old Watling Street, Flamstead, St Albans, AL3 8HL
About 15 Old Watling Street
15 Old Watling Street is a three-bedroom detached house in Flamstead, St. Albans, St Albans (AL3 8HL). It has a recorded floor area of 93 m² (around 1001 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (April 2025) shows a D (score 64), on the cusp of jumping into the C band. When first surveyed in June 2015 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Average, roof efficiency went from Average to Good and lighting went from Average to Very Good. The recommended improvements would push it to C (score 78).
A recent sale: £520,000 in May 2026. At 93 m² it sits well below the postcode median (139 m² across 16 EPCs), making it one of the more compact homes locally. 2 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. Across 1997–2026, sale prices on this property compounded at 5.2% per year. On a £-per-square-foot basis, the last sale (£519/sq ft) was about 80.2% above the typical sold price in the postcode.
What this property has
Inside
- Bedrooms3
- Bathrooms2
Energy performance
EPC Rating
Certificate validity
Valid until 30 April 2035
Property Improvements
Changes detected from historical EPC data
Windows upgraded, improving insulation
Cavity wall insulation installed
Roof insulation improved
More low energy lighting installed
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Planning history
15 Old Watling Street has 2 separate extension applications on the council record.
2 applications on record at 15 Old Watling Street, Flamstead, St Albans, AL3 8HL
- May 2005ExtensionFullOutcome in report
Extension: Two storey · Side of property
Two storey side extension
- Documents
- 8 docs on file
- Reference
- 4/00340/05/FHA
- More recent applications — locked
- ExtensionMar 2006Decision
Unlock 15 Old Watling Street, Flamstead, St Albans, AL3 8HL'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- Every decision — granted, refused or withdrawn (2 on record)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 14 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Price for 15 Old Watling Street has grown more than fourfold since the 1997 starting point.
£515,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.2% per year over 29 years.
£520,000
Growth on file: 5.2% per year over 29 years.
Sales timeline
5 May 2026Most recent
£520,000
+333.3%over 29 years21 February 1997
£120,000
Median price across the last 5 sales in AL3 8HL: £465,000 (2025–2018).
Nearby sales in AL3 8HL
5 Old Watling Street, Flamstead, St Albans, AL3 8HL
Sold Oct 2025
£425,00012 Old Watling Street, Flamstead, St Albans, AL3 8HL
Sold Dec 2020
£550,00010 Old Watling Street, Flamstead, St Albans, AL3 8HL
Sold Sept 2020
£465,00023 Old Watling Street, Flamstead, St Albans, AL3 8HL
Sold Jun 2019
£390,00024 Old Watling Street, Flamstead, St Albans, AL3 8HL
Sold Apr 2018
£605,000
Versus other Old Watling Street homes
Years Held for 15 Old Watling Street lags the street by a wide margin.
Price per m²
£5,591
Street avg £3,315
Floor Area
93 m²
Street avg 129 m²
Habitable Rooms
5 rooms
Street avg 7 rooms
CO₂ Emissions
4.1 t/year
Street avg 6.7 t/year
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The neighbourhood at a glance
Crime
170/mo
Steady year-on-year across the wider district.
Nearest stop
0.4 km
Holiday Inn — bus stop.
Closest school
1.3 km
Flamstead Village School. 3 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







