5 Old Watling Street, Flamstead, St Albans, AL3 8HL
About 5 Old Watling Street
5 Old Watling Street is a semi-detached house in Flamstead, St. Albans, St Albans (AL3 8HL). It has a recorded floor area of 121 m² (around 1302 sq ft), construction records dating it to 1900-1929 and council tax band D. The latest certificate (June 2026) shows a C (score 78), near the top of the C band. When first surveyed in November 2015 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Good, roof efficiency went from Average to Very Good and window efficiency went from Average to Good; while lighting dropped from Very Good to Good. The recommended improvements would push it to B (score 83). This certificate was lodged in the last six months, so the rating reflects current condition.
A recent sale: £425,000 in October 2025. 2 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. Its energy rating outperforms most of the postcode (better than 88% of similar EPCs). Today's modelled estimate of £546,000 is 28.5% above the 2025 sale price. On a £-per-square-foot basis, the last sale (£326/sq ft) was about 17.9% above the typical sold price in the postcode.
Energy performance
The EPC has just been inspected, so the rating reflects current condition.
EPC Rating
Certificate validity
Valid until 9 June 2036
Property Improvements
Changes detected from historical EPC data
Hot water system upgraded
High performance glazing installed
Wall insulation improved
Loft insulation upgraded to recommended levels
More low energy lighting installed
Solar water heating installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £1,085 · Includes VAT
Planning history
A a two-storey side extension application was refused at 5 Old Watling Street in 2025.
2 applications on record at 5 Old Watling Street, Flamstead, St Albans, AL3 8HL
- Oct 2025ExtensionFullOutcome in report
Extension: Two storey · Side of property
Double storey side extension.
- Documents
- 4 docs on file
- Reference
- 25/02236/FHA
- More recent applications — locked
- ExtensionJan 2026Decision
Unlock 5 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 9 documents, officer reports & conditions
- What the pattern means for extending or converting here
One time fee only - money back guarantee
Sales history & valuation
5 Old Watling Street valuation sits well clear of the typical sold price in this postcode.
£546,000
Modelled from EPC, postcode comparables.
£425,000
Recorded with HM Land Registry.
Sales timeline
27 October 2025Most recent
£425,000
Median price across the last 5 sales in AL3 8HL: £520,000 (2026–2018).
Nearby sales in AL3 8HL
15 Old Watling Street, Flamstead, St Albans, AL3 8HL
Sold May 2026
£520,00012 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
EPC Rating for 5 Old Watling Street runs comfortably ahead of the street norm.
Price per m²
£3,512
Street avg £3,489
Floor Area
121 m²
Street avg 127 m²
Habitable Rooms
6 rooms
Street avg 7 rooms
CO₂ Emissions
2.6 t/year
Street avg 6.8 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.







