1 Gainsborough Avenue, St Albans, AL1 4NJ
About 1 Gainsborough Avenue
1 Gainsborough Avenue is a five-bedroom detached house in St Albans (AL1 4NJ). It has a recorded floor area of 195 m² (around 2099 sq ft), construction records dating it to 1930-1949 and council tax band G. The latest certificate (October 2024) shows a D (score 64), on the cusp of jumping into the C band. When first surveyed in June 2012 the rating was F, the property has climbed 2 bands since. Between certificates, window efficiency went from Very Poor to Good, hot-water efficiency went from Average to Good and lighting went from Very Poor to Very Good; while roof efficiency dropped from Poor to Very Poor. The recommended improvements would push it to C (score 78).
At 195 m² the property is well over the postcode median (147 m² across 11 EPCs), placing it in the larger end of the local stock. Most recent transfer was July 2025 at £1,795,808 — fresh data. 9 planning records sit against the property, 1 approved, 3 refused. Past consents include tree works, meaningful when judging how the property has evolved. The record references conservation-area consent, which constrain future alterations. Across 2012–2025, sale prices on this property compounded at 8.5% per year. On a £-per-square-foot basis, the last sale (£856/sq ft) was about 66.8% above the typical sold price in the postcode.
What this property has
Inside
- Bedrooms5
- Bathrooms3
- Dining roomYes
- Utility roomYes
- StudyYes
Energy performance
1 Gainsborough Avenue's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Certificate validity
Valid until 31 October 2034
Property Improvements
Changes detected from historical EPC data
Replaced storage heaters with gas boiler
Connected to mains gas supply
Heating controls upgraded for better temperature management
Hot water system upgraded
Single glazing replaced with double or better glazing
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has been extended more than once, we believe a Level 3 building survey should be considered.
From £1,795 · Includes VAT
Planning history
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
9 applications on record at 1 Gainsborough Avenue, St Albans, AL1 4NJ
- Feb 2013ExtensionOutcome in report
Extension: Rear of property
Certificate of Lawfulness (proposed) - Single storey rear extensions
- Documents
- 9 docs on file
- Reference
- 5/2012/3399
- More recent applications — locked
- Tree WorksOct 2025Decision
- Tree WorksMar 2019Decision
+ 6 more applications in the report
Unlock 1 Gainsborough Avenue, St Albans, AL1 4NJ's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (9 on record)
- All 9 applications on this property in full, plus 1 notable nearby
- The 116 documents, officer reports & conditions
- What the pattern means for extending or converting here
One time fee only - money back guarantee
Sales history & valuation
Latest sale on 1 Gainsborough Avenue was the highest on Land Registry record across the postcode.
£1,784,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.5% per year over 13 years.
£1,795,808
Growth on file: 8.5% per year over 13 years.
Sales timeline
31 July 2025Most recent
£1,795,808
+180.0%over 12 years23 November 2012
£641,250
Median price across the last 5 sales in AL1 4NJ: £1,285,000 (2024–2014).
Nearby sales in AL1 4NJ
17 Gainsborough Avenue, St Albans, AL1 4NJ
Sold Apr 2024
£1,300,00015 Gainsborough Avenue, St Albans, AL1 4NJ
Sold Oct 2022
£1,650,0005 Gainsborough Avenue, St Albans, AL1 4NJ
Sold Jul 2019
£1,015,00027 Gainsborough Avenue, St Albans, AL1 4NJ
Sold Feb 2016
£1,285,00019 Gainsborough Avenue, St Albans, AL1 4NJ
Sold Nov 2014
£1,088,000
Versus other Gainsborough Avenue homes
1 Gainsborough Avenue outperforms the street on price per m² by a wide margin.
Price per m²
£9,209
Street avg £6,425
Floor Area
195 m²
Street avg 153 m²
Habitable Rooms
9 rooms
Street avg 7 rooms
CO₂ Emissions
8.4 t/year
Street avg 6.0 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
283/mo
Falling year-on-year across the wider district.
Nearest stop
0.3 km
Blenheim Road — bus stop.
Closest school
0.5 km
Verulam School. 36 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







