1a, Gainsborough Avenue, St Albans, AL1 4NJ
About 1a
1a is a 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).
Held since October 2001 — that's 25 years off the open market, well above the local norm. 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. Across 1999–2001, sale prices on this property compounded at 14.2% per year. Today's modelled estimate of £1,602,000 sits 150.3% above the 2001 sale of £640,000. On a £-per-square-foot basis, the last sale (£305/sq ft) was about 48.7% below the postcode norm.
Everything you need to know about 1a
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee
The data behind every report
Energy performance
1a's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
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
1a has no planning applications on record.
But the area is active
1 notable application nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
1a's estimated value is more than triple its earliest registered sale price (1999).
£1,602,000
Modelled from EPC, postcode comparables and a sale-price growth of 14.2% per year over 2 years.
£640,000
Growth on file: 14.2% per year over 2 years.
Sales timeline
23 October 2001Most recent
£640,000
+33.6%over 1 year6 April 2000
£479,000
-4.0%8 December 1999
£499,000
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
1a is notably below the street on price per m².
Price per m²
£3,282
Street avg £6,426
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
Everything you need to know about 1a
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee
The data behind every report
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
5/mo
Steady 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.