23 Cornwall Road, St Albans, AL1 1SQ
About 23 Cornwall Road
23 Cornwall Road is a three-bedroom semi-detached house in St Albans (AL1 1SQ). It has a recorded floor area of 88 m² (around 947 sq ft), construction records dating it to 1900-1929 and council tax band E. The latest certificate (April 2017) shows an E (score 52), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since November 2015. Between certificates, roof efficiency went from Poor to Good and lighting went from Very Poor to Poor. The recommended improvements would lift it to B (score 82), a 3-band jump. Our model identifies extension potential, subject to local planning policy.
Today's modelled estimate of £817,000 is 30.1% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£663/sq ft) was about 35.1% above the typical sold price in the postcode. On the market in August 2017 and unlisted since — roughly 9 years. One historical planning record sits against the property in 2017.
What this property has
Inside
- Bedrooms3
- Open-plan layoutYes
- Dining roomYes
Outside
- Private gardenSouth-facing
Building
- Extension potentialPossible
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Certificate validity
Valid until 5 April 2027
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Windows upgraded, improving insulation
Loft insulation upgraded to recommended levels
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 £1,360 · Includes VAT
Planning history
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
1 application on record at 23 Cornwall Road, St Albans, AL1 1SQ
- Nov 2017DemolitionFullOutcome in report
Extension: Single storey · Rear of property
Single storey rear extension with a rooflight and alterations to openings following demolition of existing rear extension
Extension- Documents
- 8 docs on file
- Reference
- 5/2017/2891
Unlock 23 Cornwall Road, St Albans, AL1 1SQ's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 5 notable nearby
- The 8 documents, officer reports & conditions
- What the pattern means for extending or converting here
One time fee only - money back guarantee
Sales history & valuation
23 Cornwall Road valuation sits well clear of the typical sold price in this postcode.
£817,000
Modelled from EPC, postcode comparables.
£628,000
Recorded with HM Land Registry.
Sales timeline
10 August 2017Most recent
£628,000
Median price across the last 5 sales in AL1 1SQ: £755,000 (2024–2022).
Nearby sales in AL1 1SQ
Versus other Cornwall Road homes
Price per m² for 23 Cornwall Road lags the street by a wide margin.
Price per m²
£7,136
Street avg £7,635
Floor Area
88 m²
Street avg 89 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
5.1 t/year
Street avg 4.9 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
0.2 km
Grosvenor Road — bus stop.
Closest school
0.4 km
St Peter's School. 32 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







