Basement Flat, 12 Grosvenor Place, Bath, BA1 6AX
About Basement Flat
Basement Flat is a mid-terrace house in Bath (BA1 6AX). It has a recorded floor area of 63 m² (around 678 sq ft) and construction records dating it to before 1900. The latest certificate (January 2025) shows a D (score 65), on the cusp of jumping into the C band. When first surveyed in April 2009 the rating was E, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Very Poor to Poor and lighting went from Poor to Very Good. The recommended improvements would lift it to B (score 85), a 2-band jump. Main heating runs on electricity.
It changed hands recently, sold June 2025 for £285,000. Across 2012–2025, sale prices on this property compounded at 6.1% per year. On a £-per-square-foot basis, the last sale (£420/sq ft) was about 65.5% above the typical sold price in the postcode.
Everything you need to know about Basement Flat
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water system upgraded
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has no mains gas supply, we believe a Level 3 building survey should be considered.
From £955 · Includes VAT
Planning history
Basement Flat has no planning applications on record.
But the area is active
16 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Basement Flat has more than doubled in price since the earliest registered sale in 2012.
£302,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.1% per year over 13 years.
£285,000
Growth on file: 6.1% per year over 13 years.
Sales timeline
25 June 2025Most recent
£285,000
+19.7%over 6 years31 January 2019
£238,000
+76.3%over 6 years14 November 2012
£135,000
Median price across the last 5 sales in BA1 6AX: £332,000 (2025–2024).
Nearby sales in BA1 6AX
First Floor Flat, 15 Grosvenor Place, Bath, BA1 6AX
Sold Jun 2025
£332,00020 Grosvenor Place, Bath, BA1 6AX
Sold May 2025
£200,000Basement Flat, 15 Grosvenor Place, Bath, BA1 6AX
Sold Mar 2025
£255,0003 Grosvenor Place, Bath, BA1 6AX
Sold Dec 2024
£1,375,000Ground Floor Flat, 15 Grosvenor Place, Bath, BA1 6AX
Sold Oct 2024
£345,000
Versus other Grosvenor Place homes
Years Held for Basement Flat lags the street by a wide margin.
Price per m²
£4,524
Street avg £4,034
Floor Area
63 m²
Street avg 74 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
2.9 t/year
Street avg 3.3 t/year
Everything you need to know about Basement Flat
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

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The neighbourhood at a glance
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Balustrade — bus stop.
Closest school
0.5 km
St Saviours Junior Church School. 15 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.






