6 Gisbey House, Union Lane, TW7 6GH
6 Gisbey House Union Lane is a 48 m² / 517 sq ft flat in Isleworth. It sold for £267,000 in May 2026. Indexed forward to today's value, that sale is roughly £267k. Recent local prices imply a broad valuation context of £267k to £340k based on its internal area. The Land Registry and EPC data was last updated 8 October 2026.
- Sale history
-
Date Paid price Annual growth After inflation May 2026 £267,000 0.1% -3.9% Oct 2019 £265,000 4.0% 2.0% Jun 2010 New build New £183,950 na na - Floor plan
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Archived estate agent floor plan for 6 Gisbey House, Union Lane.
- Internal area
- 48 square metres (517 square feet) according to latest EPC inspection
- Price per internal area
-
This property sold for £5,562 per square metre (£517 per square foot) in May 2026. Indexed forward to today's value, this is roughly £5,562 per square metre (£517 per square foot) .
Date Paid price Paid £/sqm Today's value Today's value £/sqm May 2026 £267,000 £5,562 £267,000 £5,562 Oct 2019 £265,000 £5,521 £260,449 £5,426 Jun 2010 £183,950 £3,832 £212,932 £4,436 Calculated using the latest EPC internal area of 48 m². Earlier sale dates may not have had the same measured area available.
- Valuation
- The most recent sale price indexed forward to today's value is £267,000. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in Isleworth are now selling for between £5,570 and £7,090 per square metre (£517 and £658 per square foot). Based on an internal area of 48 m², this implies a valuation between £267,000 and £340,000. Treat this as context only. For a valuation using hand-picked comparable sales, use the Advanced search tool — create a shortlist of similar condition homes, then export a valuation report.
- Bedrooms
- 1
- Type
- Flat
- Council tax band
- C
- Summary:
- 16 October 2025 - energy performance certificate grade B
- Certificate:
- View energy certificate on GOV.UK
- Reason for EPC:
- marketed sale
- Tenure:
- Owner-occupied
- Property type:
- 1st floor flat in an apartment block with 1 storeys , has 2 habitable rooms. Estimated year built 2012 to 2021
- Area:
- 48 sqm (517 square foot) total internal area
- Comments:
- Walls: Cavity wall, as built, insulated (assumed). Roof: (another dwelling above). Heating: Community scheme.
- Summary:
- 04 March 2010 - energy performance certificate grade B
- Certificate:
- View energy certificate on GOV.UK
- Reason for EPC:
- new dwelling
- Tenure:
- Unknown
- Property type:
- None Estimated year built None to None
- Area:
- 49 sqm (527 square foot) total internal area
- Comments:
- Roof: (another dwelling above). Heating: Community scheme.
6 Gisbey House Union Lane is worth whatever price a willing buyer and seller agree upon. However, the following can provide useful context.
- HouseMetric estimates the most recent sale price indexed forward to today's value is £267,000.
- Based on an internal area of 48 m² and recent prices in Isleworth, this implies a lower and upper quartile range from £267,000 to £340,000, using HouseMetric's implied valuation methodology.
For more detail on HouseMetric data sources, update frequency and valuation methods, see the HouseMetric FAQs.