21 Windsor Court, Portland Crescent, SL7 2FS

21 Windsor Court Portland Crescent is a 112 m² / 1,206 sq ft flat in Marlow. It sold for £747,500 in February 2020. Indexed forward to today's value, that sale is roughly £766k. Recent local prices imply a broad valuation context of £663k to £911k based on its internal area. The Land Registry and EPC data was last updated 1 June 2026.

Property data
Sale history
£747,500 on Feb 2020
Internal area
112 square metres (1,206 square feet) according to latest EPC inspection
Price per internal area

This property sold for £6,674 per square metre (£620 per square foot) in Feb 2020. Indexed forward to today's value, this is roughly £6,841 per square metre (£636 per square foot) .

Date Paid price Paid £/sqm Today's value Today's value £/sqm
Feb 2020 £747,500 £6,674 £766,195 £6,841

Calculated using the latest EPC internal area of 112 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 £766,195. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in Marlow are now selling for between £5,920 and £8,130 per square metre (£549 and £755 per square foot). Based on an internal area of 112 m², this implies a valuation between £663,000 and £911,000. 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
na
Type
Flat
Council tax band
na
EPC Inspections
Summary:
11 September 2017 - energy performance certificate grade B
Certificate:
View energy certificate on GOV.UK
Reason for EPC:
New dwelling
Tenure:
Unknown
Property type:
1st floor flat in an apartment block with 1 storeys Estimated year built None to None
Area:
112 sqm (1,206 square foot) total internal area
Comments:
Roof: (other premises above). Heating: Boiler and radiators, mains gas.
Frequently asked questions

21 Windsor Court Portland Crescent 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 £766,195.
  • Based on an internal area of 112 m² and recent prices in Marlow, this implies a lower and upper quartile range from £663,000 to £911,000, using HouseMetric's implied valuation methodology.

According to HM Land Registry price paid data, 21 Windsor Court Portland Crescent last sold for £747,500 in February 2020.

HouseMetric shows 21 Windsor Court Portland Crescent as 112 m² (1,206 sq ft), based on the latest internal area data available for this property.

The latest EPC rating shown by HouseMetric is B, from an inspection dated 11 September 2017. EPC information comes from the public Energy Performance Certificate data for England and Wales.

21 Windsor Court Portland Crescent is in postcode SL7 2FS, in Marlow. You can also view HouseMetric's sold-price page for Portland Crescent, SL7 2FS or analysis of the Marlow property market.

HouseMetric combines HM Land Registry price paid data, Energy Performance Certificate data and Ordnance Survey/open data. The data were last updated 1 June 2026. Figures such as indexed values and local valuation ranges are calculated estimates for context, while official records can change as public datasets are updated.

For more detail on HouseMetric data sources, update frequency and valuation methods, see the HouseMetric FAQs.