Property data
Sale history
Date Paid price Annual growth After inflation
Jul 2003 £185,000 10.4% 8.9%
Oct 2001 £156,000 na na
Internal area
114 square metres (1,227 square feet) according to latest EPC inspection
Price per internal area

This property sold for £1,622 per square metre (£151 per square foot) in Jul 2003. Indexed forward to today's value, this is roughly £3,952 per square metre (£367 per square foot) .

Date Paid price Paid £/sqm Today's value Today's value £/sqm
Jul 2003 £185,000 £1,623 £450,493 £3,952
Oct 2001 £156,000 £1,368 £476,415 £4,179

Calculated using the latest EPC internal area of 114 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 £450,493. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in Slough are now selling for between £4,360 and £5,710 per square metre (£405 and £530 per square foot). Based on an internal area of 114 m², this implies a valuation between £497,000 and £651,000. 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
3
Type
Semi-detached
Council tax band
D
Plot size
335 square metres (3,606 square feet) - map showing freehold boundary lines
Planning applications
Planning ref:
June 2018 P/17356/000
Type:
Full and householder planning application
Status:
Application approved with conditions
Address:
138, Mercian Way, Slough
Description:
Construction of a single storey rear extension.
EPC Inspections
Summary:
05 September 2013 - energy performance certificate grade E
Certificate:
View energy certificate on GOV.UK
Reason for EPC:
Rental
Tenure:
Private rental
Property type:
Semi-Detached House , has 6 habitable rooms. Estimated year built 1950 to 1966
Area:
114 sqm (1,227 square foot) total internal area
Comments:
Walls: Cavity wall, as built, no insulation (assumed). Roof: Pitched, 150 mm loft insulation. Heating: Boiler and radiators, mains gas.
Frequently asked questions

138 Mercian Way 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 £450,493.
  • Based on an internal area of 114 m² and recent prices in Slough, this implies a lower and upper quartile range from £497,000 to £651,000, using HouseMetric's implied valuation methodology.

According to HM Land Registry price paid data, 138 Mercian Way last sold for £185,000 in July 2003.

HouseMetric shows 138 Mercian Way as 114 m² (1,227 sq ft), based on the latest internal area data available for this property. The bedroom count is shown as 3 bedrooms. Bedroom numbers can come from a previous estate agency listing, an EPC record, or an estimate based on the size of the property.

The latest EPC rating shown by HouseMetric is E, from an inspection dated 05 September 2013. EPC information comes from the public Energy Performance Certificate data for England and Wales.

When we last checked, 138 Mercian Way was in council tax band D. Council Tax bands can change, so check the latest Valuation Office Agency Council Tax list.

138 Mercian Way is in postcode SL1 5LE, in Slough. You can also view HouseMetric's sold-price page for Mercian Way, SL1 5LE or analysis of the Slough 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.