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Get started13 Castle Street is an end-of-terrace house in Slough (SL1 2AX). It has a recorded floor area of 89 m² (around 958 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (May 2022) shows a D (score 59), a step below the typical UK home. The rating has held steady at D across 2 certificates since October 2011. Between certificates, roof efficiency dropped from Poor to Very Poor. The recommended improvements would push it to C (score 80).
Sale prices here have outpaced Slough HPI: 8% per year against 0% for the wider region. Today's modelled estimate of £354,000 is 38.3% above the 2015 sale price. On a £-per-square-foot basis, the last sale (£267/sq ft) was about 20.6% above the typical sold price in the postcode. Last changed hands 11 years ago, in June 2015. Across the public record there are 7 sales, relatively high churn for a single property. 2 planning records sit against the property, 1 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved.
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
CERTIFICATE OF LAWFULNESS FOR THE ERECTION OF A SIDE AND A REAR FACING DORMER TO FACILITATE A LOFT CONVERSION AND THE INSTALLATION OF TWO ROOF LIGHTS IN THE FRONT ROOF SLOPE
Price for 13 Castle Street has grown more than fourfold since the 1997 starting point.
£354,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.0% per year over 18 years.
£256,000
Growth on file: 8.0% per year over 18 years.
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13 Castle Street is notably below the street on co₂ emissions.
Price per m²
£2,876
Street avg £2,680
Floor Area
89 m²
Street avg 85 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
Rail-style transport is unusually close for this postcode.
Crime
18/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Red Cow Roundabout — bus stop.

Daytime· 07:00 – 23:00
57.3dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
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Extension: Single storey · Side of property
ERECTION OF A SINGLE STOREY SIDE EXTENSION WITH A PITCHED ROOF
18 June 2015Most recent
£256,000
+21.9%over 10 years22 April 2005
£209,950
+2.4%22 December 2004
£205,000
+7.9%over 2 years6 December 2002
£189,950
+15.1%over 1 year31 October 2001
£165,000
+22.2%over 11 months8 December 2000
£135,000
+110.9%over 3 years8 July 1997
£64,000
Median price across the last 5 sales in SL1 2AX: £315,000 (2023–2010).
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Comparable homes and street-level pricing
Full planning history
Every application and decision on record
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CO₂ Emissions
4.5 t/year
Street avg 4.0 t/year
SL1 2AX
Closest school
0.3 km
St Mary's Church of England Primary School. 32 schools nearby.
Night-time· 23:00 – 07:00
49.9dB