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Get started23 Byron Road is a one-bedroom mid-terrace house in Wealdstone, Harrow, Harrow (HA3 7SY). It has a recorded floor area of 74 m² (around 797 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (August 2025) shows a C (score 72). When first surveyed in January 2010 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Very Poor to Average and lighting went from Average to Good; while window efficiency dropped from Good to Poor. The recommended improvements would push it to B (score 83).
Sale prices here have outpaced Harrow HPI: 8.2% per year against 0% for the wider region. Today's modelled estimate of £433,000 is 31.2% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£414/sq ft) was about 63% above the typical sold price in the postcode. Its energy rating outperforms most of the postcode (better than 74% of similar EPCs). Last changed hands 10 years ago, in March 2016. 2 planning records sit against the property, 0 approved, 0 refused.
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
Certificate of lawful development (proposed): rear dormer over main roof and two storey rear element and installation of one rooflight in front roofslope
Sale price has grown by over 3x since 1999.
£433,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.2% per year over 17 years.
£330,000
Growth on file: 8.2% per year over 17 years.
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On co₂ emissions, 23 Byron Road stands well clear of the street.
Price per m²
£4,459
Street avg £5,007
Floor Area
74 m²
Street avg 92 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
Rail-style transport is unusually close for this postcode.
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Harrow Leisure Centre — bus stop.

Daytime· 07:00 – 23:00
52.3dB

Changes detected from historical EPC data
Loft insulation installed or upgraded to 250mm+
More low energy lighting installed
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Extension: Single storey · Rear of property
Single storey rear extension: extending 6 metres and 4 metres beyond the original rear wall 2.8 Metres maximum height 2.8 Metres high to the eaves
10 March 2016Most recent
£330,000
+78.4%over 12 years5 November 2003
£185,000
+113.9%over 4 years12 April 1999
£86,500
Median price across the last 5 sales in HA3 7SY: £460,000 (2024–2023).
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CO₂ Emissions
2.2 t/year
Street avg 4.3 t/year
HA3 7DB
Closest school
0.6 km
Elmgrove Primary School & Nursery. 40 schools nearby.
Night-time· 23:00 – 07:00
41.2dB