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Get started27 Belsize Road is a three-bedroom mid-terrace house in Harrow (HA3 6JL). It has a recorded floor area of 85 m² (around 915 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (March 2025) shows a C (score 73). When first surveyed in September 2014 the rating was D, the property has climbed 1 band since. Between certificates, window efficiency went from Average to Good, hot-water efficiency went from Average to Good and lighting went from Poor to Very Good. The recommended improvements would push it to B (score 88). The property has underfloor heating on record, all of which lower running costs and tend to lift resale appeal.
Sale prices here have outpaced Harrow HPI: 4.9% per year against 0.1% for the wider region. On a £-per-square-foot basis, the last sale (£607/sq ft) was about 110.6% above the typical sold price in the postcode. Most recent transfer was October 2025 at £555,000 — fresh data. At 85 m² it's 18.1% larger than the typical home in the postcode (72 m² median across 28 EPCs). Its energy rating outperforms most of the postcode (better than 71% of similar EPCs). 2 planning records sit against the property, 0 approved, 0 refused.
27 Belsize Road has 2 separate extension applications on the council record.
Extension: Single storey · Rear of property
Single storey rear extension: 6 metres deep 3.1 Metres maximum height 3 metres high to the eaves
27 Belsize Road valuation sits well clear of the typical sold price in this postcode.
£554,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.9% per year over 7 years.
£555,000
Growth on file: 4.9% per year over 7 years.
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On years held, 27 Belsize Road runs well behind the street norm.
Price per m²
£6,529
Street avg £5,104
Floor Area
85 m²
Street avg 77 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
0.2 km
Belsize Road — bus stop.

Daytime· 07:00 – 23:00
53.7dB

Changes detected from historical EPC data
Hot water system upgraded
Window efficiency improved
More low energy lighting installed
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Extension: Single storey · Rear of property
Single storey rear extension extending 3.645 Metres beyond the original rear wall 3.1 Metres maximum height 3 metres high to the eaves
8 October 2025Most recent
£555,000
+41.4%over 7 years30 July 2018
£392,500
Median price across the last 5 sales in HA3 6JL: £550,000 (2025–2021).
An AI-written breakdown of everything that matters
Detailed EPC data
Full energy ratings, history and recommendations
Related properties
Comparable homes and street-level pricing
Full planning history
Every application and decision on record
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CO₂ Emissions
2.5 t/year
Street avg 3.9 t/year
HA3 6JF
Closest school
0.5 km
Cedars Manor School. 29 schools nearby.
Night-time· 23:00 – 07:00
43.7dB