21b, Greenhill Road, Harrow, HA1 1LD
About 21b
21b is a semi-detached house in Harrow (HA1 1LD). It has a recorded floor area of 57 m² (around 614 sq ft), construction records dating it to 1930-1949 and council tax band C. The latest certificate (December 2019) shows a C (score 69), just inside the C band. When first surveyed in October 2009 the rating was D, the property has climbed 1 band since. Between certificates, window efficiency went from Poor to Good, hot-water efficiency went from Average to Good and lighting went from Good to Very Good. At 57 m² this is the 16th smallest of 61 units on EPC record in the building, where floor areas span 29–196 m². The building's EPC ratings span E to B across 61 units on file.
Its energy rating outperforms most of the postcode (better than 78% of similar EPCs). Across 2007–2024, sale prices on this property compounded at 2.4% per year. On a £-per-square-foot basis, the last sale (£513/sq ft) was about 146.7% above the typical sold price in the postcode. Last sale on file: £315,000 in September 2024.
Know exactly what you're buying at 21b
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Windows upgraded, improving insulation
More low energy lighting installed
Planning history
21b has no planning applications on record.
Notable planning nearby
9applications of note in the surrounding area
We flagged 1 thing worth checking at 21b
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Signs of HMO activity in the area
30-day money-back guarantee
Sales history & valuation
21b valuation sits well clear of the typical sold price in this postcode.
£336,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.4% per year over 17 years.
£315,000
Growth on file: 2.4% per year over 17 years.
Sales timeline
5 September 2024Most recent
£315,000
+51.4%over 17 years12 July 2007
£208,100
Median price across the last 5 sales in HA1 1LD: £385,000 (2024–2021).
Nearby sales in HA1 1LD
Everything we know about 21b, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Signs of HMO activity in the area
Versus other Greenhill Road homes
On years held, 21b runs well behind the street norm.
Price per m²
£5,526
Street avg £3,409
Floor Area
57 m²
Street avg 60 m²
Habitable Rooms
4 rooms
Street avg 3 rooms
CO₂ Emissions
2.3 t/year
Street avg 2.8 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
28/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Greenhill Way — bus stop.
Closest school
0.3 km
Saint Jerome Church of England Bilingual School. 42 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode
Daytime· 07:00 – 23:00
56.1dB
Night-time· 23:00 – 07:00
45.4dB