18 Sparkbridge Road, Harrow, HA1 1TJ
About 18 Sparkbridge Road
18 Sparkbridge Road is a semi-detached house in Harrow (HA1 1TJ). It has a recorded floor area of 96 m² (around 1033 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (January 2018) shows a D (score 61), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since June 2009. Between certificates, roof efficiency went from Average to Good, window efficiency went from Average to Good and lighting went from Good to Very Good; while wall efficiency dropped from Good to Very Poor. The recommended improvements would lift it to B (score 84), a 2-band jump.
Most recent transfer: January 2019 at £525,000. Across the public record there are 6 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. Across 1996–2019, sale prices on this property compounded at 8.3% per year. Today's modelled estimate of £596,000 is 13.5% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£508/sq ft) was about 67.6% above the typical sold price in the postcode.
Know exactly what you're buying at 18 Sparkbridge Road
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
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Window efficiency improved
Loft insulation upgraded to recommended levels
More low energy lighting installed
Planning history
18 Sparkbridge Road has an approved single-storey rear extension on the planning record.
- Feb 2026ExtensionOutlineIn report
Certificate of Lawful Development (Proposed): Alterations and extension to roof to form end gable; rear dormer with Juliette balcony; two roof lights in front roof slope; window in end gable
- Reference
- PL/0414/26
- Jun 2019ExtensionOutlineIn report
Extension: Single storey · Rear of property
Single Storey Rear Extension: 6 metres deep, 3 metres maximum height, 2.95 metres high to the eaves
- Documents
- 6 docs on file
- Reference
- P/2022/19/PRIOR
We flagged 1 thing worth checking at 18 Sparkbridge Road
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
18 Sparkbridge Road has more than quadrupled in price since its earliest registered sale in 1996.
£596,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.3% per year over 22 years.
£525,000
Growth on file: 8.3% per year over 22 years.
Sales timeline
22 January 2019Most recent
£525,000
+75.0%over 8 years25 February 2010
£299,950
+67.2%over 9 years26 January 2001
£179,389
+2.5%over 9 months24 April 2000
£174,950
+26.8%over 1 year6 August 1998
£138,000
+53.8%over 1 year1 November 1996
£89,750
Median price across the last 5 sales in HA1 1TJ: £600,000 (2023–2018).
Nearby sales in HA1 1TJ
Everything we know about 18 Sparkbridge Road, 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 Sparkbridge Road homes
On price per m², 18 Sparkbridge Road stands well clear of the street.
Price per m²
£5,469
Street avg £3,919
Floor Area
96 m²
Street avg 112 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
4.4 t/year
Street avg 5.0 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
0.3 km
Harrow Civic Centre / Harrow Mosque — bus stop.
Closest school
0.3 km
Marlborough Primary School. 38 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
53.7dB

Night-time· 23:00 – 07:00
42.3dB