20 Alston Road, Barnet, EN5 4ET
About 20 Alston Road
20 Alston Road is a three-bedroom end-of-terrace house in Barnet (EN5 4ET). It has a recorded floor area of 105 m² (around 1133 sq ft), construction records dating it to 1900-1929 and council tax band E. The latest certificate (January 2010) shows an E (score 51), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 59). The latest certificate is from January 2010, so improvements made since then won't be reflected.
It hasn't traded since June 2010, a hold of 16 years that's notably long for the area. At 105 m² the property is well over the postcode median (60 m² across 15 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. 3 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. Across 2002–2010, sale prices on this property compounded at 9.4% per year. Today's modelled estimate of £686,000 is 47.5% above the 2010 sale price.
Know exactly what you're buying at 20 Alston 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
What this property has
Inside
- Bedrooms3
Energy performance
20 Alston Road sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 20 Jan 2020
EPC Rating
Planning history
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
- May 2016ExtensionFullIn report
Extension: Side and rear of property
Single storey rear/side extension
- Agent
- Alan Cox Associates
- Documents
- 6 docs on file
- Reference
- 16/1163/HSE
- Aug 2007Loft ConversionOutlineIn report
Extension: Single storey · Rear of property
Single storey rear extension and hip to gable loft conversion with rear dormer.
Extension- Documents
- 4 docs on file
- Reference
- N13822A/07
We flagged 2 things worth checking at 20 Alston 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
- Larger development activity nearby
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Sales history & valuation
Sale price has at least doubled since 2002.
£686,000
Modelled from EPC, postcode comparables and a sale-price growth of 9.4% per year over 8 years.
£465,000
Growth on file: 9.4% per year over 8 years.
Sales timeline
3 June 2010Most recent
£465,000
+16.3%over 3 years1 May 2007
£400,000
+81.8%over 5 years8 February 2002
£220,000
Median price across the last 5 sales in EN5 4ET: £420,000 (2025–2022).
Everything we know about 20 Alston 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
- Larger development activity nearby

Versus other Alston Road homes
20 Alston Road is notably below the street on price per m².
Price per m²
£4,416
Street avg £6,411
Floor Area
105 m²
Street avg 109 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
6.5 t/year
Street avg 5.1 t/year
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The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Alston Road High Barnet — bus stop.
Closest school
0.2 km
Foulds School. 15 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
51.4dB

Night-time· 23:00 – 07:00
42.6dB