17 Lyonsdown Avenue, New Barnet, Barnet, EN5 1DU
About 17 Lyonsdown Avenue
17 Lyonsdown Avenue is a semi-detached house in New Barnet, Barnet, Barnet (EN5 1DU). It has a recorded floor area of 160 m² (around 1722 sq ft), construction records dating it to 1930-1949 and council tax band G. The latest certificate (November 2023) shows a C (score 74). When first surveyed in March 2011 the rating was F, the property has climbed 3 bands since. Between certificates, roof efficiency went from Poor to Good, window efficiency went from Very Poor to Average and lighting went from Good to Very Good. The recommended improvements would push it to B (score 82).
On energy efficiency it sits in the top 10% of properties in this postcode. Across 1998–2011, sale prices on this property compounded at 7.9% per year. Today's modelled estimate of £1,094,000 is 43.9% above the 2011 sale price. On a £-per-square-foot basis, the last sale (£441/sq ft) was about 17.9% below the postcode norm. On the market in October 2011 and unlisted since — roughly 15 years. One historical planning record sits against the property in 2012.
Know exactly what you're buying at 17 Lyonsdown Avenue
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
17 Lyonsdown Avenue ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Windows upgraded, improving insulation
Roof insulation improved
More low energy lighting installed
Solar PV panels (20 kWp) installed
Planning history
- Aug 2012ExtensionOutlineIn report
Extension: Single storey · Side and rear of property
Single storey side/rear extension with a roof lantern.
- Agent
- Spheron Architects
- Documents
- 16 docs on file
- Reference
- B/02249/12
We flagged 1 thing worth checking at 17 Lyonsdown Avenue
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.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
17 Lyonsdown Avenue has more than doubled in price since the earliest registered sale in 1998.
£1,094,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.9% per year over 13 years.
£760,000
Growth on file: 7.9% per year over 13 years.
Sales timeline
27 October 2011Most recent
£760,000
+173.9%over 13 years26 July 1998
£277,500
Median price across the last 5 sales in EN5 1DU: £1,150,000 (2023–2019).
Nearby sales in EN5 1DU
27 Lyonsdown Avenue, New Barnet, Barnet, EN5 1DU
Sold Aug 2023
£1,750,00026 Lyonsdown Avenue, New Barnet, Barnet, EN5 1DU
Sold Oct 2022
£1,050,0004 Lyonsdown Avenue, New Barnet, Barnet, EN5 1DU
Sold Apr 2022
£896,00018 Lyonsdown Avenue, New Barnet, Barnet, EN5 1DU
Sold Jan 2022
£1,150,00021 Lyonsdown Avenue, New Barnet, Barnet, EN5 1DU
Sold Nov 2019
£1,300,000
Everything we know about 17 Lyonsdown Avenue, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby

Versus other Lyonsdown Avenue homes
EPC Rating for 17 Lyonsdown Avenue runs comfortably ahead of the street norm.
Price per m²
£4,750
Street avg £6,684
Floor Area
160 m²
Street avg 177 m²
Habitable Rooms
7 rooms
Street avg 7 rooms
CO₂ Emissions
4.9 t/year
Street avg 10.1 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Lyonsdown Avenue — bus stop.
Closest school
1.1 km
St Mary's CofE Primary School, East Barnet. 33 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
52.1dB

Night-time· 23:00 – 07:00
41.7dB