11 Monks Avenue, Barnet, EN5 1BZ
About 11 Monks Avenue
11 Monks Avenue is a four-bedroom semi-detached house in Barnet (EN5 1BZ). It has a recorded floor area of 142 m² (around 1528 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (August 2024) shows a D (score 68), on the cusp of jumping into the C band. When first surveyed in July 2010 the rating was E, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Average to Good, lighting went from Poor to Very Good and main heating went from Average to Good; while roof efficiency dropped from Poor to Very Poor. The recommended improvements would lift it to B (score 83), a 2-band jump. The property has an EV charger on record, all of which lower running costs and tend to lift resale appeal.
At 142 m² the property is well over the postcode median (109 m² across 10 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £862,000 sits 121% above the 2011 sale of £390,000. On a £-per-square-foot basis, the last sale (£255/sq ft) was about 43.2% below the postcode norm. 2 planning records sit against the property, 1 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. Last sold in October 2011, so it's been off the market for around 15 years.
Know exactly what you're buying at 11 Monks 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
What this property has
Inside
- Bedrooms4
- Bathrooms2
- Dining roomYes
- EnsuiteYes
- StudyYes
Outside
- Private gardenYes
Building
- EV chargerYes
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency improved
Windows upgraded, improving insulation
Loft insulation upgraded to recommended levels
More low energy lighting installed
Planning history
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
- Jan 2012ExtensionFullIn report
Extension: Single storey · Rear of property
Single storey rear extension and a patio at the rear.
- Agent
- Alexander Elliott Ltd
- Documents
- 5 docs on file
- Reference
- B/04661/11
- Dec 2011Loft ConversionOutlineIn report
Roof extenion including hip to gable end and rear dormer window and 2no. rooflights to the front elevation to facilitate a loft conversion.
- Agent
- Alexander Elliott Ltd
- Documents
- 5 docs on file
- Reference
- B/04657/11
We flagged 1 thing worth checking at 11 Monks 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
11 Monks Avenue valuation sits well clear of the typical sold price in this postcode.
£862,000
Modelled from EPC, postcode comparables.
£390,000
Recorded with HM Land Registry.
Sales timeline
26 October 2011Most recent
£390,000
Median price across the last 5 sales in EN5 1BZ: £810,000 (2025–2017).
Everything we know about 11 Monks 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 Monks Avenue homes
On price per m², 11 Monks Avenue runs well behind the street norm.
Price per m²
£2,746
Street avg £5,426
Floor Area
142 m²
Street avg 120 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
5.0 t/year
Street avg 5.9 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
Monks Avenue — bus stop.
Closest school
0.9 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