89 Monks Avenue, Barnet, EN5 1DA
About 89 Monks Avenue
89 Monks Avenue is a four-bedroom semi-detached house in Barnet (EN5 1DA). It has a recorded floor area of 149 m² (around 1604 sq ft), construction records dating it to 1976-1982 and council tax band G. The latest certificate (March 2024) shows a C (score 69), just inside the C band. When first surveyed in December 2013 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency dropped from Good to Average and roof efficiency dropped from Average to Poor. The recommended improvements would push it to B (score 81).
On energy efficiency it sits in the top 10% of properties in this postcode. Across 2003–2024, sale prices on this property compounded at 3.7% per year. On a £-per-square-foot basis, the last sale (£549/sq ft) was about 39.5% above the typical sold price in the postcode. Most recent transfer: November 2024 at £880,000. One historical planning record sits against the property in 2025.
Know exactly what you're buying at 89 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
- Utility roomYes
Outside
- Private gardenYes
- ParkingOff street
Building
- RefurbishedYes
Energy performance
89 Monks 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
Planning history
- Mar 2025Garage ConversionOutlineIn report
Conversion of the existing garage into habitable room, insertion of window to replace the garage door
- Documents
- 7 docs on file
- Reference
- 24/5675/192
We flagged 1 thing worth checking at 89 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
89 Monks Avenue has more than doubled in price since the earliest registered sale in 2003.
£911,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.7% per year over 21 years.
£880,000
Growth on file: 3.7% per year over 21 years.
Sales timeline
21 November 2024Most recent
£880,000
+114.6%over 21 years15 October 2003
£410,000
Median price across the last 5 sales in EN5 1DA: £937,500 (2025–2016).
Nearby sales in EN5 1DA
Everything we know about 89 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 co₂ emissions, 89 Monks Avenue stands well clear of the street.
Price per m²
£5,906
Street avg £4,768
Floor Area
149 m²
Street avg 174 m²
Habitable Rooms
5 rooms
Street avg 7 rooms
CO₂ Emissions
5.2 t/year
Street avg 8.7 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
0.3 km
Lyonsdown Avenue — bus stop.
Closest school
1.0 km
St Mary's CofE Primary School, East Barnet. 37 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
41.8dB