11 Brett Road, Barnet, EN5 3BL
About 11 Brett Road
11 Brett Road is a three-bedroom semi-detached house in Barnet (EN5 3BL). It has a recorded floor area of 88 m² (around 947 sq ft), construction records dating it to 1950-1966 and council tax band D. The latest certificate (April 2025) shows a D (score 62), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since February 2009. Between certificates, window efficiency went from Average to Good and lighting went from Very Poor to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would push it to C (score 77). Records show the property has been extended at some point in its history. The home occupies a cul-de-sac position.
Most recent transfer was July 2025 at £575,000 — fresh data. One planning record on file: an extension approved in 2023. Past consents include an extension and partial demolition, meaningful when judging how the property has evolved. At 88 m² it's 17.3% larger than the typical home in the postcode (75 m² median across 11 EPCs). Across 1999–2025, sale prices on this property compounded at 7.2% per year. On a £-per-square-foot basis, the last sale (£607/sq ft) was about 50.8% above the typical sold price in the postcode.
Know exactly what you're buying at 11 Brett Road
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms3
- Bathrooms2
Outside
- ParkingOff street
- Cul-de-sacYes
Building
- Previously extendedYes
- RefurbishedYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
Window efficiency improved
More low energy lighting installed
Planning history
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
- Nov 2023DemolitionFullIn report
Extension: Single storey · Rear of property
Single storey rear extension with 2no. rooflights following demolition of the existing conservatory
- Agent
- M Gorham Architects
Extension- Documents
- 6 docs on file
- Reference
- 23/4121/HSE
What's in 11 Brett Road, Barnet, EN5 3BL's planning history?
Refusals, disputes and full decisions on this property and nearby, in the report.
Sales history & valuation
Price for 11 Brett Road has grown more than fourfold since the 1999 starting point.
£590,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.2% per year over 26 years.
£575,000
Growth on file: 7.2% per year over 26 years.
Sales timeline
30 July 2025Most recent
£575,000
+50.3%over 10 years27 February 2015
£382,500
+34.2%over 5 years9 July 2009
£285,000
+28.4%over 6 years19 June 2003
£222,000
+136.2%over 4 years15 June 1999
£94,000
Median price across the last 5 sales in EN5 3BL: £270,000 (2021–2006).
Everything we know about 11 Brett Road, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

Versus other Brett Road homes
Floor Area for 11 Brett Road runs comfortably ahead of the street norm.
EPC Rating
62 (D)
Street avg 60 (D)
Floor Area
88 m²
Street avg 75 m²
CO₂ Emissions
3.7 t/year
Street avg 3.7 t/year
Habitable Rooms
5 rooms
Street avg 4 rooms
Similar properties nearby
The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Aitken Road — bus stop.
Closest school
0.3 km
Whitings Hill Primary School. 17 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
47.8dB

Night-time· 23:00 – 07:00
38.5dB