27 Third Avenue, Enfield, EN1 1BU
About 27 Third Avenue
27 Third Avenue is a three-bedroom semi-detached house in Enfield (EN1 1BU). It has a recorded floor area of 43 m² (around 463 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (October 2025) shows an E (score 42), well below the UK norm with real room to improve. Earlier certificates rated it D (January 2020); the latest reading is one band lower. Between certificates, wall efficiency went from Very Poor to Good, roof efficiency went from Very Poor to Average and lighting went from Average to Very Good; while window efficiency dropped from Average to Poor and hot-water efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 81), a 3-band jump. Main heating runs on electricity. Other recorded features include a self-contained annexe. Our model identifies extension potential, subject to local planning policy.
Held since August 2006 — that's 20 years off the open market, well above the local norm. Today's modelled estimate of £487,000 sits 102.9% above the 2006 sale of £240,000. On a £-per-square-foot basis, the last sale (£519/sq ft) was about 75% above the typical sold price in the postcode. At 43 m² it sits well below the postcode median (79 m² across 25 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 76% of similar EPCs). One historical planning record sits against the property in 2026.
What this property has
Inside
- Bedrooms3
- Utility roomYes
Outside
- Private gardenYes
- DrivewayYes
Building
- Central heatingYes
- Extension potentialPossible
Energy performance
27 Third Avenue's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Wall insulation improved
Loft insulation installed or upgraded to 250mm+
More low energy lighting installed
Heating system changed
Changed to a more efficient fuel source
Heating controls changed
Hot water system changed
Wall insulation upgraded
Floor insulation added or improved
Planning history
- Jan 2026ConversionAmendmentIn report
Use of outbuilding at rear as self-contained flat.
- Documents
- 5 docs on file
- Reference
- 25/04110/CEU
We flagged 2 things worth checking at 27 Third 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.
- Signs of HMO activity in the area
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
27 Third Avenue valuation sits well clear of the typical sold price in this postcode.
£487,000
Modelled from EPC, postcode comparables.
£240,000
Recorded with HM Land Registry.
Sales timeline
29 August 2006Most recent
£240,000
Median price across the last 5 sales in EN1 1BU: £411,000 (2024–2020).
Versus other Third Avenue homes
27 Third Avenue is notably below the street on floor area.
Price per m²
£5,581
Street avg £4,550
Floor Area
43 m²
Street avg 78 m²
Habitable Rooms
3 rooms
Street avg 4 rooms
CO₂ Emissions
1.1 t/year
Street avg 3.9 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
13/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
St. Mark's Road — bus stop.
Closest school
0.4 km
Bush Hill Park Primary School. 51 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
53.4dB

Night-time· 23:00 – 07:00
42.5dB







