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Get started23 Thorndon Avenue is a three-bedroom detached house in West Horndon, Brentwood, Brentwood (CM13 3TT). It has a recorded floor area of 74 m² (around 797 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (July 2017) shows an E (score 54), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 87), a 3-band jump. Records show the property has been extended at some point in its history. The home occupies a cul-de-sac position.
At 74 m² it sits well below the postcode median (106 m² across 33 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 73% of similar EPCs). 3 planning records sit against the property, 3 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. Today's modelled estimate of £508,000 is 37.3% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£465/sq ft) was about 63.4% above the typical sold price in the postcode. On the market in November 2017 and unlisted since — roughly 9 years.
Recommended upgrades on file would lift this property by multiple EPC bands.
23 Thorndon Avenue has an approved single-storey rear extension on the planning record.
Prior Notification for the construction of new upper storey to existing dwelling.
23 Thorndon Avenue valuation sits well clear of the typical sold price in this postcode.
£508,000
Modelled from EPC, postcode comparables.
£370,000
Recorded with HM Land Registry.
Price per m² for 23 Thorndon Avenue runs comfortably ahead of the street norm.
Price per m²
£5,000
Street avg £4,001
Floor Area
74 m²
Street avg 118 m²
Habitable Rooms
4 rooms
Rail-style transport is unusually close for this postcode.
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.7 km
Clavering Gardens — bus stop.

Daytime· 07:00 – 23:00
55.5dB

Extension: Single storey · Rear of property
Single storey rear extension. The proposed extension would extend 6m beyond the rear wall of the original dwelling, the maximum height of the proposed extension would be 3.3m and the proposed eaves height would be 3m
1 more application for this property
Join to see all planning history.
3 November 2017Most recent
£370,000
Median price across the last 5 sales in CM13 3TT: £660,000 (2025–2022).
60 Thorndon Avenue West Horndon Brentwood
Sold Jun 2025
7 Thorndon Avenue West Horndon Brentwood
Sold Oct 2024
54 Thorndon Avenue West Horndon Brentwood
Sold Aug 2024
5 Thorndon Avenue West Horndon Brentwood
Sold Aug 2024
40 Thorndon Avenue West Horndon Brentwood
Sold Sept 2022
Street avg 5 rooms
CO₂ Emissions
4.6 t/year
Street avg 5.3 t/year
CM13 3ND
Closest school
0.4 km
West Horndon Primary School. 2 schools nearby.
Night-time· 23:00 – 07:00
49.5dB
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