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Get started12a Heene Court Mansions is a mid-terrace house in Worthing (BN11 3NW). It has a recorded floor area of 161 m² (around 1733 sq ft), construction records dating it to before 1900 and council tax band C. At 161 m² this is the largest unit on EPC record across the building (17–161 m²). The building's EPC ratings span E to C across 23 units on file. The latest certificate (November 2013) shows a D (score 63), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 71). The latest certificate is from November 2013, so improvements made since then won't be reflected.
At 161 m² the property is well over the postcode median (60 m² across 22 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £503,000 sits 89.8% above the 2016 sale of £265,000. On a £-per-square-foot basis, the last sale (£153/sq ft) was about 42.6% below the postcode norm. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include subdivision, meaningful when judging how the property has evolved. The record references listed-building consent, which constrain future alterations. Last changed hands 10 years ago, in March 2016.
12a Heene Court Mansions's carbon output runs well above what efficient homes in the postcode produce.
This certificate is over 10 years old and is no longer valid.Expired 09 Nov 2023
Council records show a subdivision application — the property's legal arrangement has been altered.
Application for Listed Building Consent for works to facilitate the conversion of 3 bedroom flat to form 1 x 2 bedroom flat and 1 x 1 bedroom flat including replacement rear PVCu window in timber sliding sash.
12a Heene Court Mansions valuation sits well clear of the typical sold price in this postcode.
£503,000
Modelled from EPC, postcode comparables.
£265,000
Recorded with HM Land Registry.
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Floor Area for 12a Heene Court Mansions runs comfortably ahead of the street norm.
Price per m²
£1,646
Street avg £3,306
Floor Area
161 m²
Street avg 65 m²
Habitable Rooms
4 rooms
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Heene Terrace — bus stop.

Daytime· 07:00 – 23:00
50.0dB

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Conversion of 3 bedroom flat to form 1 x 2 bedroom flat and 1 x 1 bedroom flat.
24 March 2016Most recent
£265,000
Median price across the last 5 sales in BN11 3NW: £195,000 (2025–2020).
12 Heene Court Mansions Heene Terrace Worthing
Sold Aug 2025
8 Heene Court Mansions Heene Terrace Worthing
Sold Mar 2023
14a Heene Court Mansions Heene Terrace Worthing
Sold Dec 2022
9a Heene Court Mansions Heene Terrace Worthing
Sold Nov 2020
10a Heene Court Mansions Heene Terrace Worthing
Sold Mar 2018
Detailed EPC data
Full energy ratings, history and recommendations
Full planning history
Every application and decision on record
Plus much more
Comparable sales, transport, crime, schools and more

Street avg 2 rooms
CO₂ Emissions
6.1 t/year
Street avg 3.3 t/year
Closest school
0.8 km
St Mary's Catholic Primary School. 20 schools nearby.
Night-time· 23:00 – 07:00
38.1dB