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Get started15a Heene Court Mansions is a mid-terrace house in Worthing (BN11 3NW). It has a recorded floor area of 17 m² (around 183 sq ft), construction records dating it to before 1900 and council tax band A. At 17 m² this is the smallest 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 (September 2019) shows a D (score 56), a step below the typical UK home. When first surveyed in July 2009 the rating was F, the property has climbed 2 bands since. Between certificates, hot-water efficiency went from Very Poor to Good, lighting went from Very Poor to Very Good and main heating went from Very Poor to Good.
At 17 m² it sits well below the postcode median (69 m² across 22 EPCs), making it one of the more compact homes locally. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include subdivision, meaningful when judging how the property has evolved. On a £-per-square-foot basis, the last sale (£628/sq ft) was about 145% above the typical sold price in the postcode. Last sold in November 2017, so it's been off the market for around 9 years.
Council records show a subdivision application — the property's legal arrangement has been altered.
Continued use as a self-contained studio flat. (Third floor).
£123,000
Modelled from EPC, postcode comparables.
£115,000
Recorded with HM Land Registry.
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Price per m² for 15a Heene Court Mansions runs comfortably ahead of the street norm.
Price per m²
£6,765
Street avg £3,050
Floor Area
17 m²
Street avg 72 m²
Habitable Rooms
1 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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Changes detected from historical EPC data
Heating system upgraded to a more efficient system
Hot water system upgraded
More low energy lighting installed
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Continued use as a self-contained studio flat (second floor). (Please note: There is an error in the description relating to the (second floor), in fact the flat is on the third floor. See new planning application 07/1519/FULL).
8 November 2017Most recent
£115,000
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 3 rooms
CO₂ Emissions
1.9 t/year
Street avg 3.5 t/year
Closest school
0.8 km
St Mary's Catholic Primary School. 20 schools nearby.
Night-time· 23:00 – 07:00
38.1dB