Flat 1, 9 Heene Terrace, Worthing, BN11 3NR
About Flat 1
Flat 1 is a mid-terrace house in Worthing (BN11 3NR). It has a recorded floor area of 20 m² (around 215 sq ft), construction records dating it to before 1900 and council tax band B. At 20 m² this is the smallest unit on EPC record across the building (20–92 m²). The building's EPC ratings span E to C across 5 units on file. The latest certificate (March 2016) shows a D (score 61), on the cusp of jumping into the C band. Earlier certificates rated it C (February 2016); the latest reading is one band lower. Between certificates, wall efficiency dropped from Poor to Very Poor and hot-water efficiency dropped from Good to Very Poor. The recommended improvements would lift it to B (score 85), a 2-band jump. Main heating runs on electricity. The latest certificate is from March 2016, so improvements made since then won't be reflected.
3 planning records sit against the property, 2 approved, 1 refused. The record references listed-building consent, which constrain future alterations. At 20 m² it sits well below the postcode median (87 m² across 54 EPCs), making it one of the more compact homes locally. Across 2006–2021, sale prices on this property compounded at 6.9% per year. On a £-per-square-foot basis, the last sale (£2,160/sq ft) was about 896.2% above the typical sold price in the postcode. Most recent transfer: July 2021 at £465,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Everything you need to know about Flat 1
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 04 Mar 2026
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating system changed
Changed to a more efficient fuel source
Heating controls changed
Hot water system changed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, has no mains gas supply, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £1,020 · Includes VAT
Planning history
Flat 1 has multiple listed-building consents on file — alterations need formal heritage approval.
3 applications on record at Flat 1, 9 Heene Terrace, Worthing, BN11 3NR
- Aug 2016RenovationHeritageOutcome in report
Listed Building Consent for retention of installation of internal stud wall with cupboards, boiler flue to rear (north) elevation and relocation of kitchen (retrospective).
ListedRetrospective- Documents
- 10 docs on file
- Reference
- AWDM/0687/16
- More recent applications — locked
- RenovationDec 2017Decision
- RenovationOct 2016Decision
Unlock Flat 1, 9 Heene Terrace, Worthing, BN11 3NR's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (3 on record)
- All 3 applications on this property in full, plus 7 notable nearby
- The 32 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Flat 1 has more than doubled in price since the earliest registered sale in 2006.
£425,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.9% per year over 15 years.
£465,000
Growth on file: 6.9% per year over 15 years.
Sales timeline
8 July 2021Most recent
£465,000
+60.3%over 4 years11 November 2016
£290,000
+65.7%over 9 years24 November 2006
£175,000
Median price across the last 5 sales in BN11 3NR: £405,000 (2025–2023).
Nearby sales in BN11 3NR
Flat 1, 15 Heene Terrace, Worthing, BN11 3NR
Sold Mar 2025
£405,000Flat 2, 17 Heene Terrace, Worthing, BN11 3NR
Sold Dec 2023
£300,000Flat 3, 10 Heene Terrace, Worthing, BN11 3NR
Sold Nov 2023
£580,00017a, Basement Flat, Heene Terrace, Worthing, BN11 3NR
Sold Mar 2023
£272,500Flat 1, 16 Heene Terrace, Worthing, BN11 3NR
Sold Jan 2023
£455,000
Versus other Heene Terrace homes
On price per m², Flat 1 stands well clear of the street.
Price per m²
£23,250
Street avg £3,318
Floor Area
20 m²
Street avg 77 m²
Habitable Rooms
1 rooms
Street avg 3 rooms
CO₂ Emissions
2.2 t/year
Street avg 3.5 t/year
Everything you need to know about Flat 1
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee

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The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Heene Terrace — bus stop.
Closest school
0.8 km
St Mary's Catholic Primary School. 20 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
49.8dB

Night-time· 23:00 – 07:00
38.0dB






