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21a, Gratwicke Road, Worthing, BN11 4BH

Property type
Semi-detached
Floor 2
Floor area
36 m²
388 sq ft
Energy rating
C
Score 78
Tenure
Owner Occupied
Overview

About 21a

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

21a is a semi-detached house in Worthing (BN11 4BH). It has a recorded floor area of 36 m² (around 388 sq ft) and construction records dating it to 2024. The latest certificate (April 2025) shows a C (score 78), near the top of the C band. When first surveyed in July 2010 the rating was G, the property has climbed 4 bands since. Between certificates, wall efficiency went from Poor to Good, window efficiency went from Very Poor to Very Good and hot-water efficiency went from Average to Very Good. At 36 m² this is the 13th smallest of 64 units on EPC record in the building, where floor areas span 11–185 m². The building's EPC ratings span G to B across 64 units on file.

Today's modelled estimate of £198,000 is 45.8% below the 2019 sale of £365,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. On a £-per-square-foot basis, the last sale (£942/sq ft) was about 393.7% above the typical sold price in the postcode. At 36 m² it sits well below the postcode median (67 m² across 63 EPCs), making it one of the more compact homes locally. Last sale on file: £365,000 in December 2019.

Before you decide

Everything you need to know about 21a

The true value, the hidden risks and the full sale history, in one report.

Signs of HMO activity in the areaLarger development activity nearby

Pick your report · every report is £14.99

One time fee only - money back guarantee

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

21a's carbon output is low for the local stock.

Current Certificate(1 of 3)
Apr 2025

EPC Rating

A
B
C
C78
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Very Good
Windows
Very Good
CO2 Emissions
1.0 t/year
Occupancy
Owner Occupied

Property Improvements

Changes detected from historical EPC data

Feb 2018from Jul 2010
EPC improved fromG17toE42
Heating System
Storage HeatersRoom Heaters

Heating system changed

Heating Controls
ManualProg + Stat

Heating controls upgraded for better temperature management

Hot Water
AveragePoor

Hot water efficiency decreased

Windows
SingleFull Double

Single glazing replaced with double or better glazing

Wall Insulation
UninsulatedInsulated Cavity

Cavity wall insulation installed

Roof Insulation
UninsulatedInsulated

Roof insulation improved

Low Energy Lighting
50%100%

More low energy lighting installed

Ventilation
ExtractNatural

Ventilation system changed

Apr 2025from Feb 2018
EPC improved fromE42toC78
Heating System
Room HeatersGas Boiler

Upgraded to gas central heating

Main Fuel
ElectricGas

Connected to mains gas supply

Heating Controls
Prog + StatFull Control

Heating controls upgraded for better temperature management

Hot Water
Immersion (Off-Peak)Main System

Hot water system upgraded

Windows
Full DoubleHigh Performance

High performance glazing installed

SDL Surveying

Get a survey for this property

Snagging Report

21st century2nd Floor FlatEPC CRecent new build

Because the property was built within the last two years, we believe a snagging report is more appropriate for this property than a home survey.

Planning

Planning history

Applications and permits filed against 21a, Gratwicke Road, Worthing, BN11 4BH, sourced from the PlanIt planning register.

21a has no planning applications on record.

8

But the area is active

8 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.

21a valuation sits well clear of the typical sold price in this postcode.

Current estimate

£198,000

Modelled from EPC, postcode comparables.

See how we calculated this
Last sold (2019)

£365,000

Recorded with HM Land Registry.

Sales timeline

  1. 3 December 2019Most recent

    £365,000

Median price across the last 5 sales in BN11 4BH: £230,000 (2024–2024).

On the street

Versus other Gratwicke Road homes

Four headline reads against 52 similar flats on this street, drawn from the latest EPC and Land Registry data.

EPC Rating for 21a runs comfortably ahead of the street norm.

Price per m²

£10,139

Street avg £3,341

Strongly above

Floor Area

36 m²

Street avg 56 m²

Below

CO₂ Emissions

1.0 t/year

Street avg 2.4 t/year

Strongly above

Years Held

7 years

Street avg 13 years

Below
Before you decide

Everything you need to know about 21a

The true value, the hidden risks and the full sale history, in one report.

Signs of HMO activity in the areaLarger development activity nearby

Pick your report · every report is £14.99

One time fee only - money back guarantee

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£198k

1 Beccles Court, Beccles Road

BN11 4AJ

£192k

1 Amelia Road

BN11 4GA

£205k

1 Gardiner Place

BN11 4FL

£207k

1 Hathaway Mews

BN11 4HU

£218k

1 Clifton Gardens, Clifton Road

BN11 4DZ

2 bed1 bath
£222k

1 Manor Lea, Boundary Road

BN11 4RN

2 bed1 bath
£166k

1 Elizabeth Cottages, Elizabeth Road

BN11 4EE

£246k

1 College Gardens

BN11 4QE

2 bed1 bath
Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the Worthing district page.
Full Worthing report

Rail-style transport is unusually close for this postcode.

Crime

5/mo

Steady year-on-year across the wider district.

Nearest stop

0.2 km

Thorn Road — bus stop.

Closest school

0.5 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.

Noise

Road noise across the postcode

Modelled day and night-time noise levels around BN11 4BH from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for BN11 4BH

Daytime· 07:00 – 23:00

51.8dB

Low
Night-time road noise heatmap for BN11 4BH

Night-time· 23:00 – 07:00

40.3dB

Low
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 21a, Gratwicke Road, Worthing, BN11 4BH. Each answer is also embedded as structured data for search engines.