Skip to content
UK Property Looker

57a, Underdown Road, Southwick, Brighton, BN42 4HN

Property type
Detached
Floor 1st
Habitable rooms
5
From EPC
Floor area
42 m²
450 sq ft
Energy rating
D
Score 60
Council tax
Band C
Tenure
Owner Occupied
Overview

About 57a

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

57a is a detached house in Southwick, Brighton, Brighton (BN42 4HN). It has a recorded floor area of 42 m² (around 450 sq ft), construction records dating it to 1930-1949 and council tax band C. At 42 m² this is the smallest unit on EPC record across the building (42–174 m²). The building's EPC ratings span F to C across 41 units on file. The latest certificate (November 2010) shows a D (score 60), on the cusp of jumping into the C band. The latest certificate is from November 2010, so improvements made since then won't be reflected.

At 42 m² it sits well below the postcode median (70 m² across 40 EPCs), making it one of the more compact homes locally.

Before you decide

Everything you need to know about 57a

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

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.

57a's EPC is over a decade old — improvements since won't be reflected.

EPC Expired

This certificate is over 10 years old and is no longer valid.Expired 21 Nov 2020

EPC Rating

A
B
C
D
D60
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Very Good
Windows
Very Poor
CO2 Emissions
3.0 t/year
Occupancy
Owner Occupied
SDL Surveying

Get a survey for this property

Level 2 HomeBuyer Report

Early 20th century1st Floor FlatEPC D

We've checked 10 risk factors against the available data for this property and believe a Level 2 HomeBuyer Report could be a suitable option for you.

From £545 · Includes VAT

Planning

Planning history

Applications and permits filed against 57a, Underdown Road, Southwick, Brighton, BN42 4HN, sourced from the PlanIt planning register.

57a has no planning applications on record.

2

But the area is active

2 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.

57a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.

Current estimate

£253,000

Modelled from EPC, postcode comparables.

See how we calculated this

No sales recorded with HM Land Registry

That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.

Median price across the last 5 sales in BN42 4HN: £432,000 (2025–2021).

On the street

Versus other Underdown Road homes

Four headline reads against 21 similar flats on this street, drawn from the latest EPC and Land Registry data.

On floor area, 57a runs well behind the street norm.

EPC Rating

60 (D)

Street avg 60 (D)

On par

Floor Area

42 m²

Street avg 62 m²

Strongly below

CO₂ Emissions

3.0 t/year

Street avg 3.2 t/year

On par

Habitable Rooms

5 rooms

Street avg 3 rooms

Strongly above
Before you decide

Everything you need to know about 57a

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

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.
£267k

1 Esmere House, The Green, Southwick

BN42 4DE

£230k

1 Grange Court, Southwick

BN42 4DX

£283k

1 Colebrook Road, Southwick

BN42 4AL

1 bed
£289k

1 Green Court, The Green, Southwick

BN42 4GS

2 bed
£301k

1 Amelia Close, Southwick

BN42 4AJ

2 bed2 bath
£314k

1 Green Mews, The Green, Southwick

BN42 4DZ

£195k

1 Channel View, Whiterock Place, Southwick

BN42 4AZ

£361k

1 Highdown, Southwick

BN42 4QT

Area

The neighbourhood at a glance

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

Rail-style transport is unusually close for this postcode.

Crime

4/mo

Steady year-on-year across the wider district.

Nearest stop

0.2 km

St Theresa's Church — bus stop.

Closest school

0.5 km

Shoreham Academy. 16 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 BN42 4HN from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for BN42 4HN

Daytime· 07:00 – 23:00

52.3dB

Low
Night-time road noise heatmap for BN42 4HN

Night-time· 23:00 – 07:00

42.3dB

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 57a, Underdown Road, Southwick, Brighton, BN42 4HN. Each answer is also embedded as structured data for search engines.