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51a, Underdown Road, Southwick, Brighton, BN42 4HN

Property type
End terrace
Floor 02
Habitable rooms
3
From EPC
Floor area
64 m²
689 sq ft
Energy rating
E
Score 54
Council tax
Band A
Tenure
Owner Occupied
Overview

About 51a

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

51a is an end-of-terrace house in Southwick, Brighton, Brighton (BN42 4HN). It has a recorded floor area of 64 m² (around 689 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (September 2023) shows an E (score 54), well below the UK norm with real room to improve. Earlier certificates rated it B (August 2009); the latest reading is 3 bands lower. Between certificates, wall efficiency dropped from Good to Poor and roof efficiency dropped from Very Good to Very Poor. The recommended improvements would lift it to C (score 73), a 2-band jump.

It lags the bulk of the postcode on energy efficiency (less efficient than 73% of similar EPCs).

Before you decide

Everything you need to know about 51a

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.

Recommended upgrades on file would lift this property by multiple EPC bands.

Current Certificate(1 of 5)
Sept 2023

EPC Rating

A
B
C
D
E
E54
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Good
CO2 Emissions
4.0 t/year
Occupancy
Owner Occupied

Property Improvements

Changes detected from historical EPC data

Mar 2010from Aug 2009
EPC improved fromB81toC69
Hot Water
Very GoodGood

Hot water efficiency decreased

Low Energy Lighting
100%0%

Low energy lighting percentage decreased

Sept 2013from Mar 2010
EPC improved fromC69toE51
Mar 2020from Sept 2013
EPC improved fromE51toD60
Sept 2023from Mar 2020
EPC improved fromD60toE54
Windows
AverageGood

Window efficiency improved

Walls
Very PoorPoor

Wall insulation improved

Low Energy Lighting
0%100%

More low energy lighting installed

SDL Surveying

Get a survey for this property

Level 3 Building Survey

Victorian-era2nd Floor FlatEPC EPre-1919 buildSolid (non-cavity) walls

Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.

From £885 · Includes VAT

Planning

Planning history

Applications and permits filed against 51a, Underdown Road, Southwick, Brighton, BN42 4HN, sourced from the PlanIt planning register.

51a 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.

51a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.

Current estimate

£236,000

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.

CO₂ Emissions for 51a lags the street by a wide margin.

EPC Rating

54 (E)

Street avg 60 (D)

Below

Floor Area

64 m²

Street avg 61 m²

On par

CO₂ Emissions

4.0 t/year

Street avg 3.2 t/year

Below

Habitable Rooms

3 rooms

Street avg 3 rooms

On par
Before you decide

Everything you need to know about 51a

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
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.

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 51a, Underdown Road, Southwick, Brighton, BN42 4HN. Each answer is also embedded as structured data for search engines.