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18a, Southdown Avenue, Brighton, BN1 6EG

Extendable3 planning records

Estimated value

£467,000

  • Since the 2015 sale (£321,000)+45%
  • Against BN1 6EG's recent median (£590,000)-21%

Newest record on this page: March 2026. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation
Property type
Semi-detached
Floor 1st
Bedrooms
3
Floor area
96 m²
1033 sq ft
Energy rating
E
Score 47
Council tax
Band B
Tenure
Owner Occupied
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Valuation

About this valuation

How the figure is worked out and what it's based on. If you know this home, you can tell other visitors what you think it's worth.

Our estimate

£467,000

  • Against its 2015 sale (£321,000)+45%
  • Against BN1 6EG's recent median (£590,000)-21%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 18a is modelled from its 96 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in BN1 6EG. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.

What it's based on

  • Floor area

    96 m² from the EPC lodged in September 2013

  • Sales of this home

    2 sales recorded, the latest in 2015

  • Recent sales in BN1 6EG

    5 sales, median £590,000 (2026–2015)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: March 2026Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
Planning1 of 3 applicationsFull history, plus nearby schemes
Flood riskNot shownIncluded
Price

Sales history & valuation

Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.

18a has more than quadrupled in price since its earliest registered sale in 1999.

Sales timeline

  1. 14 January 2015Most recent

    £321,000

    +330.9%over 15 years

  2. 22 August 1999

    £74,500

Median price across the last 5 sales in BN1 6EG: £590,000 (2026–2015).

Risks

What this page doesn't show

2 potential issues have already been flagged for 18a, Southdown Avenue, Brighton, BN1 6EG. The detail, evidence and what to ask about it are in the Risks Report.
  • Signs of HMO activity in the areaIn report
  • Larger development activity nearbyIn report
  • Flood risk from rivers, sea and surface waterIn report
  • Subsidence and ground-stability signalsIn report
  • Refusals, enforcement and big schemes nearbyIn report

One time fee only - money back guarantee

Overview

About 18a

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

18a is a three-bedroom semi-detached house in Brighton (BN1 6EG). It has a recorded floor area of 96 m² (around 1033 sq ft), construction records dating it to before 1900 and council tax band B. The latest certificate (September 2013) shows an E (score 47), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 69), a 2-band jump. The latest certificate is from September 2013, so improvements made since then won't be reflected. Our model identifies extension potential, subject to local planning policy.

3 planning records sit against the property, 3 approved, 0 refused. Past consents include new windows and tree works, meaningful when judging how the property has evolved. It lags the bulk of the postcode on energy efficiency (less efficient than 71% of similar EPCs). Last sold in January 2015, so it's been off the market for around 12 years. Across 1999–2015, sale prices on this property compounded at 10% per year. Today's modelled estimate of £467,000 is 45.5% above the 2015 sale price.

Specifications

What this property has

Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.

Inside

  • Bedrooms3

Outside

  • Private gardenYes

Building

  • Heating systemElectric
  • Extension potentialPossible
Before you decide

Everything you need to know about 18a

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

Signs of HMO activity in the areaLarger development activity nearby

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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.

EPC Expired

This certificate is over 10 years old and is no longer valid.Expired 11 Sept 2023

Current Certificate
Sept 2013

EPC Rating

A
B
C
D
E
E47
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
5.9 t/year
Occupancy
Owner Occupied

Certificate validity

Expired on 11 September 2023

New assessment needed to sell or let
Planning

Planning history

Applications and permits filed against 18a, Southdown Avenue, Brighton, BN1 6EG, sourced from the PlanIt planning register.

3 applications on record at 18a, Southdown Avenue, Brighton, BN1 6EG

3decisions13documents9nearby
  1. Apr 2011
    Tree WorksTrees
    Outcome in report

    1 x Sycamore - reduce back to the boundary fence all branches that overhang 51A Rugby Road.

    Reference
    BH2011/00948
    Full record in report
  2. More recent applications — locked
  3. RenovationDecision
  4. Tree WorksDecision

Unlock 18a, Southdown Avenue, Brighton, BN1 6EG'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 9 notable nearby
  • The 13 documents, officer reports & conditions
  • What the pattern means for extending or converting here
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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

1110/mo

Falling year-on-year across the wider district.

Nearest stop

0.2 km

Springfield Road East — bus stop.

Closest school

0.1 km

Downs Junior School. 36 schools nearby.

Nearest schools

  • Downs Junior SchoolPrimary116m
  • Downs Infant SchoolPrimary204m
  • Fairlight Primary SchoolPrimary873m
  • Stanford Junior SchoolPrimary890m

Nearest stops

  • Springfield Road EastBus stop181m
  • London Road (Brighton) Rail StationRailway station194m
  • Rugby Road EastBus stop206m
  • Rugby Road EastBus stop219m

Most reported crime locally

  • Violence & Sexual Offences4,189 reports27%
  • Shoplifting2,866 reports18%
  • Anti-social Behaviour2,547 reports16%
  • Public Order1,432 reports9%

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 BN1 6EG from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for BN1 6EG

Daytime· 07:00 – 23:00

52.0dB

Low
Night-time road noise heatmap for BN1 6EG

Night-time· 23:00 – 07:00

41.5dB

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

Get a survey for this property

Level 3 Building Survey

Victorian-era1st Floor MaisonetteEPC 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 £1,020 · Includes VAT

Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£506k

1 Cleveland Road

BN1 6FF

3 bed1 bath
£520k

1 Cumberland Lodge, Cumberland Road

BN1 6ST

3 bed2 bath
£733k

1 Bates Road

BN1 6PF

3 bed3 bath
£414k

1 Clermont Court, Clermont Road

BN1 6SS

2 bed
£316k

1 Cedarwood, Curwen Place

BN1 6UH

2 bed1 bath
£303k

1 Cherrywood, Curwen Place

BN1 6UR

2 bed1 bath
£748k

1 Fircroft Close

BN1 6RY

4 bed
£291k

1 Acacia Court, Herbert Road

BN1 6PB

2 bed1 bath

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Method

How to read this page

Where every figure above comes from, how current it is and what it can't tell you.
Valuation method in detail
How the estimate is made
The estimate for 18a is modelled from its 96 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in BN1 6EG. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
Where sold prices come from
Sold prices are HM Land Registry Price Paid Data, which covers residential sales in England and Wales since 1995. 2 sales are recorded for 18a. Sales normally appear two to three months after completion, so the most recent ones take time to show up anywhere.
Reading the EPC
Energy Performance Certificates rate homes from A (most efficient) to G and last 10 years. The latest one for 18a was lodged in September 2013 at band E and expired in September 2023, so a new one is needed to sell or let. Floor area, heating and insulation details on this page come from it.
Planning records
Planning applications are collected from local authority registers through PlanIt. 3 applications are matched to 18a. Councils sometimes file applications under a different address format, and applications on neighbouring land aren't listed here; the report covers both.
Area figures
Crime is police-recorded street-level data over the last 14 months, which places each incident at an approximate point. The 36 schools and 30 stops listed are measured in a straight line from BN1 6EG, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
Council tax band
18a is in council tax band B. Bands are set by the Valuation Office Agency from historic values (1 April 1991 in England, 1 April 2003 in Wales), not today's price; the amount you pay depends on the council's rate for the band.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 18a, Southdown Avenue, Brighton, BN1 6EG. Each answer is also embedded as structured data for search engines.

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