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23a, Robert Street, Brighton, BN1 4AH

1 planning record

Estimated value

£212,000

  • Since the 2011 sale (£143,000)+48%
  • Against BN1 4AH's recent median (£530,000)-60%

Newest record on this page: December 2025. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation
Property type
Detached
Floor Ground
Bedroom
1
Floor area
30 m²
319 sq ft
Energy rating
C
Score 70
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

£212,000

  • Against its 2011 sale (£143,000)+48%
  • Against BN1 4AH's recent median (£530,000)-60%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 23a is modelled from its 30 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in BN1 4AH. 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

    30 m² from the EPC lodged in May 2011

  • Sales of this home

    1 sale recorded, the latest in 2011

  • Recent sales in BN1 4AH

    5 sales, median £530,000 (2025–2022)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: December 2025Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
Planning1 applicationFull 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.

Sales timeline

  1. 14 July 2011Most recent

    £143,000

Median price across the last 5 sales in BN1 4AH: £530,000 (2025–2022).

Risks

What this page doesn't show

2 potential issues have already been flagged for 23a, Robert Street, Brighton, BN1 4AH. 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

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Overview

About 23a

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

23a is a one-bedroom detached house in Brighton (BN1 4AH). It has a recorded floor area of 30 m² (around 319 sq ft) and construction records dating it to before 1900. At 30 m² this is the smallest unit on EPC record across the building (30–99 m²). The building's EPC ratings span E to C, with this unit at the top. The latest certificate (May 2011) shows a C (score 70). When first surveyed in October 2008 the rating was E, the property has climbed 2 bands since. Between certificates, hot-water efficiency went from Very Poor to Poor, lighting went from Very Poor to Average and main heating went from Very Poor to Average. Main heating runs on to be used only when there is no heating/hot. The latest certificate is from May 2011, so improvements made since then won't be reflected.

Held since July 2011 — that's 15 years off the open market, well above the local norm. At 30 m² it sits well below the postcode median (66 m² across 29 EPCs), making it one of the more compact homes locally. One planning record on file: an extension approved in 2019. Past consents include an extension, meaningful when judging how the property has evolved. Today's modelled estimate of £212,000 is 48.3% above the 2011 sale price. On a £-per-square-foot basis, the last sale (£449/sq ft) was about 22.7% above the typical sold price in the postcode.

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

  • Bedrooms1

Outside

  • Private gardenYes

Building

  • Central heatingYes
Before you decide

Everything you need to know about 23a

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.

23a'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 05 May 2021

Current Certificate(1 of 2)
May 2011

EPC Rating

A
B
C
C70
D
E
F
G
Main Heating
Electric
Main Fuel
—
Hot Water
Poor
Windows
Very Poor
CO2 Emissions
2.5 t/year
Occupancy
Owner Occupied

Certificate validity

Expired on 5 May 2021

New assessment needed to sell or let

Property Improvements

Changes detected from historical EPC data

May 2011from Oct 2008
EPC improved fromE41toC70
Hot Water
ImmersionImmersion (Off-Peak)

Hot water system upgraded

Low Energy Lighting
0%44%

More low energy lighting installed

Planning

Planning history

Applications and permits filed against 23a, Robert Street, Brighton, BN1 4AH, sourced from the PlanIt planning register.

23a has an approved single-storey rear extension on the planning record.

1 application on record at 23a, Robert Street, Brighton, BN1 4AH

1decisions1extensions12documents27nearby
  1. Oct 2019
    ExtensionFull
    Outcome in report

    Extension: Single storey · Rear of property

    Erection of single storey rear extension and associated garden landscaping

    Documents
    12 docs on file
    Reference
    BH2019/02315
    Full record in report

Unlock 23a, Robert Street, Brighton, BN1 4AH's full planning history

You're seeing the shape of it. The report has the substance.

  • Every decision — granted, refused or withdrawn (1 on record)
  • All 1 application on this property in full, plus 27 notable nearby
  • The 12 documents, officer reports & conditions
  • What the pattern means for extending or converting here
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On the street

Versus other Robert Street homes

Four headline reads against 17 similar flats on this street, drawn from the latest EPC and Land Registry data.

Floor Area for 23a lags the street by a wide margin.

Price per m²

£4,831

Street avg £4,335

On par

Floor Area

30 m²

Street avg 50 m²

Strongly below

Habitable Rooms

2 rooms

Street avg 2 rooms

Below

CO₂ Emissions

2.5 t/year

Street avg 2.1 t/year

Below
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

0.1 km

North Laine — bus stop.

Closest school

0.4 km

Carlton Hill Primary School. 28 schools nearby.

Nearest schools

  • Carlton Hill Primary SchoolPrimary424m
  • St Paul's CofE Primary SchoolPrimary475m
  • Middle Street Primary SchoolPrimary667m
  • St Mary Magdalen Catholic Primary SchoolPrimary819m

Nearest stops

  • North LaineBus stop81m
  • Valley GardensBus stop143m
  • St Peter's ChurchBus stop217m
  • Trafalgar StreetBus stop226m

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 4AH from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for BN1 4AH

Daytime· 07:00 – 23:00

56.9dB

Moderate
Night-time road noise heatmap for BN1 4AH

Night-time· 23:00 – 07:00

46.8dB

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-eraGround Floor FlatEPC CPre-1919 buildNo mains gasSolid (non-cavity) walls

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 £885 · 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.
£396k

1 Gloucester Passage

BN1 4AS

2 bed1 bath
£397k

1 Frederick Gardens

BN1 4TB

2 bed1 bath
£496k

1 Queens Gardens

BN1 4AR

2 bed
£454k

1 Kingsbury Road

BN1 4JR

3 bed
£245k

1 Ditchling Rise

BN1 4QL

£248k

1 Carola Court, Francis Street

BN1 4ZH

£181k

1 Circus Parade, New England Road

BN1 4GW

£249k

1 Aster House, Ditchling Road

BN1 4ZL

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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 23a is modelled from its 30 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in BN1 4AH. 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. 1 sale is recorded for 23a. 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 23a was lodged in May 2011 at band C and expired in May 2021, so a new one is needed to sell or let. 2 certificates are on record, which shows how the home has changed.
Planning records
Planning applications are collected from local authority registers through PlanIt. 1 application is matched to 23a. 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 28 schools and 30 stops listed are measured in a straight line from BN1 4AH, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 23a, Robert Street, Brighton, BN1 4AH. Each answer is also embedded as structured data for search engines.

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