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Flat 3, 4 Castle Square, Brighton, BN1 1EG

6 sales on record1 planning record

Estimated value

£431,000

  • Since the 2024 sale (£400,000)+8%
  • Against BN1 1EG's recent median (£22,550)+1811%

Newest record on this page: February 2026. 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 3rd
Bedrooms
3
Bathroom
1
Floor area
70 m²
753 sq ft
Energy rating
D
Score 59
Council tax
Band A
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

£431,000

  • Against its 2024 sale (£400,000)+8%
  • Against BN1 1EG's recent median (£22,550)+1811%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for Flat 3 is modelled from its 70 m² EPC floor area, its 6 recorded sales and recent sales of comparable homes in BN1 1EG. 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

    70 m² from the EPC lodged in April 2015

  • Sales of this home

    6 sales recorded, the latest in 2024

  • Recent sales in BN1 1EG

    2 sales, median £22,550 (2026–2000)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: February 2026Latest 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.

Price for Flat 3 has grown more than fourfold since the 1996 starting point.

Sales timeline

  1. 21 October 2024Most recent

    £400,000

    +16.3%over 3 years
  2. 22 June 2021

    £344,000

    +91.1%over 14 years
  3. 29 March 2007

    £180,000

    -33.3%over 2 years
  4. 2 September 2004

    £270,000

    +409.4%over 5 years
  5. 26 April 1999

    £53,000

    +55.9%over 2 years
  6. 13 December 1996

    £34,000

Median price across the last 2 sales in BN1 1EG: £22,550 (2026–2000).

Risks

What this page doesn't show

2 potential issues have already been flagged for Flat 3, 4 Castle Square, Brighton, BN1 1EG. 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 Flat 3

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

Flat 3 is a three-bedroom detached house in Brighton (BN1 1EG). It has a recorded floor area of 70 m² (around 753 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (April 2015) shows a D (score 59), a step below the typical UK home. When first surveyed in July 2012 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, roof efficiency went from Very Poor to Average and lighting went from Very Poor to Average; while hot-water efficiency dropped from Very Good to Good. The recommended improvements would push it to C (score 75). The latest certificate is from April 2015, so improvements made since then won't be reflected.

At 70 m² the property is well over the postcode median (27 m² across 3 EPCs), placing it in the larger end of the local stock. One historical planning record sits against the property in 2016. The record references listed-building consent, which constrain future alterations. Across 1996–2024, sale prices on this property compounded at 9.3% per year. Most recent transfer: October 2024 at £400,000.

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
  • Bathrooms1

Outside

  • Communal gardenYes

Building

  • Central heatingYes
Before you decide

Everything you need to know about Flat 3

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.

Flat 3'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 29 Apr 2025

Current Certificate(1 of 2)
Apr 2015

EPC Rating

A
B
C
D
D59
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Poor
CO2 Emissions
3.7 t/year
Occupancy
Owner Occupied

Certificate validity

Expired on 29 April 2025

New assessment needed to sell or let

Property Improvements

Changes detected from historical EPC data

Apr 2015from Jul 2012
EPC improved fromE51toD59
Hot Water
Very GoodGood

Hot water efficiency decreased

Walls
Very PoorPoor

Wall insulation improved

Roof Insulation
UninsulatedInsulated

Roof insulation improved

Low Energy Lighting
0%29%

More low energy lighting installed

Planning

Planning history

Applications and permits filed against Flat 3, 4 Castle Square, Brighton, BN1 1EG, sourced from the PlanIt planning register.

Flat 3 has a listed-building consent on record — alterations to a listed property are tightly controlled.

1 application on record at Flat 3, 4 Castle Square, Brighton, BN1 1EG

0decisions25nearby
Flagged:Listed building
  1. Dec 2016
    Heritage
    Outcome in report

    listed building consent

    Council
    Valley Gardens
    Listed
    Reference
    BH2016/06594
    Full record in report

Unlock Flat 3, 4 Castle Square, Brighton, BN1 1EG's full planning history

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

  • Every decision — granted, refused or withdrawn
  • All 1 application on this property in full, plus 25 notable nearby
  • What the pattern means for extending or converting here
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On the street

Versus other Castle Square homes

Four headline reads against 3 similar flats on this street, drawn from the latest EPC and Land Registry data.

Flat 3 outperforms the street on floor area by a wide margin.

EPC Rating

59 (D)

Street avg 53 (E)

Above

Floor Area

70 m²

Street avg 39 m²

Strongly above

CO₂ Emissions

3.7 t/year

Street avg 3.7 t/year

On par

Habitable Rooms

4 rooms

Street avg 2 rooms

Strongly above
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.

Crime

1110/mo

Falling year-on-year across the wider district.

Nearest stop

0.0 km

North Street — bus stop.

Closest school

0.3 km

Middle Street Primary School. 24 schools nearby.

Nearest schools

  • Middle Street Primary SchoolPrimary336m
  • Carlton Hill Primary SchoolPrimary556m
  • St Paul's CofE Primary SchoolPrimary672m
  • Queen's Park Primary SchoolPrimary841m

Nearest stops

  • North StreetBus stop17m
  • Royal PavilionBus stop106m
  • North StreetBus stop116m
  • Old Steine southBus stop133m

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 1EG from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for BN1 1EG

Daytime· 07:00 – 23:00

57.8dB

Moderate
Night-time road noise heatmap for BN1 1EG

Night-time· 23:00 – 07:00

48.0dB

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-era3rd Floor MaisonetteEPC DPre-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

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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.
How the estimate is made
The estimate for Flat 3 is modelled from its 70 m² EPC floor area, its 6 recorded sales and recent sales of comparable homes in BN1 1EG. 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. 6 sales are recorded for Flat 3. 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 Flat 3 was lodged in April 2015 at band D and expired in April 2025, 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 Flat 3. 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 24 schools and 30 stops listed are measured in a straight line from BN1 1EG, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
Council tax band
Flat 3 is in council tax band A. 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 Flat 3, 4 Castle Square, Brighton, BN1 1EG. Each answer is also embedded as structured data for search engines.

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