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Green Diamond, Penthouse 41, Bartholomew Square, Brighton, BN1 1JS

EPC B

Estimated value

£1,458,000

  • Since the 2022 sale (£1,245,000)+17%
  • Against BN1 1JS's recent median (£300,000)+386%

Newest record on this page: November 2022. 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 3
Floor area
185 m²
1991 sq ft
Energy rating
B
Score 82
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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

£1,458,000

  • Against its 2022 sale (£1,245,000)+17%
  • Against BN1 1JS's recent median (£300,000)+386%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for Green Diamond is modelled from its 185 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in BN1 1JS. 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

    185 m² from the EPC lodged in March 2021

  • Sales of this home

    2 sales recorded, the latest in 2022

  • Recent sales in BN1 1JS

    2 sales, median £300,000 (2016–2016)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: November 2022Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
PlanningNone on this homeFull 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.

Green Diamond has more than quadrupled in price since its earliest registered sale in 2020.

Sales timeline

  1. 1 November 2022Most recent

    £1,245,000

    +398.0%over 2 years
  2. 17 January 2020

    £250,000

Median price across the last 2 sales in BN1 1JS: £300,000 (2016–2016).

Risks

What this page doesn't show

2 potential issues have already been flagged for Green Diamond, Penthouse 41, Bartholomew Square, Brighton, BN1 1JS. 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 Green Diamond

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

Green Diamond is a semi-detached house in Brighton (BN1 1JS). It has a recorded floor area of 185 m² (around 1991 sq ft) and construction records dating it to 2020. At 185 m² this is the largest unit on EPC record across Green Diamond (26–185 m²). The building's EPC ratings span D to B, with this unit at the top. The latest certificate (March 2021) returns a B (score 82), comfortably above the UK average. Main heating runs on electricity: electricity, unspecified tariff.

At 185 m² the property is well over the postcode median (48 m² across 39 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the top 10% of properties in this postcode. Across 2020–2022, sale prices on this property compounded at 77.8% per year. Today's modelled estimate of £1,458,000 is 17.1% above the 2022 sale price. Last sale on file: £1,245,000 in November 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.

Before you decide

Everything you need to know about Green Diamond

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.

Green Diamond ranks among the most efficient homes in the postcode for energy use.

Current Certificate
Mar 2021

EPC Rating

A
B
B82
C
D
E
F
G
Main Heating
Heat Pump
Main Fuel
Electric
Hot Water
Poor
Windows
Very Good
CO2 Emissions
2.6 t/year
Occupancy
—

Certificate validity

Valid until 29 March 2031

4 years remaining
Planning

Planning history

Applications and permits filed against Green Diamond, Penthouse 41, Bartholomew Square, Brighton, BN1 1JS, sourced from the PlanIt planning register.

Green Diamond has no planning applications on record.

25

But the area is active

25 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.

On the street

Versus other Bartholomew Square homes

Three headline reads against 39 similar flats on this street, drawn from the latest EPC and Land Registry data.

Floor Area for Green Diamond runs comfortably ahead of the street norm.

EPC Rating

82 (B)

Street avg 75 (C)

Strongly above

Floor Area

185 m²

Street avg 47 m²

Strongly above

CO₂ Emissions

2.6 t/year

Street avg 0.5 t/year

Strongly 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.

Crime

1110/mo

Falling year-on-year across the wider district.

Nearest stop

0.1 km

Pool Valley Coach Station — bus station.

Closest school

0.2 km

Middle Street Primary School. 22 schools nearby.

Nearest schools

  • Middle Street Primary SchoolPrimary233m
  • St Paul's CofE Primary SchoolPrimary701m
  • Carlton Hill Primary SchoolPrimary733m
  • St Mary Magdalen Catholic Primary SchoolPrimary842m

Nearest stops

  • Pool Valley Coach StationBus station150m
  • Ship StreetBus stop153m
  • Palace PierBus stop160m
  • North StreetBus stop195m

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

Daytime· 07:00 – 23:00

58.5dB

Moderate
Night-time road noise heatmap for BN1 1JS

Night-time· 23:00 – 07:00

49.0dB

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 2 HomeBuyer Report

21st century3rd Floor FlatEPC B

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.

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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 Green Diamond is modelled from its 185 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in BN1 1JS. 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 Green Diamond. 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 Green Diamond was lodged in March 2021 at band B and is valid until March 2031. Floor area, heating and insulation details on this page come from it.
Planning records
Planning applications are collected from local authority registers through PlanIt. None is matched to Green Diamond. 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 22 schools and 30 stops listed are measured in a straight line from BN1 1JS, 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 Green Diamond, Penthouse 41, Bartholomew Square, Brighton, BN1 1JS. Each answer is also embedded as structured data for search engines.

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