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12 Kings Tower, Marconi Plaza, Chelmsford, CM1 1GS

Estimated value

£263,000

  • Since the 2008 sale (£175,000)+50%
  • Against CM1 1GS's recent median (£230,000)+14%

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 02
Bedrooms
2
Bathroom
1
Floor area
73 m²
786 sq ft
Energy rating
D
Score 61
Council tax
Band E
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

£263,000

  • Against its 2008 sale (£175,000)+50%
  • Against CM1 1GS's recent median (£230,000)+14%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 12 Kings Tower is modelled from its 73 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in CM1 1GS. 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

    73 m² from the EPC lodged in September 2025

  • Sales of this home

    1 sale recorded, the latest in 2008

  • Recent sales in CM1 1GS

    5 sales, median £230,000 (2026–2020)

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
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.

The latest sale landed at the peak of the pre-credit-crunch market — a high-water reference point.

Sales timeline

  1. 19 December 2008Most recent

    £175,000

Median price across the last 5 sales in CM1 1GS: £230,000 (2026–2020).

Risks

What this page doesn't show

Nothing is flagged from the data on this page, but these checks are only run in the report. The detail, evidence and what to ask about it are in the Risks 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 12 Kings Tower

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

12 Kings Tower is a two-bedroom semi-detached house in Chelmsford (CM1 1GS). It has a recorded floor area of 73 m² (around 786 sq ft), construction records dating it to 2007-2011 and council tax band E. At 73 m² this is the 49th smallest of 71 units on EPC record in the building, where floor areas span 36–202 m². The building's EPC ratings span D to B, with this unit at the bottom. On EPC score it ranks last in the building (61 versus a best of 86). Other recorded features include a balcony. The latest certificate (September 2025) shows a D (score 61), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since July 2020. Between certificates, hot-water efficiency went from Very Poor to Average and main heating went from Very Poor to Poor; while lighting dropped from Very Good to Good. The recommended improvements would push it to C (score 74). Main heating runs on electricity.

Held since December 2008 — that's 18 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £263,000 sits 50.3% above the 2008 sale of £175,000. On a £-per-square-foot basis, the last sale (£223/sq ft) was about 33.3% below the postcode norm.

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

  • Bedrooms2
  • Bathrooms1
  • Open-plan layoutYes
  • Dining roomYes

Outside

  • ParkingAllocated
  • BalconyYes

Building

  • RefurbishedYes
Before you decide

Everything you need to know about 12 Kings Tower

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

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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.

12 Kings Tower sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.

Current Certificate(1 of 2)
Sept 2025

EPC Rating

A
B
C
D
D61
E
F
G
Main Heating
Electric
Main Fuel
Electric
Hot Water
Average
Windows
Average
CO2 Emissions
1.1 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 8 September 2035

8 years remaining

Property Improvements

Changes detected from historical EPC data

Sept 2025from Jul 2020
Heating Controls
ThermostatProg + Stat

Heating controls upgraded for better temperature management

Hot Water
ImmersionImmersion (Off-Peak)

Hot water system upgraded

Planning

Planning history

Applications and permits filed against 12 Kings Tower, Marconi Plaza, Chelmsford, CM1 1GS, sourced from the PlanIt planning register.

12 Kings Tower has no planning applications on record.

3

But the area is active

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

On the street

Versus other Marconi Plaza homes

Four headline reads against 70 similar flats on this street, drawn from the latest EPC and Land Registry data.

On epc rating, 12 Kings Tower runs well behind the street norm.

Price per m²

£2,397

Street avg £3,604

Strongly below

Floor Area

73 m²

Street avg 75 m²

Above

Habitable Rooms

3 rooms

Street avg 3 rooms

Above

CO₂ Emissions

1.1 t/year

Street avg 2.0 t/year

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 Chelmsford district page.
Full Chelmsford report

Rail-style transport is unusually close for this postcode.

Crime

420/mo

Steady year-on-year across the wider district.

Nearest stop

0.1 km

Bus Station — bus station.

Closest school

0.5 km

King Edward VI Grammar School, Chelmsford. 32 schools nearby.

Nearest schools

  • King Edward VI Grammar School, ChelmsfordSecondary495m
  • Maltese Road Primary SchoolPrimary640m
  • The Cathedral Church of England Voluntary Aided Primary School, ChelmsfordPrimary672m
  • Our Lady Immaculate Catholic Primary SchoolPrimary757m

Nearest stops

  • Bus StationBus station88m
  • Bus StationBus stop108m
  • Chelmsford Rail StationRailway station165m
  • Chelmsford Rail StationRailway station166m

Most reported crime locally

  • Violence & Sexual Offences3,276 reports43%
  • Shoplifting941 reports12%
  • Anti-social Behaviour593 reports8%
  • Public Order542 reports7%

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 CM1 1GS from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for CM1 1GS

Daytime· 07:00 – 23:00

55.4dB

Moderate
Night-time road noise heatmap for CM1 1GS

Night-time· 23:00 – 07:00

46.5dB

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

21st century2nd Floor FlatEPC DNo mains gas

Because the property has no mains gas supply, 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.
£281k

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2 bed1 bath
£239k

1 Hill Court, Victoria Road

CM1 1SP

2 bed2 bath
£217k

1 Hodge Court, Broomfield Road

CM1 1SD

2 bed1 bath
£311k

1 Henry Road

CM1 1RG

1 bed1 bath
£180k

1 Cathedral Walk

CM1 1NX

1 bed1 bath
£415k

1 Elms Drive

CM1 1RH

3 bed1 bath
£474k

1 Coval Avenue

CM1 1TF

3 bed2 bath
£262k

1 Apsley House, Waterloo Lane

CM1 1BD

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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 12 Kings Tower is modelled from its 73 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in CM1 1GS. 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 12 Kings Tower. 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 12 Kings Tower was lodged in September 2025 at band D and is valid until September 2035. 2 certificates are on record, which shows how the home has changed.
Planning records
Planning applications are collected from local authority registers through PlanIt. None is matched to 12 Kings Tower. 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 18 months, which places each incident at an approximate point. The 32 schools and 30 stops listed are measured in a straight line from CM1 1GS, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
Council tax band
12 Kings Tower is in council tax band E. 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 12 Kings Tower, Marconi Plaza, Chelmsford, CM1 1GS. Each answer is also embedded as structured data for search engines.

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