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21 Knightwood Close, Ashurst, Southampton, SO40 7FE

EPC B

Estimated value

£580,000

  • Since the 2003 sale (£250,000)+132%
  • Against SO40 7FE's recent median (£498,500)+16%

Newest record on this page: August 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 area
132 m²
1421 sq ft
Energy rating
B
Score 86
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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

£580,000

  • Against its 2003 sale (£250,000)+132%
  • Against SO40 7FE's recent median (£498,500)+16%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 21 Knightwood Close is modelled from its 132 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in SO40 7FE. 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

    132 m² from the EPC lodged in October 2020

  • Sales of this home

    2 sales recorded, the latest in 2003

  • Recent sales in SO40 7FE

    5 sales, median £498,500 (2025–2021)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: August 2025Latest 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.

21 Knightwood Close's modelled value sits at over four times its earliest registered sale price (1997).

Sales timeline

  1. 28 February 2003Most recent

    £250,000

    +85.2%over 6 years

  2. 10 January 1997

    £135,000

Median price across the last 5 sales in SO40 7FE: £498,500 (2025–2021).

Risks

What this page doesn't show

1 potential issue has already been flagged for 21 Knightwood Close, Ashurst, Southampton, SO40 7FE. The detail, evidence and what to ask about it are in the Risks 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 21 Knightwood Close

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

21 Knightwood Close is a detached house in Ashurst, Southampton, Southampton (SO40 7FE). It has a recorded floor area of 132 m² (around 1421 sq ft). The latest certificate (October 2020) returns a high B (score 86), putting the home a stone's throw from an A rating. The recommended improvements would push it to A (score 109).

It hasn't traded since February 2003, a hold of 23 years that's notably long for the area. At 132 m² it's 15.8% larger than the typical home in the postcode (114 m² median across 15 EPCs). On energy efficiency it sits in the top 10% of properties in this postcode. Across 1997–2003, sale prices on this property compounded at 10.6% per year. Today's modelled estimate of £580,000 sits 132% above the 2003 sale of £250,000. On a £-per-square-foot basis, the last sale (£176/sq ft) was about 47% below the postcode norm.

Before you decide

Everything you need to know about 21 Knightwood Close

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

Larger 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.

21 Knightwood Close ranks among the most efficient homes in the postcode for energy use.

Current Certificate
Oct 2020

EPC Rating

A
B
B86
C
D
E
F
G
Main Heating
Electric & Gas
Main Fuel
Gas
Hot Water
Good
Windows
Very Good
CO2 Emissions
1.4 t/year
Occupancy
—

Certificate validity

Valid until 29 October 2030

3 years remaining
Planning

Planning history

Applications and permits filed against 21 Knightwood Close, Ashurst, Southampton, SO40 7FE, sourced from the PlanIt planning register.

21 Knightwood Close has no planning applications on record.

2

But the area is active

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

On the street

Versus other Knightwood Close homes

Four headline reads against 15 similar houses on this street, drawn from the latest EPC and Land Registry data.

21 Knightwood Close is notably below the street on price per m².

Price per m²

£1,894

Street avg £3,935

Strongly below

Floor Area

132 m²

Street avg 113 m²

Strongly above

CO₂ Emissions

1.4 t/year

Street avg 5.4 t/year

Strongly above

Years Held

23 years

Street avg 7 years

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 Southampton district page.
Full Southampton report

Rail-style transport is unusually close for this postcode.

Crime

229/mo

Falling year-on-year across the wider district.

Nearest stop

0.1 km

Lyndhurst Road — bus stop.

Closest school

0.9 km

Foxhills Junior School. 7 schools nearby.

Nearest schools

  • Foxhills Junior SchoolPrimary935m
  • Foxhills Infant SchoolPrimary950m
  • Hounsdown SchoolSecondary2.0km
  • Netley Marsh Church of England Infant SchoolPrimary2.3km

Nearest stops

  • Lyndhurst RoadBus stop113m
  • Ash GroveBus stop167m
  • Co-OpBus stop198m
  • The Forest InnBus stop260m

Most reported crime locally

  • Violence & Sexual Offences1,312 reports48%
  • Public Order235 reports9%
  • Anti-social Behaviour227 reports8%
  • Criminal Damage & Arson206 reports8%

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 SO40 7FE from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for SO40 7FE

Daytime· 07:00 – 23:00

47.7dB

Low
Night-time road noise heatmap for SO40 7FE

Night-time· 23:00 – 07:00

40.0dB

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

Detached HouseEPC 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.

From £795 · 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.
£594k

1 Fairmead Way, Totton

SO40 7JH

5 bed3 bath
£542k

1 Ashurst Close, Ashurst

SO40 7BP

£627k

1 Busketts Way, Ashurst

SO40 7AE

3 bed1 bath
£528k

1 Copsewood Road, Ashurst

SO40 7DL

2 bed
£521k

1 Ash Road, Ashurst

SO40 7AT

3 bed3 bath
£502k

1 Durley Crescent, Totton

SO40 7QA

4 bed2 bath
£500k

1 Chestnut Drive, Ashurst

SO40 7DW

3 bed2 bath
£680k

1 Fir Road, Ashurst

SO40 7AZ

3 bed

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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 21 Knightwood Close is modelled from its 132 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in SO40 7FE. 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 21 Knightwood Close. 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 21 Knightwood Close was lodged in October 2020 at band B and is valid until October 2030. 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 21 Knightwood Close. 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 12 months, which places each incident at an approximate point. The 7 schools and 30 stops listed are measured in a straight line from SO40 7FE, 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 21 Knightwood Close, Ashurst, Southampton, SO40 7FE. Each answer is also embedded as structured data for search engines.

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