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4 Sapphire Close, Kettering, Northamptonshire, NN15 7DW

How much is 4 Sapphire Close, Kettering, Northamptonshire, NN15 7DW worth?

Estimated value — November 2026

£352,000

Likely range £275,000 – £415,000Four in five similar homes sold within their range when we tested it.

Latest recorded sale March 1998

60%

confidence

Medium

Typically within 10% of the sale price

Property details

Detached house

Sapphire Close · Kettering · NN15 7DW

110 m²1,184 sq ftFloor area
1996-2002Built
Mains gas boilerHeating

Energy performance

Current ratingC72
PotentialB84

Mains Gas (Not Community) · EPC 0167-2847-6372-2990-5161 · inspected March 2020

Address

District
Kettering
County
Northamptonshire
See house prices in NN15 →

Value over time

  • Modelled value
  • Projected
  • Likely range (80%)
  • Today's estimate
£0£100k£200k£300k£400k£500k20002002200420062008201020122014201620182020202220242026£352,000

Drawn through each of this property's recorded sales and ending at today's estimate, with the UK House Price Index for its area and property type filling in the months between. The shaded band is where four in five prices fell when we tested this line against real sales of similar homes; it widens the further a month is from a recorded sale, and today it matches the likely range above.

View as a table
Modelled value at the end of each year, with any recorded sales
YearModelled valueLikely range
2000£125,542£107,888 – £145,044
2001£143,130£121,707 – £165,274
2002£175,067£147,368 – £203,190
2003£203,154£169,359 – £236,909
2004£223,891£185,254 – £261,023
2005£228,965£188,271 – £266,817
2006£237,826£194,107 – £277,453
2007£252,615£204,307 – £295,857
2008£213,704£171,491 – £250,856
2009£214,437£170,855 – £252,884
2010£218,513£173,870 – £258,458
2011£217,869£173,016 – £258,804
2012£215,974£171,291 – £257,972
2013£227,204£180,011 – £271,534
2014£242,868£211,552 – £268,490
2015£262,140£226,322 – £291,446
2016£284,113£243,105 – £317,665
2017£304,796£258,457 – £342,710
2018£314,728£264,456 – £355,860
2019£310,472£258,490 – £353,003
2020£322,788£266,259 – £369,039
2021£352,978£288,444 – £405,778
2022£380,990£308,402 – £440,380
2023£356,971£286,211 – £414,865
2024£356,935£283,435 – £417,071
2025£359,901£283,020 – £422,804
2026£352,000£275,000 – £415,000

Sale history

1998Sold
£90,995
2026Today — estimated
+287%£352,000

Mortgage calculator

£1,889

Estimated monthly repayment

£316,800

Loan amount

£363,314

Total interest

£680,114

Total repayable

A guide only, based on a capital repayment mortgage held at a constant interest rate for the full term. Not a mortgage offer or financial advice.

Related properties

About this property

4 Sapphire Close, Kettering, Northamptonshire, NN15 7DW is a detached house on Sapphire Close in Kettering, Northamptonshire. Stede's estimated value for November 2026 is £352,000. Four in five similar homes sold within their likely range when tested; for this property that range is £275,000 to £415,000. It combines their price per m² applied to its floor area (50%), its own last sale brought up to date with the House Price Index (25%) and recent sales of 70 similar homes in the same postcode sector (25%). The confidence score is 60 out of 100 (medium): estimates like this one are typically within 10% of the eventual sale price.

It last sold in March 1998 for £90,995. The current estimate is 287% higher than that price. The current owner has held it for about 28 years.

Its EPC energy-efficiency rating is band C (72 out of 100), with a potential of band B (84) after the recommended improvements. The certificate records a total floor area of 110 m² (1,184 sq ft). It was lodged in March 2020.

The modelled value is down 2% over the past year and up 1% over the past five years.

Among 10 nearby properties Stede tracks in the NN15 area, estimated values run from £344,000 to £386,000. This detached house's £352,000 sits around the middle of that range.

Common questions

How much is 4 Sapphire Close, Kettering, Northamptonshire, NN15 7DW worth?

Stede estimates 4 Sapphire Close, Kettering, Northamptonshire, NN15 7DW is worth £352,000 as of November 2026, within a likely range of £275,000 to £415,000. The estimate is generated automatically from recorded sale prices of this and similar nearby homes and the UK House Price Index, and is not a formal valuation.

When did 4 Sapphire Close, Kettering, Northamptonshire, NN15 7DW last sell?

It last sold in March 1998 for £90,995.

What type of property is 4 Sapphire Close, Kettering, Northamptonshire, NN15 7DW?

It is recorded as a Detached house on Sapphire Close in the NN15 postcode area.

What is the EPC rating of 4 Sapphire Close, Kettering, Northamptonshire, NN15 7DW?

4 Sapphire Close, Kettering, Northamptonshire, NN15 7DW has an EPC energy-efficiency rating of band C (72 out of 100). Its potential rating after the recommended improvements is band B (84). The certificate records a floor area of 110 m² (1,184 sq ft). EPC data is published by the Ministry of Housing, Communities & Local Government and reflects the most recent certificate on record.

How reliable is this estimate?

The confidence score is 60 out of 100 (medium). Tested against real sales of similar homes, estimates like this one are typically within 10% of the sale price, and four in five sold within their likely range. The figure is a data model, not a RICS valuation or Home Report, and should not be used for mortgage or legal decisions.

How does Stede calculate this estimate?

It combines their price per m² applied to its floor area (50%), its own last sale brought up to date with the House Price Index (25%) and recent sales of 70 similar homes in the same postcode sector (25%). Each piece of evidence gets the share that proved most accurate when tested against real sales of similar homes, and the same testing sets the likely range and confidence. Full detail is on the methodology page.

How we got this figure

We weighed the evidence below, giving each piece the share that proved most accurate when we tested it against real sales of similar homes. The likely range and confidence come from testing the same method against 56,151 real sales of similar homes.

  • Recent price per m² in the same postcode sector, for its 110 m²£338,86650%
  • Its sale in March 1998, brought up to today with the House Price Index£403,91225%
  • 70 similar homes sold recently in the same postcode sector£327,39925%

Estimate £352,000, likely £275,000 – £415,000

Read the full methodology and data sources →