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Get started23 Hartwort Close is a three-bedroom detached house in Walnut Tree, Milton Keynes, Milton Keynes (MK7 7LJ). It has a recorded floor area of 70 m² (around 753 sq ft), construction records dating it to 1996-2002 and council tax band C. The latest certificate (November 2020) shows a C (score 71). When first surveyed in September 2010 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Good, hot-water efficiency went from Average to Good and lighting went from Poor to Very Good. The recommended improvements would push it to B (score 86).
Sale prices here have outpaced Milton Keynes HPI: 7% per year against 0% for the wider region. Today's modelled estimate of £324,000 sits 52.8% above the 2014 sale of £212,000. On a £-per-square-foot basis, the last sale (£281/sq ft) was about 102% above the typical sold price in the postcode. At 70 m² the property is well over the postcode median (48 m² across 23 EPCs), placing it in the larger end of the local stock. 12 years since the last transfer (October 2014). Across the public record there are 8 sales, relatively high churn for a single property.
Sale price has grown by over 3x since 1995.
£324,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.0% per year over 20 years.
£212,000
Growth on file: 7.0% per year over 20 years.
Everything we know about this property, compiled into one in-depth, downloadable report.
EPC Rating for 23 Hartwort Close runs comfortably ahead of the street norm.
Price per m²
£3,029
Street avg £2,840
Floor Area
70 m²
Street avg 59 m²
Habitable Rooms
4 rooms
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Silverweed Court — bus stop.

Daytime· 07:00 – 23:00
55.5dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Roof insulation improved
Floor insulation added or improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
31 October 2014Most recent
£212,000
+3.4%over 7 years24 August 2007
£205,000
+31.4%over 4 years20 December 2002
£156,000
+122.9%over 4 years18 November 1998
£69,995
+17.6%over 1 year29 November 1996
£59,500
+10.2%3 September 1996
£54,000
-5.3%7 March 1996
£57,000
+2.7%over 1 year10 February 1995
£55,500
Median price across the last 5 sales in MK7 7LJ: £230,000 (2025–2021).
17 Hartwort Close Walnut Tree Milton Keynes
Sold Aug 2025
30 Hartwort Close Walnut Tree Milton Keynes
Sold Oct 2023
28 Hartwort Close Walnut Tree Milton Keynes
Sold Dec 2021
18 Hartwort Close Walnut Tree Milton Keynes
Sold Oct 2021
15 Hartwort Close Walnut Tree Milton Keynes
Sold Jun 2021
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Street avg 3 rooms
CO₂ Emissions
2.5 t/year
Street avg 3.5 t/year
MK7 7BJ
Closest school
0.3 km
Walton High. 19 schools nearby.
Night-time· 23:00 – 07:00
44.7dB