9 Mentone Avenue is a detached house in Aspley Guise, Milton Keynes, Milton Keynes (MK17 8EQ). It has a recorded floor area of 170 m² (around 1830 sq ft), construction records dating it to 1967-1975 and council tax band F. The latest certificate (April 2024) shows a C (score 73). When first surveyed in January 2019 the rating was E, the property has climbed 2 bands since. Between certificates, roof efficiency went from Good to Very Good, window efficiency went from Average to Good and hot-water efficiency went from Poor to Good. The recommended improvements would push it to B (score 82).
Sale prices here have outpaced Milton Keynes HPI: 10.3% per year against -0.1% for the wider region. On a £-per-square-foot basis, the last sale (£519/sq ft) was about 77.5% above the typical sold price in the postcode. Most recent transfer was August 2025 at £950,000 — fresh data. One planning record on file: an extension approved in 2020. Past consents include an extension, meaningful when judging how the property has evolved. Its energy rating outperforms most of the postcode (better than 78% of similar EPCs).
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
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9 Mentone Avenue has an approved single-storey extension on the planning record.
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
9 Mentone Avenue valuation sits well clear of the typical sold price in this postcode.
£868,000
Modelled from EPC, postcode comparables and a sale-price growth of 10.3% per year over 6 years.
£950,000
Growth on file: 10.3% per year over 6 years.
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
On years held, 9 Mentone Avenue runs well behind the street norm.
Price per m²
£5,588
Street avg £4,228
Floor Area
170 m²
Street avg 183 m²
Habitable Rooms
7 rooms
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km

Daytime· 07:00 – 23:00
45.0dB

Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Windows upgraded, improving insulation
Loft insulation upgraded to recommended levels
More low energy lighting installed
Extension: Single storey
Proposed first floor side extension over existing flat roof garage with a two storey front element
30-day money-back guarantee
22 August 2025Most recent
£950,000
+75.9%over 5 years27 November 2019
£540,000
Median price across the last 5 sales in MK17 8EQ: £935,000 (2024–2018).
10 Mentone Avenue Aspley Guise Milton Keynes
Sold Mar 2024
19 Mentone Avenue Aspley Guise Milton Keynes
Sold Dec 2021
6 Mentone Avenue Aspley Guise Milton Keynes
Sold Feb 2021
14 Mentone Avenue Aspley Guise Milton Keynes
Sold May 2019
29 Mentone Avenue Aspley Guise Milton Keynes
Sold Nov 2018

Street avg 7 rooms
CO₂ Emissions
4.9 t/year
Street avg 8.0 t/year
MK17 8DQ
Duke Street — bus stop.
Closest school
0.9 km
Aspley Guise Village School. 6 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Night-time· 23:00 – 07:00
36.4dB