51a is a four-bedroom detached house in Great Brickhill, Milton Keynes, Milton Keynes (MK17 9AG). It has a recorded floor area of 151 m² (around 1625 sq ft), construction records dating it to 1976-1982 and council tax band F. The latest certificate (October 2015) shows a D (score 60), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since October 2013. Between certificates, roof efficiency went from Good to Very Good and window efficiency went from Average to Good; while wall efficiency dropped from Good to Average and lighting dropped from Average to Poor. The recommended improvements would push it to C (score 74). The latest certificate is from October 2015, so improvements made since then won't be reflected.
Sale prices here have outpaced Milton Keynes HPI: 5.7% per year against 0% for the wider region. Today's modelled estimate of £854,000 is 13.9% above the 2018 sale price. On a £-per-square-foot basis, the last sale (£461/sq ft) was about 48.5% above the typical sold price in the postcode. One planning record on file: an extension approved in 2016. Past consents include an extension, meaningful when judging how the property has evolved. Sold December 2018 for £750,000.
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Launch offer · save £5
51a's carbon output runs well above what efficient homes in the postcode produce.
This certificate is over 10 years old and is no longer valid.Expired 13 Oct 2025
51a has an approved front 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.
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Sale price has at least doubled since 2003.
£854,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.7% per year over 15 years.
£750,000
Growth on file: 5.7% per year over 15 years.
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
On habitable rooms, 51a runs well behind the street norm.
Price per m²
£4,967
Street avg £4,196
Floor Area
151 m²
Street avg 156 m²
Habitable Rooms
5 rooms
Street avg 6 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
44.0dB

Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Changes detected from historical EPC data
Window efficiency improved
Loft insulation upgraded to recommended levels
Extension: Front of property
Single storey front extension to garage
11 December 2018Most recent
£750,000
+33.9%over 4 years23 June 2014
£560,000
+73.9%over 10 years26 August 2003
£322,000
Median price across the last 5 sales in MK17 9AG: £579,000 (2025–2022).
28 Lower Way Great Brickhill Milton Keynes
Sold Mar 2025
7 Lower Way Great Brickhill Milton Keynes
Sold Feb 2025
12 Lower Way Great Brickhill Milton Keynes
Sold Jan 2025
32b Lower Way Great Brickhill Milton Keynes
Sold Aug 2024
48 Lower Way Great Brickhill Milton Keynes
Sold Oct 2022

CO₂ Emissions
6.2 t/year
Street avg 7.5 t/year
MK17 9FR
Rotten Row — bus stop.
Closest school
0.3 km
High Ash Church of England Primary School. 2 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
36.1dB