Annexe is a detached house in Great Horwood, Milton Keynes, Milton Keynes (MK17 0QW). It has a recorded floor area of 321 m² (around 3455 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (July 2024) shows a D (score 59), a step below the typical UK home. When first surveyed in October 2008 the rating was F, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Poor, roof efficiency went from Good to Very Good and window efficiency went from Very Poor to Good. The recommended improvements would push it to C (score 71). Main heating runs on oil.
At 321 m² the property is well over the postcode median (140 m² across 13 EPCs), placing it in the larger end of the local stock.
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Launch offer · save £5
Annexe's carbon output runs well above what efficient homes in the postcode produce.
Annexe has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Annexe has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£985,000
Modelled from EPC, postcode comparables.
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
What it's really worth, what could be wrong, and the planning, sales and area data in full.
On floor area, Annexe stands well clear of the street.
EPC Rating
59 (D)
Street avg 60 (D)
Floor Area
321 m²
Street avg 146 m²
CO₂ Emissions
14.0 t/year
Street avg 6.2 t/year
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
0.1 km

Daytime· 07:00 – 23:00
45.8dB

Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Changes detected from historical EPC data
Heating system upgraded to a more efficient system
Heating controls changed
Hot water efficiency improved
Single glazing replaced with double or better glazing
Wall insulation improved
Loft insulation upgraded to recommended levels
Floor insulation added or improved
More low energy lighting installed
Heating system changed
Heating controls upgraded for better temperature management
Hot water efficiency decreased
Roof insulation improved
Low energy lighting percentage decreased
Upgraded to gas central heating
Fuel source changed
Heating controls upgraded for better temperature management
Hot water system upgraded
Single glazing replaced with double or better glazing
More low energy lighting installed
Median price across the last 5 sales in MK17 0QW: £630,000 (2025–2022).
16 Spring Lane Great Horwood Milton Keynes
Sold Sept 2025
Wigwell Spring Lane Great Horwood Milton Keynes
Sold Jun 2025
8 Spring Lane Great Horwood Milton Keynes
Sold May 2024
30 Spring Lane Great Horwood Milton Keynes
Sold Mar 2024
2 Spring Lane Great Horwood Milton Keynes
Sold Aug 2022

Habitable Rooms
13 rooms
Street avg 6 rooms
MK17 0JJ
Spring Lane — bus stop.
Closest school
0.4 km
Great Horwood Church of England School. 3 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
38.3dB