15a is a semi-detached house in Bassingbourn, Royston, Royston (SG8 5PS). It has a recorded floor area of 57 m² (around 614 sq ft), construction records dating it to 1983-1990 and council tax band B. The latest certificate (December 2025) returns a B (score 84), comfortably above the UK average. When first surveyed in October 2010 the rating was E, the property has climbed 3 bands since. Between certificates, roof efficiency went from Good to Very Good, lighting went from Poor to Average and main heating went from Poor to Very Good. Main heating runs on electricity. This certificate was lodged in the last six months, so the rating reflects current condition.
At 57 m² it sits well below the postcode median (84 m² across 28 EPCs), making it one of the more compact homes locally.
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
15a's carbon output is low for the local stock.
15a has no planning applications on record.
The full report still covers planning activity across the surrounding area.
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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15a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£239,000
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.
What we flagged
15a outperforms the street on co₂ emissions by a wide margin.
EPC Rating
84 (B)
Street avg 70 (C)
Floor Area
57 m²
Street avg 78 m²
CO₂ Emissions
0.3 t/year
Street avg 3.1 t/year
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Closest school
0.7 km

Daytime· 07:00 – 23:00
43.7dB

Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Changes detected from historical EPC data
More low energy lighting installed
Heat pump installed, significantly improving energy efficiency
Heating controls upgraded for better temperature management
Hot water system upgraded
Loft insulation upgraded to recommended levels
Heating controls upgraded for better temperature management
Hot water system changed
Window efficiency improved
Low energy lighting percentage decreased
Heating controls upgraded for better temperature management
Hot water efficiency improved
Wall insulation upgraded
More low energy lighting installed
Median price across the last 5 sales in SG8 5PS: £290,000 (2023–2016).

Habitable Rooms
3 rooms
Street avg 4 rooms
SG8 5LY
Bassingbourn Village College. 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
36.0dB