10a is a detached house in Bassingbourn, Royston, Royston (SG8 5PS). It has a recorded floor area of 103 m² (around 1109 sq ft), construction records dating it to 1991-1995 and council tax band C. The latest certificate (November 2021) shows an E (score 48), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 77), a 2-band jump. Main heating runs on oil.
It hasn't traded since December 1999, a hold of 26 years that's notably long for the area. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £420,000 sits 328.6% above the 1999 sale of £98,000. On a £-per-square-foot basis, the last sale (£88/sq ft) was about 52.5% below the postcode norm. One planning record on file: a garage conversion approved in 2015. Past consents include a garage conversion, meaningful when judging how the property has evolved. At 103 m² it's 24.8% larger than the typical home in the postcode (83 m² median across 28 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 86% 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
Launch offer · save £5
10a's carbon output runs well above what efficient homes in the postcode produce.
Conversion of garage to habitable accomodation
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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10a's modelled value sits at over four times its earliest registered sale price (1999).
£420,000
Modelled from EPC, postcode comparables.
£98,000
Recorded with HM Land Registry.
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
10a outperforms the street on habitable rooms by a wide margin.
Price per m²
£951
Street avg £2,443
Floor Area
103 m²
Street avg 76 m²
Habitable Rooms
7 rooms
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
10 December 1999Most recent
£98,000
Median price across the last 5 sales in SG8 5PS: £290,000 (2023–2016).

Street avg 4 rooms
CO₂ Emissions
6.7 t/year
Street avg 2.9 t/year
SG8 5GR
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