23 Church Street is a five-bedroom detached house in Thriplow, Royston, Royston (SG8 7RE). It has a recorded floor area of 342 m² (around 3679 sq ft), construction records dating it to 2007 onwards and council tax band G. The latest certificate (March 2011) shows a C (score 77), near the top of the C band. When first surveyed in January 2011 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Good to Very Good and main heating went from Average to Good; while lighting dropped from Very Good to Average. Main heating runs on oil. The latest certificate is from March 2011, so improvements made since then won't be reflected. Records show the property has been extended at some point in its history.
Untraded for 15 years, with the last transfer in May 2011. Sale prices here have outpaced England HPI: 32.8% per year against 0% for the wider region. Today's modelled estimate of £1,448,000 is 20.7% above the 2011 sale price. At 342 m² the property is well over the postcode median (162 m² across 24 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 88% of similar EPCs). 5 bedrooms is on the larger side for this postcode, where 3 is the typical count. 9 planning records sit against the property, 5 approved, 0 refused. Past consents include an extension, an annexe and tree works, meaningful when judging how the property has evolved. The record references listed-building consent, which constrain future alterations.
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
23 Church Street'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This certificate is over 10 years old and is no longer valid.Expired 29 Mar 2021
23 Church Street has a listed-building consent on record — alterations to a listed property are tightly controlled.
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.
30-day money-back guarantee
23 Church Street has more than doubled in price since the earliest registered sale in 2007.
£1,448,000
Modelled from EPC, postcode comparables and a sale-price growth of 32.8% per year over 4 years.
£1,200,000
Growth on file: 32.8% per year over 4 years.
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
On floor area, 23 Church Street stands well clear of the street.
Price per m²
£3,511
Street avg £4,428
Floor Area
342 m²
Street avg 184 m²
CO₂ Emissions
6.7 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
0.3 km

Daytime· 07:00 – 23:00
42.8dB

Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Changes detected from historical EPC data
Wall insulation improved
Submission of details required by conditions 3 (External Materials), 4 (Methodology for protection of the listed buildings), 5 (Arboricultural Method Statement and Tree Protection Strategy), 6 (Surface water and foul water), 7 (Construction Ecological Management Plan (CEcMP)) and 9 (Scheme of biodiversity enhancement) of planning permission 20/01678/FUL
Submission of details required by condition 12 (Carbon Emissions) of planning permission 20/01678/FUL
5 May 2011Most recent
£1,200,000
+185.7%over 3 years24 August 2007
£420,000
Median price across the last 5 sales in SG8 7RE: £935,000 (2024–2019).

Street avg 9.5 t/year
Years Held
15 years
Street avg 10 years
SG8 7XP
Thriplow CofE 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
35.9dB