18 Church Street is a one-bedroom mid-terrace house in Guilden Morden, Royston, Royston (SG8 0JD). It has a recorded floor area of 43 m² (around 463 sq ft), construction records dating it to before 1900 and council tax band B. The latest certificate (October 2020) shows an E (score 49), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since October 2010. Between certificates, roof efficiency went from Very Poor to Poor and lighting went from Good to Very Good; while hot-water efficiency dropped from Average to Very Poor. The recommended improvements would lift it to A (score 97), a 4-band jump. Main heating runs on oil.
Untraded for 22 years, with the last transfer in January 2004. Sale prices here have outpaced England HPI: 14.8% per year against 0% for the wider region. Today's modelled estimate of £222,000 sits 87.7% above the 2004 sale of £118,250. At 43 m² it sits well below the postcode median (120 m² across 28 EPCs), making it one of the more compact homes locally. 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count.
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
Recommended upgrades on file would lift this property by multiple EPC bands.
18 Church Street has no planning applications on record.
Notable planning nearby
1applications of note in 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.
30-day money-back guarantee
Sale price has at least doubled since 1997.
£222,000
Modelled from EPC, postcode comparables and a sale-price growth of 14.8% per year over 6 years.
£118,250
Growth on file: 14.8% per year over 6 years.
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
Floor Area for 18 Church Street lags the street by a wide margin.
Price per m²
£2,750
Street avg £4,305
Floor Area
43 m²
Street avg 136 m²
Habitable Rooms
2 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
0.2 km

Daytime· 07:00 – 23:00
44.1dB

Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Changes detected from historical EPC data
Hot water system changed
Roof insulation improved
9 January 2004Most recent
£118,250
+131.9%over 6 years11 December 1997
£51,000
Median price across the last 5 sales in SG8 0JD: £603,000 (2025–2022).

Street avg 6 rooms
CO₂ Emissions
4.0 t/year
Street avg 8.6 t/year
SG8 0JL
Guilden Morden CofE Primary Academy. 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