18 High Street, Guilden Morden, Royston, SG8 0JP
2 planning records
About 18 High Street
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
18 High Street is a five-bedroom detached house in Guilden Morden, Royston, Royston (SG8 0JP). It has a recorded floor area of 240 m² (around 2583 sq ft) and construction records dating it to 1983-1990. The latest certificate (December 2023) shows a D (score 66), on the cusp of jumping into the C band. When first surveyed in October 2008 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Average to Good and lighting went from Very Poor to Very Good. The recommended improvements would push it to C (score 77). Main heating runs on oil. Records show the property has been extended at some point in its history.
Sale prices here have outpaced England HPI: 5% per year against 0% for the wider region. Today's modelled estimate of £911,000 sits 57.1% above the 2015 sale of £580,000. On a £-per-square-foot basis, the last sale (£225/sq ft) was about 19.6% below the postcode norm. 2 planning records sit against the property, 1 approved, 0 refused. Past consents include tree works, meaningful when judging how the property has evolved. At 240 m² it's 15.4% larger than the typical home in the postcode (208 m² median across 5 EPCs). Last sold in January 2015, so it's been off the market for around 11 years.
Before you offer
Know exactly what you're buying at 18 High Street
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Larger development activity nearby
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What this property has
Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.
Inside
- Bedrooms5
- Utility roomYes
- EnsuiteYes
- StudyYes
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
18 High Street's carbon output runs well above what efficient homes in the postcode produce.
Current Certificate(1 of 2)
Dec 2023
EPC Rating
A
B
C
D
D66
E
F
G
Main Heating
Gas
Main Fuel
Oil
Hot Water
Average
Windows
Good
CO2 Emissions
7.0 t/year
Occupancy
Rented
Planning history
Applications and permits filed against 18 High Street, Guilden Morden, Royston, SG8 0JP, sourced from the PlanIt planning register.
Planning history at 18 High Street is exclusively tree-management applications — typical for a property with mature trees on or near the plot.
- Dec 2025Tree WorksTreesIn report
Before you offer
We flagged 1 thing worth checking at 18 High Street
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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Sales history & valuation
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
18 High Street valuation sits well clear of the typical sold price in this postcode.
Current estimate
See how we calculated this£911,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.0% per year over 13 years.
Last sold (2015)
£580,000
Growth on file: 5.0% per year over 13 years.
Sales timeline
Before you offerLaunch offer · save £5
Everything we know about 18 High Street, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby
£9.99£14.99
Versus other High Street homes
Four headline reads against 5 similar houses on this street, drawn from the latest EPC and Land Registry data.
Price per m² for 18 High Street lags the street by a wide margin.
Price per m²
£2,417
Street avg £3,175
Floor Area
240 m²
Street avg 222 m²
Habitable Rooms
10 rooms
Similar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
The neighbourhood at a glance
A condensed read of the local area. Each tile links through to the full breakdown on the Royston district page.
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
0.4 km
Road noise across the postcode
Modelled day and night-time noise levels around SG8 0JP from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
43.0dB
Everything within walking distance
Schools, transport stops and scenic spots near this property — 2 points of interest in total.
Common questions
The questions buyers, sellers and homeowners most often ask about 18 High Street, Guilden Morden, Royston, SG8 0JP. Each answer is also embedded as structured data for search engines.
