18 Cornpoppy Avenue, Monmouth, NP25 5SD
About 18 Cornpoppy Avenue
18 Cornpoppy Avenue is a four-bedroom detached house in Monmouth (NP25 5SD). It has a recorded floor area of 102 m² (around 1098 sq ft), construction records dating it to 2003-2006 and council tax band F. The latest certificate (April 2016) shows a C (score 75), near the top of the C band. When first surveyed in February 2013 the rating was D, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Average to Good and lighting went from Very Poor to Very Good. The recommended improvements would push it to B (score 86). The latest certificate is from April 2016, so improvements made since then won't be reflected.
Across 2004–2016, sale prices on this property compounded at 2.3% per year. Today's modelled estimate of £379,000 sits 53.1% above the 2016 sale of £247,500. At 102 m² it's 28.3% larger than the typical home in the postcode (79 m² median across 48 EPCs). Last sold in October 2016, so it's been off the market for around 10 years.
Know exactly what you're buying at 18 Cornpoppy Avenue
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms4
- Bathrooms2
- EnsuiteYes
Outside
- GarageYes
Energy performance
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 17 Apr 2026
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water system upgraded
More low energy lighting installed
Planning history
18 Cornpoppy Avenue has no planning applications on record.
Notable planning nearby
1applications of note in the surrounding area
We flagged 1 thing worth checking at 18 Cornpoppy Avenue
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.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
18 Cornpoppy Avenue valuation sits well clear of the typical sold price in this postcode.
£379,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.3% per year over 12 years.
£247,500
Growth on file: 2.3% per year over 12 years.
Sales timeline
13 October 2016Most recent
£247,500
+32.7%over 12 years22 April 2004
£186,500
Median price across the last 5 sales in NP25 5SD: £227,500 (2025–2023).
Nearby sales in NP25 5SD
Everything we know about 18 Cornpoppy Avenue, 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

Versus other Cornpoppy Avenue homes
18 Cornpoppy Avenue outperforms the street on floor area by a wide margin.
Price per m²
£2,426
Street avg £2,602
Floor Area
102 m²
Street avg 86 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
2.8 t/year
Street avg 2.5 t/year
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1 Ancre Hill Cottages, Rockfield Road
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The neighbourhood at a glance
Crime
1/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Wheatfield Close — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.