15 Castle Close, Monmouth, NP25 5UG
About 15 Castle Close
15 Castle Close is a two-bedroom semi-detached house in Monmouth (NP25 5UG). It has a recorded floor area of 66 m² (around 710 sq ft), construction records dating it to 1996-2002 and council tax band D. The latest certificate (June 2014) shows a C (score 71). The recommended improvements would push it to B (score 86). The latest certificate is from June 2014, so improvements made since then won't be reflected.
Untraded for 29 years, with the last transfer in November 1997. 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 £218,000 sits 349.5% above the 1997 sale of £48,500. On a £-per-square-foot basis, the last sale (£68/sq ft) was about 44.7% below the postcode norm. At 66 m² it's 16.5% smaller than the typical home in the postcode (79 m² median across 15 EPCs).
Know exactly what you're buying at 15 Castle Close
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
- Bedrooms2
Outside
- Private gardenYes
- ParkingOff road
Building
- RefurbishedYes
Energy performance
15 Castle Close's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 09 Jun 2024
EPC Rating
Planning history
15 Castle Close has no planning applications on record.
Notable planning nearby
1applications of note in the surrounding area
We flagged 1 thing worth checking at 15 Castle Close
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
15 Castle Close's modelled value sits at over four times its earliest registered sale price (1997).
£218,000
Modelled from EPC, postcode comparables.
£48,500
Recorded with HM Land Registry.
Sales timeline
14 November 1997Most recent
£48,500
Median price across the last 5 sales in NP25 5UG: £235,000 (2025–2022).
Nearby sales in NP25 5UG
Everything we know about 15 Castle Close, 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 Castle Close homes
15 Castle Close is notably below the street on price per m².
Price per m²
£735
Street avg £1,984
Floor Area
66 m²
Street avg 77 m²
Habitable Rooms
3 rooms
Street avg 4 rooms
CO₂ Emissions
2.2 t/year
Street avg 2.9 t/year
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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
Cinderhill — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.