16 Castle Close, Monmouth, NP25 5UG
About 16 Castle Close
16 Castle Close is a two-bedroom semi-detached house in Monmouth (NP25 5UG). It has a recorded floor area of 86 m² (around 926 sq ft), construction records dating it to 1976-1982 and council tax band D. The latest certificate (May 2016) shows a D (score 63), on the cusp of jumping into the C band. Earlier certificates rated it C (September 2013); the latest reading is one band lower. Between certificates, roof efficiency dropped from Good to Average and window efficiency dropped from Average to Poor. The recommended improvements would lift it to B (score 86), a 2-band jump. The latest certificate is from May 2016, so improvements made since then won't be reflected.
Across 1997–2013, sale prices on this property compounded at 6.3% per year. Today's modelled estimate of £234,000 sits 82.8% above the 2013 sale of £128,000. On a £-per-square-foot basis, the last sale (£138/sq ft) was about 27.1% above the typical sold price in the postcode. Last changed hands 13 years ago, in November 2013.
Know exactly what you're buying at 16 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
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 01 May 2026
EPC Rating
Property Improvements
Changes detected from historical EPC data
Glazing upgraded to newer, more efficient type
Low energy lighting percentage decreased
Planning history
16 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 16 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
Sale price has at least doubled since 1997.
£234,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.3% per year over 16 years.
£128,000
Growth on file: 6.3% per year over 16 years.
Sales timeline
19 November 2013Most recent
£128,000
+163.9%over 15 years5 December 1997
£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 16 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
On co₂ emissions, 16 Castle Close runs well behind the street norm.
Price per m²
£1,488
Street avg £1,934
Floor Area
86 m²
Street avg 75 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
3.9 t/year
Street avg 2.8 t/year
Similar properties nearby
1 Ancre Hill Cottages, Rockfield Road
NP25 5AU
1 Castle Close
NP25 5UG
1 Clawdd Du
NP25 5BG
1 Acer Way
NP25 5UQ
1 Cottage Homes, Rockfield
NP25 5SU
1 Brook House, Brook Estate
NP25 5AW
1 Brook Crescent
NP25 5AX
1 Chartist Rise
NP25 5GA
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.