4 Duchess Close, Osbaston, Monmouth, NP25 3JL
About 4 Duchess Close
4 Duchess Close is a detached house in Osbaston, Monmouth, Monmouth (NP25 3JL). It has a recorded floor area of 136 m² (around 1464 sq ft), construction records dating it to 1967-1975 and council tax band F. The latest certificate (April 2018) shows a D (score 67), on the cusp of jumping into the C band. When first surveyed in September 2010 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Good to Very Good, window efficiency went from Average to Good and hot-water efficiency went from Average to Good. The recommended improvements would lift it to B (score 81), a 2-band jump.
At 136 m² the property is well over the postcode median (87 m² across 5 EPCs), placing it in the larger end of the local stock. Across 2015–2020, sale prices on this property compounded at 11% per year. Today's modelled estimate of £551,000 is 36% above the 2020 sale price. Last sale on file: £405,000 in October 2020.
Know exactly what you're buying at 4 Duchess 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
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Low energy lighting percentage decreased
Heating controls upgraded for better temperature management
Hot water system upgraded
Window efficiency improved
Roof insulation improved
More low energy lighting installed
Planning history
4 Duchess Close has no planning applications on record.
Notable planning nearby
2applications of note in the surrounding area
We flagged 1 thing worth checking at 4 Duchess 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
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£551,000
Modelled from EPC, postcode comparables and a sale-price growth of 11.0% per year over 5 years.
£405,000
Growth on file: 11.0% per year over 5 years.
Sales timeline
28 October 2020Most recent
£405,000
+68.8%over 5 years21 October 2015
£240,000
Median price across the last 5 sales in NP25 3JL: £305,000 (2025–2021).
Nearby sales in NP25 3JL
2 Duchess Close, Osbaston, Monmouth, NP25 3JL
Sold Mar 2025
£160,0008 Duchess Close, Osbaston, Monmouth, NP25 3JL
Sold Dec 2022
£305,0007 Duchess Close, Osbaston, Monmouth, NP25 3JL
Sold Mar 2022
£495,0001 Duchess Close, Osbaston, Monmouth, NP25 3JL
Sold Jun 2021
£315,0003 Duchess Close, Osbaston, Monmouth, NP25 3JL
Sold Jul 2017
£275,000
Everything we know about 4 Duchess 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 Duchess Close homes
4 Duchess Close outperforms the street on floor area by a wide margin.
Price per m²
£2,978
Street avg £3,459
Floor Area
136 m²
Street avg 89 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
4.5 t/year
Street avg 3.6 t/year
Similar properties nearby
1 Chippenhamgate Street
NP25 3DH
1 Berryfield Park, Osbaston
NP25 3DQ
1 Auden Close, Osbaston
NP25 3NW
1 Clos Y Ficerdy, Wyesham
NP25 3HA
1 Dixton Close
NP25 3PG
1 Church Farm, Wyesham
NP25 3GZ
1 Chaucer Way, Osbaston
NP25 3NR
1 Charles Close, Osbaston
NP25 3JD
The neighbourhood at a glance
Crime
1/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Duchess Close — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.