18 Duchess Road, Osbaston, Monmouth, NP25 3HT
About 18 Duchess Road
18 Duchess Road is a four-bedroom detached house in Osbaston, Monmouth, Monmouth (NP25 3HT). It has a recorded floor area of 150 m² (around 1615 sq ft), construction records dating it to 1967-1975 and council tax band E. The latest certificate (June 2019) shows a C (score 72). The recommended improvements would push it to B (score 83).
One planning record on file: an extension approved in 2008. Past consents include an extension, meaningful when judging how the property has evolved. Across 1999–2021, sale prices on this property compounded at 7.5% per year. Today's modelled estimate of £538,000 is 20.9% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£276/sq ft) was about 18.3% above the typical sold price in the postcode. Last sale on file: £445,000 in January 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 18 Duchess Road
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
- Dining roomYes
- EnsuiteYes
Outside
- GarageYes
Building
- RefurbishedYes
Energy performance
EPC Rating
Planning history
18 Duchess Road has an approved single-storey extension on the planning record.
- Aug 2008ExtensionFullIn report
Extension: Single storey
Alterations and extensions including new first floor bedrooms to existing house
- Documents
- 13 docs on file
- Reference
- DC/2008/00771
We flagged 1 thing worth checking at 18 Duchess Road
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 Duchess Road has more than quadrupled in price since its earliest registered sale in 1999.
£538,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.5% per year over 22 years.
£445,000
Growth on file: 7.5% per year over 22 years.
Sales timeline
15 January 2021Most recent
£445,000
+381.1%over 21 years26 March 1999
£92,500
Median price across the last 5 sales in NP25 3HT: £370,000 (2025–2023).
Nearby sales in NP25 3HT
4 Duchess Road, Osbaston, Monmouth, NP25 3HT
Sold Jul 2025
£767,00045 Duchess Road, Osbaston, Monmouth, NP25 3HT
Sold Feb 2025
£360,00039 Duchess Road, Osbaston, Monmouth, NP25 3HT
Sold Jan 2025
£366,00031 Duchess Road, Osbaston, Monmouth, NP25 3HT
Sold May 2024
£405,00024 Duchess Road, Osbaston, Monmouth, NP25 3HT
Sold Oct 2023
£370,000
Everything we know about 18 Duchess Road, 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 Road homes
Price per m²
£2,967
Street avg £2,903
Floor Area
150 m²
Street avg 141 m²
Habitable Rooms
7 rooms
Street avg 6 rooms
CO₂ Emissions
4.0 t/year
Street avg 4.8 t/year
Similar properties nearby
1 Chippenhamgate Street
NP25 3DH
1 Auden Close, Osbaston
NP25 3NW
1 Dixton Close
NP25 3PG
1 Church Farm, Wyesham
NP25 3GZ
1 Charles Close, Osbaston
NP25 3JD
1 Berryfield Park, Osbaston
NP25 3DQ
1 Duchess Close, Osbaston
NP25 3JL
1 Greenlands Close, Wyesham
NP25 3LP
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.