15 Maddox Close, Osbaston, Monmouth, NP25 3BG
About 15 Maddox Close
15 Maddox Close is a three-bedroom detached house in Osbaston, Monmouth, Monmouth (NP25 3BG). It has a recorded floor area of 84 m² (around 904 sq ft), construction records dating it to 1991-1995 and council tax band E. The latest certificate (February 2019) shows a C (score 70). When first surveyed in March 2015 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 Good to Very Good. The recommended improvements would push it to B (score 84). Other recorded features include a conservatory. The home occupies a cul-de-sac position.
Most recent transfer: February 2022 at £370,000. Across the public record there are 4 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. One planning record on file: an extension approved in 2020. Past consents include an extension and a garage conversion, meaningful when judging how the property has evolved. Across 2007–2022, sale prices on this property compounded at 3.3% per year. Today's modelled estimate of £409,000 is 10.5% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£409/sq ft) was about 77.8% above the typical sold price in the postcode. At 84 m² it's 23.1% smaller than the typical home in the postcode (109 m² median across 21 EPCs).
Know exactly what you're buying at 15 Maddox 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
- Bedrooms3
- Bathrooms2
- Dining roomYes
- ConservatoryYes
Outside
- Private gardenRear
- GarageIntegral
- Cul-de-sacYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency improved
More low energy lighting installed
Planning history
- Jan 2020Garage ConversionFullIn report
Extension: Single storey
Extension at first floor level over existing garage and utility room, conversion of garage to habitable room, associated internal alterations and alterations to fenestration. Demolition of conservatory.
Extension- Documents
- 6 docs on file
- Reference
- DM/2019/02023
We flagged 1 thing worth checking at 15 Maddox 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
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Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£409,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.3% per year over 15 years.
£370,000
Growth on file: 3.3% per year over 15 years.
Sales timeline
22 February 2022Most recent
£370,000
+31.0%over 2 years22 July 2019
£282,500
+10.8%over 4 years9 July 2015
£255,000
+11.8%over 8 years2 February 2007
£228,000
Median price across the last 5 sales in NP25 3BG: £422,000 (2025–2023).
Nearby sales in NP25 3BG
25 Maddox Close, Osbaston, Monmouth, NP25 3BG
Sold Apr 2025
£485,00023 Maddox Close, Osbaston, Monmouth, NP25 3BG
Sold Sept 2024
£422,00017 Maddox Close, Osbaston, Monmouth, NP25 3BG
Sold Aug 2024
£462,5003 Maddox Close, Osbaston, Monmouth, NP25 3BG
Sold Jun 2024
£370,00024 Maddox Close, Osbaston, Monmouth, NP25 3BG
Sold Jan 2023
£400,000
Everything we know about 15 Maddox 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 Maddox Close homes
15 Maddox Close is notably below the street on floor area.
Price per m²
£4,405
Street avg £3,072
Floor Area
84 m²
Street avg 114 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
3.2 t/year
Street avg 4.3 t/year
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The neighbourhood at a glance
Crime
1/mo
Steady year-on-year across the wider district.
Nearest stop
0.3 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.