Mill House, Granville Street, Monmouth, NP25 3DR
About Mill House
Mill House is a semi-detached house in Monmouth (NP25 3DR). It has a recorded floor area of 146 m² (around 1572 sq ft), construction records dating it to before 1900 and council tax band F. The latest certificate (April 2018) shows an E (score 51), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 74), a 2-band jump.
3 planning records sit against the property, 2 approved, 0 refused, 1 pending. Past consents include an extension, meaningful when judging how the property has evolved. An active application for an extension is awaiting a decision. At 146 m² it's 15.9% larger than the typical home in the postcode (126 m² median across 3 EPCs). Across 2021–2022, sale prices on this property compounded at 28.5% per year. Today's modelled estimate of £407,000 is 34.8% above the 2022 sale price. Sold February 2022 for £301,950. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at Mill House
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
Mill House's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
- Apr 2024ExtensionOutlineIn report
Extension: Single storey · Rear of property
Removal of brick and block garage, carport and concrete driveway, to create garden area at rear and gravelled parking area. Erection of single storey extension to extend dining area and new entrance hall and boot room, under lean-to slate style pitched roof. Replace flat roof over existing study with slate style pitched roof.
- Documents
- 3 docs on file
- Reference
- DM/2024/00562
- Sept 2023ExtensionFullIn report
Extension: Part single, part two storey
First floor and part ground floor extensions and single storey garage / workshop.
- Documents
- 44 docs on file
- Reference
- DM/2023/00593
We flagged 2 things worth checking at Mill House
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
- Recent ownership pattern worth a look
30-day money-back guarantee
Sales history & valuation
Mill House changed hands twice within eighteen months — unusual for the area.
£407,000
Modelled from EPC, postcode comparables and a sale-price growth of 28.5% per year over 1 year.
£301,950
Growth on file: 28.5% per year over 1 year.
Sales timeline
4 February 2022Most recent
£301,950
+28.5%over 12 months12 February 2021
£235,000
Median price across the last 2 sales in NP25 3DR: £216,500 (2023–2007).
Nearby sales in NP25 3DR
Everything we know about Mill House, 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
- Recent ownership pattern worth a look

Versus other Granville Street homes
EPC Rating for Mill House lags the street by a wide margin.
EPC Rating
51 (E)
Street avg 55 (D)
Floor Area
146 m²
Street avg 122 m²
CO₂ Emissions
8.6 t/year
Street avg 6.7 t/year
Habitable Rooms
7 rooms
Street avg 6 rooms
Similar properties nearby
1 Chaucer Way, Osbaston
NP25 3NR
1 Charles Close, Osbaston
NP25 3JD
1 Church Farm, Wyesham
NP25 3GZ
1 Duchess Close, Osbaston
NP25 3JL
1 Dixton Close
NP25 3PG
1 Almshouse Street
NP25 3DE
1 Greenlands Close, Wyesham
NP25 3LP
1 Beaufort Mews, Agincourt Square
NP25 3BQ
The neighbourhood at a glance
Crime
1/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Rolls Hall — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.