Flat 1, 3 Priory Street, Monmouth, NP25 3BR
About Flat 1
Flat 1 is a mid-terrace house in Monmouth (NP25 3BR). It has a recorded floor area of 56 m² (around 603 sq ft) and construction records dating it to before 1900. At 56 m² this is the largest unit on EPC record across the building (39–56 m²). The building's EPC ratings span G to C, with this unit at the top. On EPC score it ranks first in the building (70 versus a worst of 10). The latest certificate (January 2026) shows a C (score 70). When first surveyed in December 2009 the rating was G, the property has climbed 4 bands since. Between certificates, wall efficiency went from Very Poor to Poor, roof efficiency went from Very Poor to Average and hot-water efficiency went from Very Poor to Poor; while window efficiency dropped from Poor to Very Poor and lighting dropped from Very Good to Good. Main heating runs on electricity. This certificate was lodged in the last six months, so the rating reflects current condition.
One planning application is currently pending a decision in 2024. The record references listed-building consent, which constrain future alterations. On energy efficiency it sits in the top 10% of properties in this postcode.
Know exactly what you're buying at Flat 1
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
Flat 1 ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
More low energy lighting installed
Heating system upgraded to a more efficient system
Hot water system upgraded
Wall insulation improved
Loft insulation installed or upgraded to 250mm+
Planning history
Flat 1 has a listed-building consent on record — alterations to a listed property are tightly controlled.
- Apr 2024RenovationHeritageIn report
Refurbishment of 6no flats and rear 'cottage' within grade II* listed building, including upgrading thermal efficiency to improve EPC.
Listed- Documents
- 30 docs on file
- Reference
- DM/2024/00500
We flagged 1 thing worth checking at Flat 1
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
Flat 1 has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£146,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in NP25 3BR: £220,000 (2025–2007).
Everything we know about Flat 1, 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 Priory Street homes
Flat 1 outperforms the street on co₂ emissions by a wide margin.
EPC Rating
70 (C)
Street avg 51 (E)
Floor Area
56 m²
Street avg 54 m²
CO₂ Emissions
0.8 t/year
Street avg 3.6 t/year
Habitable Rooms
2 rooms
Street avg 2 rooms
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The neighbourhood at a glance
Crime
1/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Agincourt Square — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.