The Coach House, St John Street, Monmouth, NP25 3EA
About The Coach House
The Coach House is a detached house in Monmouth (NP25 3EA). It has a recorded floor area of 138 m² (around 1485 sq ft), construction records dating it to before 1900 and council tax band B. The latest certificate (August 2021) shows an E (score 52), well below the UK norm with real room to improve. Earlier certificates rated it D (November 2008); the latest reading is one band lower. Between certificates, lighting went from Good to Very Good; while roof efficiency dropped from Good to Average and window efficiency dropped from Average to Poor. The recommended improvements would lift it to C (score 71), a 2-band jump.
At 138 m² the property is well over the postcode median (102 m² across 4 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. 7 planning records sit against the property, 7 approved, 0 refused. The record references listed-building consent, which constrain future alterations. Today's modelled estimate of £488,000 is 22% above the 2024 sale price. Most recent transfer: July 2024 at £400,000.
Know exactly what you're buying at The Coach 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
The Coach House sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
More low energy lighting installed
Planning history
The Coach House has a listed-building consent on record — alterations to a listed property are tightly controlled.
- Mar 2026ConditionsIn report
Discharge of condition ref DM/2024/00130 Kitchen extraction drawings by Concept (CCF UK): - Ground Floor Vent Layout (ref. CHM-GA-00-1001) - Elevations & 3D Visual (ref. CHM-EL-00-2001) - Builders Work (ref. CHM-BW-00-4001) - Equipment Schedule (ref. CHM-ES-00-5001) - Services Schematic (ref. CHM-SS-00-6001) - Fabrication - Main Canopy (ref. CHM-FD-00-7001)
- Documents
- 9 docs on file
- Reference
- DM/2026/00159
- Dec 2025ConditionsIn report
Discharge of conditions 4 & 6 relating to consent DM/2024/00130. Condition 4 - following drawing by Rio Architects Con 4 - Coach House, Monmouth Staircase Study #2 - Plans, Section, Views Condition 6, part (a) - following drawings by Rio Architects: - 0480-RIO-XX-ZZ-DR-A-31000-P01-External Window Details - 0480-RIO-XX-ZZ-DR-A-31010-P02-External Door Details - 0480-RIO-XX-ZZ-DR-A-31020-P01-Internal Door Details - 0480-RIO-XX-ZZ-DR-A-31021-P01-Internal Door Details - 0480-RIO-XX-ZZ-SH-A-06001-P02_Window Schedule - 0480-RIO-XX-ZZ-SH-A-06002-P02_Door Schedule and the following drawings by BWM Ltd. - Glazed door (ref. CHM-BWM-XX-DR-X-1001-S3-P1, CHM-BWM-XX-DR-X-2001-S3-P1, CHM-BWM-XX-DR-X-3001-S3-P1, and CHM-BWM-XX-DR-X-4001-S3-P1)
- Documents
- 11 docs on file
- Reference
- DM/2025/01294
We flagged 1 thing worth checking at The Coach 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
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Sales history & valuation
Latest sale on The Coach House was the highest on Land Registry record across the postcode.
£488,000
Modelled from EPC, postcode comparables and a sale-price growth of -0.4% per year over 18 years.
£400,000
Growth on file: -0.4% per year over 18 years.
Sales timeline
18 July 2024Most recent
£400,000
-7.0%over 17 years12 December 2006
£430,000
Median price across the last 5 sales in NP25 3EA: £280,000 (2021–2006).
Everything we know about The Coach 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

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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.