25A St Mary Street, Monmouth, NP25 3DB is a freehold semi-detached property built before 1900. The property offers approximately 1,152 square feet of living space. In this location, properties of similar size usually have four bedrooms.

The estimated current market value of the property is £409,737 , which equates to approximately £356 per square foot. It was last sold on 14 Jun 2017 for £270,000. Since then, the value has increased by £139,737, representing a 51.8% increase, or approximately 6.1% per year.

The current estimated value of £409,737 is:

  • 39.1% higher than the average property price on St Mary Street
  • 4.5% lower than the average in the NP25 3DB postcode area
  • and 24.3% higher than the average price for Monmouth as a whole

Based on EPC inspection history, this property has been mostly owner-occupied (2 out of 3 inspections). This suggests the property has typically been lived in by its owners, which often reflects longer-term residency and more consistent maintenance.

At the most recent EPC inspection on 9 June 2025, the property was recorded as rented.

View sold house prices in NP25 3DB

Building approximate location

About Property

Type
Semi-Detached House
Built
before 1900
Interior Size
1152 sq ft
Tenure
Freehold
Price (estimate)
£409,737
Price Per sq ft (estimate)
£356
Bedroom Count (estimate)
4 bedrooms

EPC Summary

25A St Mary Street, Monmouth, Gwent, NP25 3DB has an Energy Performance Certificate (EPC) rating of E, based on the latest assessment carried out on 9 Jun 2025.

This property uses a gas-fired boiler and radiators, connected to the mains gas supply, as its main heating source. Hot water is provided from main heating system. The windows have some double glazing.

The previous EPC assessment was conducted on 13 Nov 2013. The rating of E remains the same, but the energy efficiency score improved by 12.8%.

Since the previous assessment, several changes were observed:

  • The roof construction or insulation changed from pitched, limited insulation (assumed) to roof room(s), no insulation (assumed), changing energy efficiency from poor to very poor.
  • The wall construction or insulation changed from granite or whinstone, as built, no insulation (assumed) to sandstone or limestone, as built, no insulation (assumed), with no change in energy efficiency (very poor).
  • The lighting was changed from low energy lighting in 80% of fixed outlets to low energy lighting in all fixed outlets, with no change in efficiency (very good).
Heating Type
Boiler and radiators, mains gas
Good
Hot Water
From main system
Good
Roof
Roof room(s), no insulation (assumed)
Very Poor
Walls
Sandstone or limestone, as built, no insulation (assumed)
Very Poor
Windows
Some double glazing
Very Poor
Lighting
Low energy lighting in all fixed outlets
Very Good

Compared to NP25 3DB

8 th / 21
Price Rank
5% lower than average
4 th / 10
Size Rank
7% smaller than average
3 rd / 10
Price Per Sq FT Rank
3% higher than average

Compared to other properties in NP25 3DB , this house's estimated value ranks 8th out of 21. Based on price per square foot, it ranks 3rd out of 10 properties. This suggests a relatively high price per square foot, which may reflect quality, location, or recent upgrades. In terms of size, this home ranks 4th out of 10 properties in its postcode area.

Sale History

Today
£409,737
streetscan.co.uk estimate
+52 %
14 Jun 2017
£270,000
Leasehold
+162.1 %
26 Oct 1998
£103,000
Leasehold
+49.3 %
30 Mar 1995
£69,000
Leasehold

Area Insights

Nearby Properties

21 St Mary Street, Monmouth, NP25 3DB
rooms: 8
size: 2239 sq ft
sale price: £825,000
sale date: 14 Nov 2022
30 St Mary Street, Monmouth, NP25 3DB
rooms: 7
size: 2519 sq ft
sale price: £719,200
sale date: 4 Oct 2021
15 St Mary Street, Monmouth, NP25 3DB
rooms: 5
size: 1109 sq ft
sale price: £390,000
sale date: 1 May 2018
11A St Mary Street, Monmouth, NP25 3DB
rooms: 3
size: 678 sq ft
sale price: £146,000
sale date: 4 May 2016
8 St Mary Street, Monmouth, NP25 3DB
rooms: 4
size: 657 sq ft
sale price: £182,500
sale date: 10 Aug 2022

Data Sources

The property at 25A St Mary Street, Monmouth, NP25 3DB appears three times in the Land Registry records, with the latest transaction recorded on 14 Jun 2017. It also has three Energy Performance Certificates (EPC) entries, the earliest dating back to 9 Jun 2025. We use this data, to estimate the property's characteristics and current market value.

This website uses public sector information from:

These datasets are licensed under the Open Government Licence v3.0.
This website is not affiliated with or endorsed by HM Land Registry or DLUHC.


Disclaimer: StreetScan.co.uk makes all reasonable efforts to ensure the information provided on this website is current and accurate; however, no warranties or representations are made as to its completeness or accuracy. StreetScan.co.uk expressly disclaims any and all liability for any loss, damage, or expense arising directly or indirectly from the use of, or reliance upon, such information.
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