23 Thirlmere Street, Carlisle, CA2 4AP
About 23 Thirlmere Street
23 Thirlmere Street is a semi-detached house in Carlisle (CA2 4AP). It has a recorded floor area of 39 m² (around 420 sq ft), construction records dating it to 1950-1966 and council tax band A. At 39 m² this is the 3rd smallest of 16 units on EPC record in the building, where floor areas span 36–101 m². The building's EPC ratings span F to C, with this unit at the top. The latest certificate (December 2025) shows a C (score 70). The rating has held steady at C across 2 certificates since January 2010. Between certificates, hot-water efficiency went from Average to Good and main heating went from Average to Good; while window efficiency dropped from Average to Poor. This certificate was lodged in the last six months, so the rating reflects current condition.
At 39 m² it sits well below the postcode median (97 m² across 15 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 87% of similar EPCs).
Energy performance
23 Thirlmere Street's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency improved
More low energy lighting installed
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Planning history
23 Thirlmere Street has no planning applications on record.
A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.
Sales history & valuation
23 Thirlmere Street has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£120,000
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 CA2 4AP: £100,000 (2024–2021).
Nearby sales in CA2 4AP
Versus other Thirlmere Street homes
EPC Rating
70 (C)
Street avg 69 (C)
Floor Area
39 m²
Street avg 38 m²
CO₂ Emissions
1.4 t/year
Street avg 1.5 t/year
Habitable Rooms
2 rooms
Street avg 2 rooms
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
5/mo
Rising year-on-year across the wider district.
Nearest stop
1.0 km
Carlisle Rail Station — railway station.
Closest school
0.4 km
The Bishop Harvey Goodwin School (Church of England Voluntary Aided). 22 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
49.8dB

Night-time· 23:00 – 07:00
38.5dB







