Energy Performance Certificate
25, Collier Close
DL15 9PU
CROOK
Current
D
62
Potential
D
65
At a Glance
About This Property
This semi-detached flat is located in CROOK, DL15 9PU. The property offers 52m² (560 sq ft) of modest-sized living space with 3 habitable rooms. It is a post-war property from the mid-20th century. With an EPC rating of D (62/100), this property is around the UK average for energy efficiency. The property has good loft insulation, though topping up to the recommended 270mm depth could provide additional energy savings. Double glazing is installed, though the efficiency rating suggests older units. Modern low-E double glazing can be up to 40% more efficient than units installed before 2002. Estimated annual energy costs are £753, comprising £499 for heating, £213 for hot water, and £41 for lighting. The property produces 3.3 tonnes of CO2 per year, which is low for a UK home. The property last sold in September 2017 for £37,000.
How Does 25, Collier Close Compare?
With an energy efficiency score of 62/100, this CROOK property is around the national average for UK homes. Annual energy costs of £753 are approximately £1047 below the UK average of £1800, representing significant savings. With 52m² of space, this is a more compact property compared to the UK average of 87m². At 3.3 tonnes of CO2 per year, emissions are below the UK average of 4.5 tonnes.
Data source: Comparisons based on UK national statistics from the Department for Energy Security and Net Zero.This property is located in the DL15 postcode district.
How This Property Compares
vs UK Average
vs CROOK
vs DL15
National Ranking: With an EPC score of 62/100, this property is average and performs better than approximately 45% of UK homes for energy efficiency.
Top 55% nationally
Energy Costs: £152/year less than the CROOK average
Energy Efficiency Rating
📊 Official EPC Register DataCurrent Rating
Potential Rating
Based on assessment dated 31 May 2016
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Property Information
Full Address
25, Collier Close
DL15 9PU
CROOK
Property Type
Flat
Semi-Detached
Construction Age
England and Wales: 1967-1975
Floor Area
52.0 m²
3.0 total rooms
3.0 heated
Tenure
owner-occupied
Efficiency Score
62 / 100
Potential: 65
CO₂ Emissions
3.3 tonnes/year
65 kg/m²
Energy Consumption
373 kWh/m²/year
Last Inspected
31 May 2016
marketed sale
About CROOK
CROOK is situated in County Durham, North East. Properties in CROOK have an average EPC rating of D (score 61/100). Heating costs are £406 below the CROOK average, offering good value. The DL15 postcode district contains over 8300 registered properties.
Location & Nearby Area
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Property Sale History
£37,000
8 September 2017
Type: Semi-Detached
Annual Energy Costs
Heating
Warm air, mains gas
£499.0/yr
Hot Water
£213.0/yr
Save £66/yr
Lighting
100.0% low energy
£41.0/yr
Building Elements
Walls
Cavity wall, filled cavity
Roof
Pitched, 270 mm loft insulation
Windows
Fully double glazed
Floor
(another dwelling below)
Heating System
Warm air, mains gas
Main Fuel
mains gas (not community)
Lighting
Low energy lighting in all fixed outlets
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📊 Compare with UK-Wide Property Data
See how this property compares to national averages. Explore energy efficiency trends, top-rated areas, and comprehensive UK property statistics.
View UK Property Insights →Nearby Schools
Within 3 miles of this property
Crook Primary School
PrimaryLast inspected: May 2023
Hartside Primary Academy
PrimaryLast inspected: Jun 2022
St Cuthbert's Catholic Primary School, Crook
PrimaryHowden-le-Wear Primary School
PrimarySunnybrow Primary School
PrimaryLast inspected: Feb 2023
Stanley (Crook) Primary School
PrimaryLast inspected: Feb 2019
Witton-le-Wear Primary School
PrimaryOur Lady and St Thomas Catholic Primary School, Willington
PrimaryAbout school ratings: Ofsted ratings range from Outstanding to Inadequate. These ratings are based on inspections of teaching quality, leadership, pupil behavior, and safety. Note that school catchment areas vary - check with the school or local council for admission details.
Data source: School information from Get Information About Schools (GIAS). Distances are approximate. Always verify school catchment areas directly with the school or local education authority.
Broadband & Connectivity
Average download speed: 165 Mbps
Download Speed
Upload Speed
Available Providers
What do these speeds mean? 10-30 Mbps: Good for browsing and streaming. 30-100 Mbps: Great for multiple users and HD streaming. 100-300 Mbps: Excellent for 4K streaming and gaming. 300+ Mbps: Perfect for large households and heavy internet use.
Data source: Broadband speeds are from Ofcom Connected Nations 2025 report (July 2025 release). Data shows typical speeds available in this postcode area. Actual speeds at this specific property may vary depending on line quality, distance from exchange, and chosen provider. Always verify availability with providers before committing.
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About this EPC: Energy Performance Certificates are valid for 10 years and are required when a property is built, sold, or rented. Learn more about EPCs or book an EPC assessment.
Cost estimates are approximate and actual savings may vary. Find local tradesmen to get accurate quotes for improvements.
Data Sources: This report contains public sector information licensed under the Open Government Licence v3.0.
Data from: UK Energy Performance Certificate Register, HM Land Registry Price Paid Data, and Police.uk crime statistics.