Energy Performance Certificate
21 Crozier Street
SR5 1DU
SUNDERLAND
Current
D
57
Potential
C
76
At a Glance
About This Property
This terraced flat is located in SUNDERLAND, SR5 1DU. The property offers 53m² (570 sq ft) of modest-sized living space with 3 habitable rooms. It is a characterful interwar or early 20th century home. With an EPC rating of D (57/100), this property is around the UK average for energy efficiency. With recommended improvements, it could achieve a C rating (76/100). The gas central heating system has good efficiency, indicating a relatively modern, well-maintained boiler. The solid walls lack insulation. Solid wall insulation (external or internal) typically costs £8,000-£14,000 but can reduce heat loss by up to 35% and improve your EPC rating by 1-2 bands. Double glazing is installed throughout the property, providing good thermal and acoustic insulation. Estimated annual energy costs are £820, comprising £692 for heating, £90 for hot water, and £38 for lighting. The property produces 3.6 tonnes of CO2 per year, which is low for a UK home.
How Does 21 Crozier Street Compare?
With an energy efficiency score of 57/100, this SUNDERLAND property is around the national average for UK homes. Annual energy costs of £820 are approximately £980 below the UK average of £1800, representing significant savings. With 53m² of space, this is a more compact property compared to the UK average of 87m². At 3.6 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 SR5 postcode district.
How This Property Compares
vs UK Average
vs SUNDERLAND
vs SR5
National Ranking: With an EPC score of 57/100, this property is average and performs better than approximately 45% of UK homes for energy efficiency.
Top 55% nationally
Energy Costs: £83/year more than the SUNDERLAND average
Energy Efficiency Rating
📊 Official EPC Register DataCurrent Rating
Potential Rating
With recommended improvements
Based on assessment dated 19 Sept 2016
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Property Information
Full Address
21 Crozier Street
SR5 1DU
SUNDERLAND
Property Type
Flat
End-Terrace
Construction Age
England and Wales: 1900-1929
Floor Area
53.0 m²
3.0 total rooms
3.0 heated
Tenure
owner-occupied
Efficiency Score
57 / 100
Potential: 76
CO₂ Emissions
3.6 tonnes/year
67 kg/m²
Energy Consumption
382 kWh/m²/year
Last Inspected
19 Sept 2016
marketed sale
About SUNDERLAND
SUNDERLAND is situated in Sunderland, North East. Properties in SUNDERLAND have an average EPC rating of D (score 62/100). The SR5 postcode district contains over 13200 registered properties.
Location & Nearby Area
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Annual Energy Costs
Heating
Boiler and radiators, mains gas
£692.0/yr
Save £390/yr
Hot Water
£90.0/yr
Lighting
100.0% low energy
£38/yr
Building Elements
Walls
Solid brick, as built, no insulation (assumed)
Roof
(another dwelling above)
Windows
Fully double glazed
Floor
Suspended, no insulation (assumed)
Heating System
Boiler and radiators, mains gas
Main Fuel
mains gas (not community)
Lighting
Low energy lighting in all fixed outlets
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Air Source Heat Pump
Ultra-efficient heating with £7,500 government grant. OVO: MCS certified installation.
External Wall Insulation
Your walls are rated Very Poor. External insulation can dramatically reduce heat loss.
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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 →Broadband & Connectivity
Average download speed: 69 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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Related Property Guides
Based on this property's characteristics, these guides might help you:
How to Improve Your EPC Rating →
Step-by-step guide to upgrading from D-G to A-C ratings. Learn which improvements offer the best value.
Air Source Heat Pumps vs Gas Boilers →
Complete cost comparison, government grants up to £7,500, and real running costs for 2025.
How Much Does a Low EPC Cost You? →
The financial impact of poor energy efficiency on resale value and running costs.
What is a Good EPC Rating? →
Understanding A-G ratings, what each means, and how UK properties compare.
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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.