Energy Performance Certificate
23, South Ley
AL7 4JP
WELWYN GARDEN CITY
Current
D
62
Potential
C
78
At a Glance
About This Property
This semi-detached house is located in WELWYN GARDEN CITY, AL7 4JP. The property offers 88m² (947 sq ft) of good-sized living space with 4 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. With recommended improvements, it could achieve a C rating (78/100). The gas central heating system has good efficiency, indicating a relatively modern, well-maintained boiler. The pitched roof lacks adequate insulation. Topping up loft insulation to 270mm (the recommended depth) typically costs £300-£500 and could save £150-£250 annually, with the investment often paying for itself within 2-3 years. 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 £932, comprising £753 for heating, £120 for hot water, and £59 for lighting. The property produces 4.3 tonnes of CO2 per year, which is moderate for a UK home.
How Does 23, South Ley Compare?
With an energy efficiency score of 62/100, this WELWYN GARDEN CITY property is around the national average for UK homes. Annual energy costs of £932 are approximately £868 below the UK average of £1800, representing significant savings. The 88m² floor area is above the UK average of 87m². At 4.3 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 AL7 postcode district.
How This Property Compares
vs UK Average
vs WELWYN GARDEN CITY
vs AL7
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: £363/year more than the WELWYN GARDEN CITY average
Energy Efficiency Rating
📊 Official EPC Register DataCurrent Rating
Potential Rating
With recommended improvements
Based on assessment dated 3 Aug 2017
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Property Information
Full Address
23, South Ley
AL7 4JP
WELWYN GARDEN CITY
Property Type
House
Semi-Detached
Construction Age
England and Wales: 1950-1966
Floor Area
88.0 m²
4.0 total rooms
4.0 heated
Tenure
owner-occupied
Efficiency Score
62 / 100
Potential: 78
CO₂ Emissions
4.3 tonnes/year
49 kg/m²
Energy Consumption
275 kWh/m²/year
Last Inspected
3 Aug 2017
none of the above
About WELWYN GARDEN CITY
WELWYN GARDEN CITY is situated in Hertfordshire, East of England. Properties in WELWYN GARDEN CITY have an average EPC rating of D (score 65/100). The AL7 postcode district contains over 13600 registered properties. Built during the mid-20th century suburban expansion, this property reflects the housing developments common to the WELWYN GARDEN CITY area.
Location & Nearby Area
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Annual Energy Costs
Heating
Boiler and radiators, mains gas
£753.0/yr
Save £114/yr
Hot Water
£120.0/yr
Save £43/yr
Lighting
100.0% low energy
£59.0/yr
Building Elements
Walls
Cavity wall, filled cavity
Roof
Pitched, no insulation (assumed)
Windows
Fully double glazed
Floor
Solid, 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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£13,570 over 10 years
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£13,570 over 10 years
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Loft Insulation
Your roof is rated Very Poor. Top up to 270mm for best results.
Solar Panels + Battery
Your house is ideal for solar. OVO: UK's #1 green energy supplier.
Air Source Heat Pump
Ultra-efficient heating with £7,500 government grant. OVO: MCS certified installation.
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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
Creswick Primary & Nursery School
PrimaryLast inspected: Dec 2022
Our Lady Catholic Primary School
PrimaryLast inspected: Oct 2021
Holwell Primary School
PrimaryLast inspected: Jan 2023
Peartree Primary School
PrimarySwallow Dell Primary and Nursery School
PrimaryLast inspected: Mar 2023
Commonswood Primary & Nursery School
PrimaryLast inspected: Jan 2023
Stanborough School
SecondaryLast inspected: Jan 2023
The Ryde School
PrimaryLast inspected: Mar 2018
About 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: 500 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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Area Safety
The surrounding area (1-mile radius) experiences higher crime levels
Most Common Incidents
April 2026violent crime
69 incidents (36%)
Anti-social behaviour
45 incidents (24%)
Criminal damage
18 incidents (9%)
Theft
11 incidents (6%)
Shoplifting
9 incidents (5%)
About this data: Crime statistics show incidents reported during April 2026 within a 1-mile radius. Data from Police.uk, updated monthly.
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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.
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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.