Energy Performance Certificate
4, Rainbow Close, Redbourn
AL3 7LF
ST. ALBANS
Current
C
77
Potential
B
81
At a Glance
About This Property
This detached flat is located in ST. ALBANS, AL3 7LF. The property offers 52m² (560 sq ft) of modest-sized living space with 2 habitable rooms. It is a recently constructed modern home. The property holds an EPC rating of C (77/100), meeting the government's target standard for energy efficiency. With recommended improvements, it could achieve a B rating (81/100). The property uses electric storage heaters, which charge overnight on cheaper electricity tariffs. While having low installation costs, running costs are typically higher than gas central heating. A heat pump could reduce electricity use by 60-70%. The walls feature cavity wall insulation with good efficiency ratings, providing solid thermal performance. The loft insulation is rated very good, meeting or exceeding the recommended 270mm depth for optimal thermal performance. Double glazing is installed throughout the property, providing good thermal and acoustic insulation. Estimated annual energy costs are £310, comprising £152 for heating, £130 for hot water, and £28 for lighting. The property produces 1.8 tonnes of CO2 per year, which is very low for a UK home.
How Does 4, Rainbow Close Compare?
With an energy efficiency score of 77/100, this ST. ALBANS property is above average, performing better than 60% of UK properties. Annual energy costs of £310 are approximately £1490 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. CO2 emissions of 1.8 tonnes/year are less than half the UK household average, making this an environmentally friendly choice.
Data source: Comparisons based on UK national statistics from the Department for Energy Security and Net Zero.This property is located in the AL3 postcode district.
How This Property Compares
vs UK Average
vs ST. ALBANS
vs AL3
National Ranking: With an EPC score of 77/100, this property is good and performs better than approximately 60% of UK homes for energy efficiency.
Top 40% nationally
Energy Costs: £437/year less than the ST. ALBANS average
Energy Efficiency Rating
📊 Official EPC Register DataCurrent Rating
Potential Rating
With recommended improvements
Based on assessment dated 23 Mar 2010
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Property Information
Full Address
4, Rainbow Close
Redbourn
AL3 7LF
ST. ALBANS
Property Type
Flat
Detached
Construction Age
England and Wales: 2007 onwards
Floor Area
52.0 m²
2.0 total rooms
2.0 heated
Tenure
owner-occupied
Efficiency Score
77 / 100
Potential: 81
CO₂ Emissions
1.8 tonnes/year
42 kg/m²
Energy Consumption
277 kWh/m²/year
Last Inspected
23 Mar 2010
marketed sale
About ST. ALBANS
ST. ALBANS is situated in Hertfordshire, East of England. Properties in ST. ALBANS have an average EPC rating of D (score 62/100). This property performs better than most homes in the area. Heating costs are £595 below the ST. ALBANS average, offering good value. The AL3 postcode district contains over 9200 registered properties. As a modern build, this property benefits from contemporary construction standards and improved energy efficiency requirements.
Location & Nearby Area
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Annual Energy Costs
Heating
Electric storage heaters
£152.0/yr
Save £15/yr
Hot Water
£130.0/yr
Save £23/yr
Lighting
100.0% low energy
£28.0/yr
Building Elements
Walls
Cavity wall, as built, insulated (assumed)
Roof
Pitched, 300+ mm loft insulation
Windows
Fully double glazed
Floor
(other premises below)
Heating System
Electric storage heaters
Main Fuel
electricity - this is for backwards compatibility only and should not be used
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
Redbourn Primary School
PrimaryLast inspected: Oct 2022
Flamstead Village School
PrimaryLast inspected: Jun 2023
Brockswood Primary School
PrimaryLast inspected: May 2015
Roundwood Park School
SecondaryRoundwood Primary School
PrimaryLast inspected: Oct 2021
Holtsmere End Junior School
PrimaryLast inspected: May 2023
Wood End School
PrimaryLast inspected: Nov 2008
Holtsmere End Infant and Nursery School
PrimaryLast inspected: Apr 2022
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: 388 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.