An EPC (Energy Performance Certificate) is a legal document that rates your property's energy efficiency on a scale from A (most efficient) to G (least efficient). In County Durham, you must have a valid EPC when selling or letting your property. It shows potential buyers or tenants how much energy your home uses and what it might cost to heat and power it. The certificate is valid for 10 years.

The average EPC rating in County Durham is D, which is fairly typical for the UK. However, around 60% of properties in the area fall below EPC rating C, meaning there's significant room for improvement. If your property is rated D or lower, you may want to consider energy-saving improvements to increase its value and appeal to buyers or tenants.

Many properties in County Durham date from the mid-20th century, and older homes typically have lower EPC ratings because they often lack modern insulation, have older heating systems, and feature single-glazed windows. These properties were built before current energy efficiency standards existed. The good news is that improvements like loft insulation—the most recommended upgrade in the area—can make a real difference to both your rating and your heating bills.

Loft insulation is the most commonly recommended improvement for County Durham properties and offers excellent value for money. It's relatively affordable, quick to install, and can significantly reduce heat loss. Other effective measures include cavity wall insulation, upgrading to a modern boiler, and installing double-glazed windows. Even small improvements can help you move from a D rating towards C or higher, making your property more attractive and valuable.

Yes, landlords in County Durham must have a valid EPC before letting a property. If your certificate has expired or you're letting for the first time, you'll need to arrange a new one. From April 2020, landlords also cannot let properties with an EPC rating below E, so if your property falls into this category, you'll need to make improvements. The EPC is a legal requirement and helps tenants understand the energy costs they can expect.