Selling or Letting a Flat in London: Your EPC, Assessment Day and Marketing Package Guide
Flats have a few EPC quirks that houses do not. Shared entrances, leasehold structures and communal heating systems can affect an assessment. If you plan to sell or let a flat in London, it helps to prepare early.
You also need to know what to expect on assessment day. Choosing an EPC, photography and floor plan package can also help when you need to get your property listing live quickly.
This guide explains what flat owners should know before booking an assessor.
Do flats need their own EPC?
Yes. In almost all cases, each individual flat needs its own Energy Performance Certificate (EPC).
This applies to flats in converted buildings and purpose-built blocks. Leasehold buildings can raise additional questions about responsibility and shared areas.
Read our guide, EPC for Flats in London: What Owners Need to Know, if you are unsure whether your flat needs a new EPC.
Getting ready for assessment day
Your assessment can run more smoothly if you prepare beforehand.
Make sure the assessor can access the relevant meters and heating controls. Keep records of insulation improvements and other energy-efficiency upgrades nearby.
You may also need to provide access to communal areas in some blocks of flats.
Our full guide, How to Prepare for an EPC Assessment in London: A Practical Checklist, explains what to prepare before the assessor arrives.
Good preparation can reduce delays and avoid unnecessary follow-up questions.
Should you bundle the EPC with photography and a floor plan?
If you plan to market your flat after the EPC assessment, you can arrange several services together.
An EPC, professional photography and a floor plan can all support your property listing. Booking them together can also reduce the need for several separate appointments.
Our Property Marketing Package: EPC, Photography & Floor Plan explains how the service works and where it is available.
A floor plan can be especially useful for flats. It gives buyers and tenants a clear view of the layout. Photos then help show the condition and presentation of each room.
Why this matters more for flats
Flats can present a few additional considerations during an EPC assessment and property marketing process.
Leasehold buildings: You may need to clarify whether shared areas require a separate Commercial EPC. The residential EPC for your flat is a separate matter. See our guide, EPC for Flats: Who’s Responsible and How Are Shared Areas Assessed?.
MEES compliance: Landlords need to consider the Minimum Energy Efficiency Standards (MEES) when letting a property. Our landlord EPC requirements guide for Croydon explains the requirements and compliance considerations.
Property marketing: A floor plan can help buyers and tenants understand the layout of a flat. This can be particularly useful when a property has an unusual shape or several rooms. See our Balham SW12 property photography guide for more information about combining photography and floor plans.
Where we cover
We assess and photograph flats across:
Croydon (CR0, CR2), Thornton Heath (CR7), Mitcham (CR4), Clapham (SW4, SW9), Streatham (SW16), Tooting (SW17), Sutton (SM1, SM2, SM3), Surrey, and Central London (SW1, WC1, WC2, EC1–EC4, W1).
The legal basics
Most residential properties, including flats, need a valid EPC before owners market them for sale or rent in England and Wales.
You can check the official requirements through GOV.UK’s Energy Performance Certificate guidance.
Frequently Asked Questions
Does every flat in a block need a separate EPC?
Yes, in almost all cases. Each flat normally has its own EPC, even when several flats share the same building.
Some situations can have different requirements. Read our EPC for Flats guide for more information.
How long does an EPC assessment take for a flat?
A standard one or two-bedroom flat often takes around 20–40 minutes to assess.
The exact time can vary depending on the size, layout and features of the property.
Can I get the EPC, photos and floor plan done in one visit?
Yes. We regularly combine these services in one booking.
This can make the process easier when you need to market your flat quickly. A floor plan can also give potential buyers or tenants a clearer view of the property’s layout.
See our Property Marketing Package for more information.
What should I check before the assessor arrives?
Prepare the property before the appointment.
Make sure the assessor can access the relevant meters and heating systems. Keep details of insulation work and heating upgrades available.
If your flat is in a larger block, check whether the assessor needs access to any relevant communal areas.
Our assessment day checklist covers the preparation steps in more detail.
Ready to book?
Contact us to arrange your flat’s EPC.
Need your certificate quickly? Ask about our Same Day EPC service if you are working to a tight deadline.
