The UK Planning Inspectorate has accepted for examination Ørsted's application for the Hornsea Project Three Development Consent Order (DCO).
The application covers the generation and transmission assets, both offshore and onshore.
Ørsted is proposing to build the 2.4GW Hornsea Project Three wind farm more than 120 kilometres off the north Norfolk coast.
The wind farm will comprise up to 300 turbines and if built to full capacity could power the average daily needs of over 2 million UK homes.
If the DCO application is successful, the project is expected to enter the construction phase in 2020 at the earliest.