British man, 18, dies after falling from Sydney high rise apartment balcony where he lived after a night of drinking

A British teenager has died after falling from the balcony of a high-rise apartment in Sydney following a night of drinking.

The victim was identified as an 18-year-old man who had recently moved into the inner-city apartment.

He plummeted to his death from a 16th floor balcony at Saunders Street in Pyrmont, about 3.30am on Saturday.

The spokeswoman said a full post-mortem was needed to determine if he was intoxicated.

She later confirmed the dead man lived in the unit and was a British national, adding his fall was unrelated to a noise complaint police received on Friday night.

A friend of the deceased teenager was filmed by Seven News clearly in shock with his head in his hands.

A resident of the apartment complex Paul Rowlatt said he went outside after the tragedy.

'I heard a huge thud. I came down and this girl so, "Oh, someone's fallen out of the window",' he told Seven News.

A neighbour said he heard a loud noise before finding the man's body outside.

'I heard the thud and thought someone had thrown a TV out of the window or something,' he said.