If rental yields form a crucial part of your property investment strategy in 2017, look no further than the North West of England, according to Rightmove.

The property website suggests that buy-to-let investors planning to expand their portfolio this year and looking for the best yields should consider places like Merseyside and Lancashire where near double-digit rental returns are typically available.

Bootle in Merseyside currently offers a yield of 9.3%, Birkenhead is 7.5% and in Lancashire Burnley’s yield is 7.2%, while Accrington is 7.1%, Rightmove said.

The top locations when it comes to demand from tenants searching for property on Rightmove is also currently dominated by the north, including Ashton-Under-Lyne and Oldham in Greater Manchester, and Stockport in Cheshire.

In London, more affordable areas such as Rainham, Bexleyheath and Erith came top as tenants looked for better value in outer London.

“Investors looking for the strongest yields could consider investing in certain areas in the North West where both demand and yields are high,” said Sam Mitchell, Rightmove’s head of lettings.

She continued: “Those with a number of properties in the capital may find that tenants are more price sensitive, so setting realistic rent levels will be the key to avoiding void periods.”