Tottenham Hotspur's new stadium continues apace with building work starting on the top tier terracing.

Spurs updated their fans on the progress of the new White Hart Lane project on Twitter. The stadium's steel upper now extends into the west stand and the first terracing units have been installed in the new north upper tier.

That third upper tier will be something brand new for Spurs fans. White Hart Lane's 36,000 capacity is housed in two tiers of seating.

Tottenham Hotspur's new stadium continues apace with building work starting on the top tier

The first terracing units have been installed on the top tier, providing an all new vantage point

Despite building work progressing the club's plans for where they will play their home games next season are still unclear.

Spurs' temporary move to Wembley next season is in doubt after chairman Daniel Levy admitted that they are still to decide whether they will move out of the Lane in May.

It had been expected that Tottenham would play their home games at Wembley in the 2017-18 campaign.

This plan appeared to move a step closer after Brent Council approved a planning application that would allow Tottenham to play full capacity matches at the stadium last month.

Work continues at Tottenham's new stadium, on the same site as their White Hart Lane home

Spurs were expected to play their home games at Wembley next season, but could still stay

The new Tottenham stadium will house 60,000 fans and is due to open in the summer of 2018

The club's overall vision has been to move out of White Hart Lane in May, play home matches at Wembley and then move into their £800m, 61,000-seater stadium for the 2018-19. This remains the overriding intention.

However, with less than two months remaining of the current season, supporters and players are still to receive confirmation as to where Tottenham will be playing next season and Levy admitted the club could do one more year at White Hart Lane.

This is due to the club seeking 'greater certainty' that the new stadium will be delivered in time for the 2018-19 season.

Levy said: 'While everyone is eager to know if this is our last season at the Lane, we shall only make the decision to decommission our historic White Hart Lane when we have greater certainty on the delivery of the new stadium.'

Tottenham's new stadium is set to dominate the local skyline in north London

Chairman Daniel Levy has refused to rule out the club staying at White Hart Lane next season

A decision had been expected by the end of March and sources at the Football Association had insisted the deadline for the decision was March 31. A deal has now been struck giving Spurs until April 30 to monitor construction of their new ground before deciding on whether to decommission White Hart Lane.

An alternative would be for the club to stay at White Hart Lane next season, play home games at Wembley the following season in 2018-19 before eventually moving into their new stadium in time for for the 2019-20 season.

In a recent meeting with the Tottenham's supporters trust, Levy admitted that some parts of the construction are behind but also insisted some elements are ahead of schedule.

Spurs have yet to officially take up their option to play home games at Wembley next season

The club are determined to spend only one season away from their home and are therefore keen to take the decision as late as possible in order to be certain it is the correct decision.

Tottenham are wary that a decision should be taken over the next month because if it is to be their last season at the Lane, they also want to allow supporters to bid farewell to the stadium in the appropriate manner.

The club's last Premier League home match is at home to Manchester United, with the new TV schedule confirming that will take place on Sunday, May 14 in a 4.30pm kick-off. Plans over a commemorative documentary and a special programme have already been commissioned.