A brand new park pavilion which cost the council nearly £1million will not open until March 2009, despite being built more than 18 months ago.
The changing rooms and café facility, located at the south end of Gladstone Park, has lain idle for over a year-and-a-half, prompting critics to ask questions over the local authority's lack of planning.
A number of sports teams and clubs had planned to use the building when playing on five football, cricket and rugby pitches that are being laid in the park.
But drainage problems have meant the pitches will not be ready until next year, forcing the pavilion's doors to remain locked.
Jack Sayers, from Howard Road, in Cricklewood, said the situation was scandalous.
"It has been a waste of time and money.
"The area is currently a public open space, which all residents have access to, so when the pitches are finished its use will be restricted and the council will charge for people to play there.
"The changing rooms were finished in February last year, but the pitches were not even started on until November.
"It is out of character with the area, lit up at night wasting electricity and tax payers money and is a sitting target for vandals."
£1.2 million is being invested in sports facilities in the park after the council secured grants from a number of charitable organisations.
Town hall chiefs have defended the move, saying the pavilion, which will have a capacity for six teams, had to be built first because of the structure of the funding.
A council spokeswoman said: "Ideally all of the funding would have been available at the start of the project so that both the pavilion and sports pitches could open about the same time.
"But the council secured funding for the sports pavilion first and had to use it within a specific time frame or loose it all.
"It made sense to build the most expensive part of the project first, as there was no point having pitches fit for competitive sport without a place for clubs and other users to get changed."
According to the local authority, park wardens and mobile patrols regularly check the pavilion to stop it being vandalised.
But Mr Sayers says the whole saga has been unacceptable.
He added: "There has been no proper planning or joined up thinking.
"The park hasn't even got a proper public toilet."