Formby MP Bill Esterson said that now plans for a new convenience store for Liverpool Road had been given the go-ahead he will continue to fight to ensure that residents' concerns are addressed.
Local businesses and as many as 300 residents signed a petition opposing the conversion of the Lighthouse Pub into a convenience store.
But Sefton Planning Committee last week gave the green light to the plans.
Now, Formby's Labour MP is calling for the concerns of the residents and local businesses to be addressed.
Bill said: "Although the plans were approved the residents came up with some very real concerns which I would like to see tackled as part of the planning approval.
"I want to see the road safety issues addressed, the parking and security concerns all considered as part of the planning approval.
"I am pleased that as part of the approval the zebra crossing will be replaced with a puffin crossing, which should make the road much safer and tackle the issue of speeding vehicles.
"The developer also promised that security will be a priority."
While as many as 70 jobs will be created by the new development, Bill is still urging the local community to continue to support the existing local businesses.
Bill said: "The new jobs are good for the economy of Formby and Sefton as a whole, particularly at a time when so many people in Sefton are facing redundancy.
"But I fully understand the concerns of the existing businesses who fear for their futures and I would urge the local community to continue to support the local traders.
"Although the residents' campaign was ultimately unsuccessful and the plans were approved, the campaign was a success in terms of ensuring that the local concerns were seen as a priority and were addressed.
"I will continue to monitor the progress of the development to ensure that all of the concerns are tackled."