Early goals settled Brentford nerves and laid the platform for a 3-1 victory over Swansea City on Wednesday to seal a place in the English Championship play-off final.
Trailing 1-0 from the first leg of the semi-final, Brentford bossed the match from the start in their last fixture at Griffin Park - the club's home since 1904.
Ollie Watkins and Emiliano Marcondes scored in the opening quarter before Bryan Mbeumo added a third goal early in the second half.
Rhian Brewster pulled one back for Swansea 12 minutes from time to set up a nail-biting finish, but the hosts hung on to win 3-2 on aggregate and edge closer to a top-flight return for the first time in 73 years.
Next season their home will be the new 17,250-capacity Brentford Community Stadium.
Brentford now head to Wembley for Tuesday's Stg170million ($308m) showdown against either Cardiff City or, more likely, their west London neighbours Fulham who lead their semi-final tie 2-0.
The victory over Swansea was Brentford's first in 12 play-off matches.
They made the perfect start when leading scorer Watkins netted his 26th goal of the campaign, profiting from a perfect through-ball by the impressive Mathias Jensen.
The hosts were ahead in the tie inside 15 minutes as Marcondes drifted between the Swansea centre backs to head a pin-point Said Benrahma cross into the net.
Benrahma had an effort hit the post in a dominant first-half display from Thomas Frank's side, who moved further ahead within a minute of the second half.
Jensen released left back Rico Henry into space and his cross was volleyed into the net by Mbeumo with a sublime finish.
Swansea gave themselves a chance when Pontus Jansson's mistake allowed Brewster to chip David Raya in the home goal, but they could not find a second goal to level the tie.
Frank said his adrenaline had been going since the end of the previous leg.
"I am (delighted) because, first I was really proud of the players after the first leg against Swansea," he said.
"We were just on it. The way we played tonight, I honestly think we could have jumped on three, four nil and then of course we made mistakes - this is football this is why we love it.
"But we were just good today."