The four-door model will arrive next month.
The entry level SE model, complete with a petrol engine and manual transmission, will be priced from £19,395, while the top level EX diesel automatic will start at £27,120.
The 1.6 i-DTEC engine with a manual 'box, delivers up to 83.1 mpg, while producing just 91 g/km of CO2, meanwhile the diesel automatic returns up to 68.9 mpg and emits 108 g/km CO2.
The petrol version produces 107 g/km CO2 and 60.1 mpg for the CVT, with the manual emitting just 110 g/km CO2 and returning 58.9 mpg. Altogether that makes the new Civic four door saloon one of the cleanest cars in its class.
Trim levels will be the same as the popular hatchback Civic, with SE, SR and EX all available. The entry-level SE comes with Honda's Sensing safety suite, which includes collision mitigation braking system, forward collision warning, lane keep assist, lane departure warning, road departure mitigation, adaptive cruise control and traffic sign recognition. The petrol CVT and diesel automatic both come with low speed following too.
SR model adds rain sensing auto wipers, dual climate control air conditioning, parking sensors and Honda CONNECT (Apple CarPlay and Android Auto) and a rear parking camera. The EX trim further includes leather seats, smart entry and start, LED headlights with washers, LED fog lights, wireless phone charging and heated rear seats.
The car will be available on PCP deals, with buyer able to get their hands on the car for £259 a month on a three year, 10,000 mile contract on 5.9% APR for a 1.6 i-DTEC SR manual.
"The arrival of the four door variant now completes the line-up for the Civic family in the UK," said Phil Webb, Head of Car at Honda UK. "With the hatchback and the four door now available, we have a strong Civic range whether it’s a corporate or retail customer looking for a car."