Some 18 months later, on 21 February 1664, John Bedford, the Rector of Gerrans in the Roseland, preached the first sermon at the church and on 22 August 1665 it was consecrated.

At the end of the war his heir, later Charles II, fled into exile via Pendennis Castle, a mile or so from where the church now stands, and planned to build "a chapel for public worship ... and when the wars ceased, to send an able and conscientious chaplain to preach God's word therein".

Owing partly, perhaps, to his diplomatic dedication of his new church to the King's martyred father, Sir Peter succeeded in modifying the royal vow and "received much help... through the generosity of Charles II and the Duke of York, and the liberal contributions of diverse honourable and worthy persons".

However the members of various Nonconformist sects were very unwilling to pay the rate and they were a large part of the population in the late 17th century; later rectors were "glad to make arrangements for its final extinction".

The three pitched roofs and the galleries were removed and the walls were raised to allow three new barred ceilings with ornamental plaster-work to be installed.

[citation needed] Charles Henderson observed in 1925: "It is interesting for its curious mixture of the Gothic and Classical styles.

The church was much improved during his time: there were new vestries, a north porch, stained east window and a new reredos and pulpit.

Coope was supported by the newly formed English Church Union and the Archdeacon who had planned legal action did not proceed.

The new organ had fifteen stops and a swell manual enclosed in a box with 'Nag Head' shutters (a recent innovation of the time) and also a short compassed pedal department.

In 1910, £120 was spent on some tonal alterations made by Hele & Co; a Posaune reed stop (a typical Edwardian measure) and Small Open Diapason were added and the two original mixtures were removed from the Great and the Swell.

[citation needed] By the 1970s the organ had deteriorated to such an extent that it was becoming unplayable and in January 1978, Lance Foy of Truro started work on a new instrument.

In 1993, the organ was rebuilt again by Lance Foy, with various tonal improvements including the provision of a 16’ 8’ and 4’ Ophicleide and Trumpet unit, new upper work to the Great and Choir organs, the addition of a 4’ Flute, Oboe 8’ and Vox Humana 8’, a refurbished console and a new piston capture system.