St. Eugene's Convent School, Francis Street, Londonderry, County Londonderry, BT48 7DS

St. Eugene's Convent School is a two-storey, nine-bay Gothic schoolhouse on Francis Street, Londonderry, originally constructed in 1852–54 for the Christian Brothers. The building is constructed of rough-coursed squared local Derry schist with Barony Glen sandstone dressings and a chamfered projecting base. The 1898 extension, which added gabled projecting bays at each end of the building, was designed by the prominent local architect Edward J. Toye (1857–1932). The listing covers the school building itself together with its associated railings and walling.

The front elevation faces east onto Francis Street. A projecting central bay contains a pointed arch entrance doorway with hood-moulding and label stops, flanked by small trefoil pointed arch niches on either side, all set within a breakfront. Above the entrance, paired pointed arch windows are set at first-floor level beneath a hipped slate roof with trefoil vents to each side, and the whole is topped by a cupola. A sandstone string course runs between the ground and first floors, and again at sill level on the first floors of the projecting bays. To either side of the central bay, three square-headed windows are arranged on both ground and first floors, with a cast-iron conservation rooflight to the main slate roof. The gabled end bays, which form the 1898 extension, have square-headed triple-light windows on the ground floor and twin lancet windows with oculus plate tracery on the first floor. The gable walls of these projecting bays rise above the roofline, with stone coping, kneeler stones to the eaves, mid-ridge and apex, and a metal finial at the apse end.

The west elevation faces onto the school playground. The projecting gabled end bays repeat the fenestration and window detailing of the east elevation. The projecting central bay on this side has a pointed arch entrance doorway flanked by sidelights, with hood-moulding and label stops. At first-floor level there is a sill course and paired pointed arch windows with hood-moulding and label stops. Above these sits a circular plate tracery stained glass window, also with hood-moulding and label stops, featuring eight small quatrefoil cusps surrounding seven cusps at the centre. The gable walls of the projecting bays extend above the roofline with stone coping and kneeler stones to the eaves, mid-ridge and apex, with a carved stone cross finial at the apse end of the central bay.

The north elevation is three bays wide, with square-headed casement windows on both ground and first floors. A sill course runs at first-floor level. A fire door is positioned at the west end on both floors, served by an external metal fire escape staircase. A stone cornice to the eaves is supported by stone corbels, with a cupola centred on the mid-ridge above. The south elevation repeats the fenestration and window style of the north elevation.

The pitched slate roof is finished with decorative two-hole crested ridge tiles alternating with roll-top ridge tiles. Three corniced sandstone chimneystacks are centred on the ridge of the main roof and fitted with clay pots. Rainwater goods are cast iron. Windows are timber casements and doors are timber panelled. A plaque installed above the entrance at the time of the 1898 works reads: ST EUGENE'S CATHEDRAL / CONVENT / PUBLIC ELEMENTARY SCHOOL'S / 1898.

Despite the loss of its original windows, the interior of the school is largely intact. The building is well proportioned and retains considerable architectural interest.

The school occupies a triangular site on the eastern boundary of the grounds of St. Eugene's Cathedral, sitting behind railings onto the pavement of Francis Street, with the rear of the school facing onto a tarmacadam schoolyard. It forms part of a significant group of buildings on a prominent site to the north of the city, south of Brooke Park, with roads forming the boundaries of the cathedral complex on all sides. The materials and detailing of the school are complementary to the three other buildings in the group: the cathedral, the parochial house, and the gate lodge. Toye was also responsible for the adjoining gate lodge, the spire at St. Eugene's Cathedral, and the wings at St. Columb's College.

Historically, the building was originally constructed for the Christian Brothers but was taken over almost immediately upon completion in 1854 by the Sisters of Mercy, who had been invited to Derry in 1848 by Bishop Edward McGinn. The Sisters had previously operated an all-girls school from their Convent of Mercy on Pump Street, before moving to the Brow-of-the-Hill in 1850. Their school there having outgrown its premises, the Sisters and the Christian Brothers exchanged buildings in 1854, with the Brothers relocating to the Brow-of-the-Hill school in the Bogside. The building was included in Griffith's Valuation of 1856, which described it as a national schoolhouse valued at £50. Ulster Town Directories record that classes at the National Female School at St. Eugene's were predominantly taught by the Sisters of Mercy, who were partially aided by monitresses. Following the 1898 extension works, the rateable value of the school was increased to £77. A two-storey infants' school on the opposite side of Francis Street was constructed in 1914 to provide additional accommodation. The rateable value of the original convent school was raised to £260 under the First Revaluation of 1935, and further to £384 by the close of the Second Revaluation in 1972. The former convent school was listed in 1979, and since 1991 the two school buildings have been collectively known as St. Eugene's Primary School. The building lies within a conservation area.