Fort Widley

Fort Widley is a mid-19th-century fort, designed around 1860 by Captain William Crossman of the Royal Engineers. Built in red brick in English bond with flint and stone dressings, its roofs are concealed beneath earth. The fort forms part of Palmerston's defensive scheme, constructed in anticipation of conflict with France.

The fort follows a massive polygonal trace plan, surrounded on three sides by a wide dry moat with scarp and counterscarp walls of flint set between brick piers featuring round relieving arches. Extensive earthworks support ramparts equipped with gun emplacements and expense magazines. A brick caponier with embrasures projects into the rear-facing (northern) moat at its centre, west, and east corners. An underground gallery runs through the chalk from the centre of the barrack block to an underground magazine, from which a spiral staircase with ammunition hoist rises to parade level. From this staircase, three underground galleries connect to the centre caponier and the west and east mortar batteries.

The main barracks block is two storeys with thirteen bays, while the stable block is single-storey with fourteen bays. Both are positioned on the elevation facing Portsdown Hill road. The two principal entrances flank the barrack block, approached by inclined roads to a high level. Each entrance is set within a thick brick curtain wall in Norman style, with a stone round arch and moulded dripstone featuring dropped bosses engraved with Crown and VR insignia. Flanking attached stone columns have scalloped capitals and bases. Adjacent to these openings are stepped and splayed embrasures beneath flat stone arches.

To the right of the right entrance stands a single-storey guardhouse and stores block with four small paired 9-pane metal casements set under gauged brick segmental arches. Beyond this are four wide openings under flat stone arches, fitted with 20th-century metal shutters and a stone-coped brick parapet. Further right, seven similar openings sit within a projecting slated lean-to wing.

At the centre, the barrack block's lower road level is flanked by projecting wings. The central section of nine bays has ground-floor window openings blinded with brickwork. First-floor windows include groups of three windows in bays 1, 3, 4, 6, 7, and 9, each comprising two 8-pane 2-leaf recessed casements with rounded brick jambs under flat stone lintels and stone sills. Single casements appear in bay 2 and on the right, with larger 4-pane casements in other locations; windows in bays 3 and 8 sit under gauged brick segmental arches. Bays 5 and 8 feature similar paired casements. A rounded stone band and brick parapet with stone coping runs across, with embrasures at centre and left and right flanks. Each projecting flanking wing splays inwards across 2 bays, with paired recessed 4-pane casements on each floor under flat stone arches. The inward returns are 2 bays wide, each with three grouped windows similar to the centre section. Rear entrances to the barrack block comprise four 2-leaf boarded doors with overlights on each floor, accessed by stone steps to the dry moat area and concrete bridges over the moat to the upper level.

To the left of the left (west) entrance is a single-storey stable block, converted around 1913. Each bay has paired casements under gauged brick segmental arches: from left, four 9-pane wood casements, ten 12-pane wood casements, two 9-pane metal casements, two 12-pane wood casements, and ten 9-pane metal casements. A stone-coped brick parapet runs along the elevation, splaying down to the scarp wall at the far left.

The interior retains most of its original features, including fireplaces, joinery, and stable partitions. The fort is a Scheduled Ancient Monument.