Click on photos to enlarge.
Notes in italics from Hampshire and the Isle of Wight by Nikolaus Pevsner and David Lloyd (1967)
Yale University Press, New Haven and London.

Pride of place must be given to the charming Victorian bell-turret with its glazed upper stage, below the spire (1884). ... 
Otherwise almost all early 13th century. The aisles have small lancets, but the walls are far too close to the arcade to be possible as original C13 work. The VCH (Victoria County History) suggests that they were rebuilt so tightly in the C17, and that the porch is C17 too. 

The arcades are of four bays, their piers round, octagonal, round. The arches have two slight chamfers and are pointed. All have dogtooth hood-moulds (much renewed). The capitals have trumpet-scallops or are moulded on the S side (first two pictures), but have rich crockets on the N side (second two pictures). So S is probably older than N. ... The NW respond, with a head, looks a little older than the rest.

The chancel arch corresponds the N arcade. The chancel has in its E wall three stepped lancets (roll-moulded inside). On the N it had a one-bay chapel of the same date. To the inside the blocked opening has a dogtooth hood-mould like the arcade.