The following text is from the original listed building designation:
RAMSGATE, BOUNDARY ROAD
TR 3865 SW (north side)
9/62 Gas works, offices with railed area, depot and adjoin-ing walls and gate GVII Gas works offices and depot with walls. Late C19. Red brick and cream- coloured terracotta, with plain tiled roof. Two storeys and basement with moulded string course, cornice and parapet, with parapet gables and stacks to end left and to end right. Central projecting porch with octagonal turret and leaded ogee dome. Five light mullioned and transomed window to left, with coupled 2 light windows below, and large stair window, of 3 lights, the ground floor base sloping with the stairline. Five light to right with 2 dividing panels, and picture window with top lights on ground floor. Top storey of turret with label surround to door to balcony and gantry with ornate wrought iron scrolled bracket-rails to large clock. Two sashes in chamfered reveals on 1st floor, and double half-glazed doors on ground floor, with rectangular fanlight in moulded Gibbs-style surround, with ornate coat of arms in semi-circular panel over (part of the arches and pendentives which transform the rectangular ground floor porch to the semi-octagonal turret). Four moulded steps. All windows, door and decorative surrounds and details executed in terracotta. Large basement openings. Simple rails with scrolled uprights to steps and area. Depot building adjoining to right in brown brick with red brick details, of 2 storeys, with pedimented gable with roundel, on 3 pilaster-buttresses. Two wooden casements on 1st floor 2 semi-circular headed openings ground floor. Right return (long side) and rear, whitewashed with irregular openings. Wall to left (west) about 12 feet high, on plinth, with capped decorative pilaster (in same style as depot building buttresses) and coping. Stepped up 4 times to gateway, with simple iron gate and gate pier to west. Wall returned to adjoin main block with passageway entrance.
Listing NGR: TR3833565457

Gas works in two locations either side of Boundary Road, first visible on the Ordnance Survey 1877 edition [1]. The S site was seen to have been developed upon, but the N site was still visible on the Ordnance Survey 1898 edition [2] and the 1908 edition [3]. The N site was no longer visible on the Ordnance Survey 1938 edition [4] or on OS MasterMap dating to 2009 [5]. It was given a monument polygon during historic mapping enhancement as part of Phase 1 of the South East Rapid Coastal Zone Assessment Survey.

The office building at the site was built between 1896-1907. The existing workhop building was constructed at some point between 1927-1939. This structure has since undergone a number of alterations, including replacement of the roof. Both buildings were extended and invested in during the 1970s, resulting in a number of alterations to both structures. The town crest is located on the office building at the site.
A wall to the south of the is thought to represent part of the earlier (late 19th century) gasworks at the site, potentially predating the office buildings at the site. (6)

Historic features still surviving at the site include the interior staircase with ironwork and a mosaic floor in the ground floor lobby. One stack of the original chimney pots remain on the exterior of the building, inspired by 16th and 17th century designs. The depot still contains some historical features including the original windows and part of the boundary wall. "Across the buildings the moulded string course remains as does octagonal turret and leaded ogee dome. The mullioned widows remain although the woodwork is in poor condition. Externally little has altered with the main building except for the modern 20th century extension" (from the original report, 7).

English Heritage, List of Buildings of Special Architectural or Historic Interest (Map). SKE16160.

<1> Ordnance Survey, 1862-1875, Ordnance Survey 1:2500 1st Edition : 1862-1875, 1877/1:2500 (Map). SWX11831.

<2> Ordnance Survey, 1893-7, Ordnance Survey 1:2500 2nd edition : 1893-1898, 1898/1:2500 (Map). SWX11832.

<3> Ordnance Survey, 1905-10, Ordnance Survey 1:2500 3rd edition: 1901-1912, 1908/1:2500 (Map). SWX11833.

<4> Ordnance Survey, 1928-1947, Ordnance Survey 1:2500 4th edition 1928-1947, 1938/1:2500 (Map). Ske12644.

<5> Ordnance Survey, 2009, OS MasterMap, MasterMap (Cartographic materials). SWX15710.

<6> Lee Evans Partnership, 2019, Heritage report on Ramsgate Gas Works Site (Unpublished document). SKE52755.

<7> Swale and Thames Archaeological Survey Company, 2022, Historic Building Recording Of The Old Gas Works, Boundary Road, Ramsgate, Kent (Unpublished document). SKE56725.