Antiquities and Monuments Office

Requirements for Cartographic Survey of Historic Buildings

(As at Mar 2010)


A.        The following measured drawings are required showing the existing condition of the building:


(1)  Site plan showing the location of the buildings to 1:500 with key plan to 1:20,000.

            (2)       Floor plan(s) showing all structural walls, and original non-structural partitions and built-in fittings to 1:50.

            (3)       Floor plan(s) of the external areas showing any important features in the courtyard, garden or area adjoining the building to 1:50.

(4)              Roof Plan to 1:50.

            (5)       At least two cross-sections through the building sufficient to show the architectural characteristics of the building to 1:50.  The cross-sections have to be agreed with the Antiquities and Monuments Office (AMO).

            (6)       Elevation of each face of the building to 1:50

            (7)       Reflected Ceiling Plan to 1:50 showing the roof structure, number of joists, rafters and battens to the roof etc.

            (8)       Architectural details including but not limited to archways, doorways, porches, windows, beams, roof trusses, pediments, keystones, columns, paving, flooring, fireplaces, panelling, plaster decoration and ornamented features, mouldings, stairs, ramps chimneys, parapets, brick construction patterns, roof ridge decorations, column bases, lintels, boards, screen windows and doors, gable walls, bracket systems, eaves, steps, altars, any decorative feature and any other item of historical or conservation interest to scale 1:10 or 1:5 as appropriate together with location plans showing each architectural feature.  All the features should be numbered and listed on a cross-referenced checklist together with the reference number of their photographs (as recorded in the photographic survey) and their location plans and detailed drawings.

            (9)       Plan, elevation and cross section of any important fittings within the building, particularly relating to its commercial/industrial use, to appropriate scale.

            (10)     Construction details should be noted, such as type of brick bonding, joints in timbers, joints in granite features, etc, to scale 1:10 or 1:5 as appropriate.  The number of courses of brickwork or masonry work to each wall should also be recorded on the appropriate elevation plan(s).  This also applies to the detailed drawings of flooring, roof and truss system of the building, such as construction pattern of finish flooring to each floor, number of joists to each floor, rafters and battens to the roof, and etc.

            (11)    The number of courses of brickwork to each wall should be recorded on the appropriate elevation, similarly the number of joists to each floor, number of rafters and battens to the roof, etc.

            (12)     All the plans should have North point.


B.  Drawings should be annotated with descriptions of the building materials used in the construction of the principal elements, e.g. floors, roofs, stairs, windows, balconies, etc.


C.     THREE full sets of the cartographic drawings (in both hard and soft copies i.e. CD_ROM in .dwg & .dxf format) should be submitted to the AMO of Leisure and Cultural Services Department on or before the date specified by/ agreed with the AMO AND before any building work on the historic site is commenced.


D.    AMO shall share the copyright to use the cartographic survey record for exhibition, publication, research, web-publication and archive access by the public.