Central Hong Kong corporate headquarters stone works
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Two IFC Corporate Headquarters, Central — Stone Works

21,000 ㎡ · Single-tower headquarters · Ceremony and efficiency in one

Project Overview

Project Overview

Two IFC corporate headquarters — 21,000 ㎡ of public-area stone confronting the three challenges unique to a single-tower HQ: bespoke brand image, cross-floor visual consistency and a sense of ceremony. HENGSHENG MARBLE S&T CO. LIMITED Stone delivered digitally in 14 months.

📍
Central, Hong Kong
Location
📐
21,000 ㎡
Stone Installed
📅
14 months
Delivery Period
💎
5
Stone Varieties
🏛️
SOM
Design Firm
🏢
52
Storeys
📏
±1.2 mm
Flatness Control
97%
Tenant Satisfaction
Corporate headquarters exterior
Two IFC · 52-storey single-tower headquarters

Design Concept · A Single-Tower Language of Ceremony and Efficiency

The single-tower headquarters is conceived as a "vertical corporate city": the lobby's 12-metre double-height Calacatta Gold feature wall sets the ceremonial tone, the typical floors and offices take Carrara White as their keynote for a productive working atmosphere, and the conference center and lift lobbies use contrasting Nero Marquina for depth — three principal stones forming a complete visual order from public areas to private offices within one tower.

HENGSHENG MARBLE S&T CO. LIMITED Stone supplied and installed all public-area stone: 21,000 ㎡ of walls and floors, 96 round columns and over 30,000 wall and floor pieces, all factory pre-assembled and numbered, five-axis CNC machined to ±0.5 mm; the entire delivery completed within 14 months.

Applications

HQ Main Entrance LobbyOffice LobbyLift LobbiesTypical-floor CorridorsBoardroomExecutive OfficesStaff CafeteriaBusiness LoungeCar Park LobbyRoof Garden
Materials

Stone Selection

Three principal stones cover every scenario of a single-tower headquarters, from public ceremony to productive work.

Calacatta Gold stoneMATERIAL 01
Calacatta Gold
🇮🇹 Italy · Carrara quarries
ApplicationHQ main lobby · BoardroomFinishBook-match + mirror polish · 20 mmStandard Sizes3200×1600 mm slabs
Gold-veined slabs for the 12-metre double-height HQ feature wall: 28 slabs from a single vein, numbered individually by veining direction, four-way book-matched so the pattern flows across joints like one continuous painting — the tower's most striking ceremonial stone. 7,200 ㎡ supplied.
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Carrara White stoneMATERIAL 02
Carrara White
🇮🇹 Italy · Carrara quarries
ApplicationTypical-floor corridors · Staff cafeteria · Executive officesFinishHoned · 12 mmStandard Sizes2800×1500 mm slabs
Quiet, fine light-grey veining that endures daily view; the honed finish softens light for productive work. 9,600 ㎡ supplied — the tower's highest-volume stone.
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Nero Marquina stoneMATERIAL 03
Nero Marquina
🇪🇸 Spain · Markina quarries
ApplicationLift lobbies · Conference center · HQ flooringFinishMirror polished · 20 mmStandard Sizes3000×1500 mm slabs
Black ground with white veining, sharply modern when mirror-polished; used on the column wraps of 24 lift lobbies and the conference-center feature wall. 4,200 ㎡ supplied.
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Construction

Construction Process

Six stages from 3D scanning to floor-by-floor handover — 21,000 ㎡ of single-tower works completed in 14 months.

01

3D Scanning

3D Scanning

360° laser scanning of all 52 floors produced millimetre-level point clouds, resolving 198 structural deviations in advance.

02

Digital Layout

Digital Layout

Every slab factory pre-assembled and numbered, with piece-by-piece installation drawings and floor-by-floor packing.

03

Factory Fabrication

Factory Fabrication

Five-axis CNC machined the curved panels for 96 round columns and over 30,000 wall and floor pieces to ±0.5 mm.

04

Numbered Packing

Numbered Packing

Packed floor by floor in reverse installation order, with shock-absorbing lining in wooden crates; zero breakage in city transport.

05

On-site Installation

On-site Installation

Vacuum-lifter hoisting combined with laser levelling kept the visual result perfectly consistent across floors.

06

Full-area Grinding

Full-area Grinding

Public areas ground and crystallised as one: flatness ±1.2 mm, gloss 90°.

Installation Details

Installation Details

Craft details up close — a single-tower HQ is won in millimetre-level rigour.

Underbolt Dry-hanging

Underbolt Dry-hanging

Walls use underbolt dry-hanging with three-way adjustable clamps; 304 stainless fittings passed 2 million fatigue cycles.

Large-format Tiling

Large-format Tiling

1,600 mm slab flooring laid with levelling clips to joints under 1.0 mm.

Waterjet Medallion

Waterjet Medallion

The lobby's 6-metre medallion was waterjet-cut into 1,200 pieces, pre-assembled and approved as a whole before leaving the factory.

Column Wrapping

Column Wrapping

Curved panels cut in quarter-circle segments and calibrated one by one with a temporary positioning ring; joint deviation ≤0.3 mm across all 24 lift lobbies.

Seamless Joints

Seamless Joints

Book-matched joints tinted with color-matched epoxy; after arris polishing the gloss is indistinguishable from the slab face.

Crystallised Polishing

Crystallised Polishing

Public-area stone siliconised and crystallised to stain resistance grade 5, cutting annual maintenance cost by 45%.

Technical

Technical Highlights & Solutions

Cross-floor visual consistency, productive offices and a sense of ceremony — HENGSHENG MARBLE S&T CO. LIMITED Stone answers with data.

🏢
CHALLENGE 01

Visual consistency across 21,000 ㎡

All 52 floors of a single-tower HQ must look the same; conventional site work can hardly keep veining continuous across floors.

Solution: Every slab factory pre-assembled and numbered, with 30,000+ pieces grouped by vein; installed veining flows across floors in one unified visual language.
🎯
CHALLENGE 02

A 12-metre book-matched feature wall

The 12-metre double-height entrance wall demands exact book-matching — easily misaligned by conventional installation.

Solution: A book-match pre-assembly plan with all 28 slabs numbered by veining in the factory; on-site hoisting positioned each slab precisely, so the pattern crosses the joints seamlessly.
📏
CHALLENGE 03

High flatness for productive offices

Office floor flatness directly affects trolley movement and furniture stability.

Solution: Levelling-clip-assisted laying throughout, with a levelling datum every 500 ㎡; flatness ±1.2 mm lets office furniture stand direct, no shims needed.
⚙️
CHALLENGE 04

Supply-chain sync for one tower

Five stone varieties must come from the same vein and batch, or floors will show color variation.

Solution: 38,000 ㎡ procured centrally from a single Italian quarry, factory pre-assembled and approved, then shipped floor by floor; color difference controlled to ΔE<1.5.
±1.2 mm
Measured flatness
30,000+
Wall & floor pieces machined
96
Round columns wrapped
ΔE<1.5
Cross-floor color variation
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