Completed International Case Study

950 m² 3-Storey Residential Development in Kent, United Kingdom

Location: Kent, United Kingdom Type: Multi-Family Housing Floor Area: 950 m² (10,226 sq ft) Scope: Supply + Supervision Status: Completed (2024)
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Eurocode 3 & 8 Certified Engineering
EN 1090-2 Factory Quality Control
40ft HC Container Packing & Flat-Pack Export
100% Bolted Field Assembly (Zero Site Welding)
3 Storeys
LGS Superstructure
Panelized lightweight steel
58 dB
Acoustic Rating
Exceeds UK Building Regs Part E
8 Weeks
Schedule Saved
Faster than traditional masonry
REI 90
Fire Partitioning
Tested floor & wall assemblies

Project Technical Summary

Structural Technology Panelized Light Gauge Steel Framing
Steel Grade & Coating S350GD + Z275 Galvanized Steel
Location & Country Kent, United Kingdom (United Kingdom)
Floor Area (m²) 950 m² (10,226 sq ft)
Delivery Scope Supply + Supervision
Key Engineering Result Structural frame completed 8 weeks ahead of equivalent traditional blockwork schedule.

Delivered Technical Scope

  • BIM level 2 coordinated structural models
  • Panelized factory-assembled wall units with weather-resistant sheathing applied
  • Acoustic floor cassette system achieving 58 dB sound insulation
  • UK Building Control compliant engineering sign-off package
✓ 100% factory pre-engineered and quality-inspected under EN 1090-2 execution standards.

The Project Challenge & Engineering Solution

How our structural engineers tackled complex site constraints, wind/seismic forces, and strict deadlines.

The Project Challenge

Tight urban infill site with strict boundary constraints and demanding acoustic separation standards between apartment units.

The SerBuild Engineering Solution

Pre-engineered panelized wall cassettes with integrated acoustic dampening strips and open-web steel floor joists allowing concealed MEP duct runs without ceiling drop beams.

Structural Mechanics & Finite Element Blueprint

Detailed static modeling, load dissipation paths, and statutory regulatory validation.

Structural Engineering & Detailing Analysis

Panelized Light Gauge Steel Framing • S350GD + Z275 Galvanized Steel

Constructed on a restricted urban infill site in Kent, this 950 m² 3-storey residential building required rigorous acoustic isolation and passive fire protection. Our engineering team detailed factory-assembled 2D panelized wall units with integrated acoustic isolation resilient bars and deep open-web floor cassettes capable of concealing all electrical and plumbing services without dropped ceiling bulkheads.

European Eurocodes & Standards Compliance

Verified structural calculations matching national building regulations and Eurocode annexes.

BS EN 1993-1-3

UK Cold-Formed Steel

Multi-storey light gauge steel framing with UK National Annex.

Approved Document E

Acoustic Performance

Party walls and floors tested to exceed 58 dB airborne and Ln,w < 52 dB impact sound.

Approved Document B

Fire Safety

REI 90 fire resistance rating on loadbearing party walls and floor cassettes.

NHBC Standards

Technical Warranty

Full compliance with NHBC Chapter 6.10 light steel framing criteria.

End-to-End Execution Lifecycle: BIM to Site

Seamless workflow from 3D parametric Tekla BIM to automated CNC pre-fabrication and job-site erection.

01

BIM Level 2 Coordination

3D Tekla-Revit clash resolution between structural framing, MEP risers, and architectural facades.

02

Factory Panel Cassette Pre-Assembly

Automated wall framing with factory-fitted acoustic sheathing and weather barrier.

03

Containerized Shipping via Dover

Seaworthy high-cube containers delivered in scheduled phases matching floor erection stages.

04

Supervised Floor-by-Floor Assembly

3 storeys erected in 18 days with SerBuild quality supervisor verifying acoustic seals.

Technical Bill of Quantities & Deliverables Matrix

Comprehensive breakdown of delivered steel superstructure components, secondary framing, envelope, and dossier.

Wall Cassettes
100mm & 140mm S350GD Studs
Factory assembled 2D wall panels with acoustic isolating strips and OSB/3 sheathing.
Floor Cassettes
Open-Web Steel Joists
250mm deep floor cassettes with pre-punched service openings and acoustic batts.
Roof Framing
LGS Pitched Roof Trusses
Lightweight truss framing engineered for heavy UK concrete roof tiles and solar PV.
Acoustic Package
Resilient Channel Assemblies
Decoupled resilient bars, dense acoustic mineral wool, and acoustic perimeter flanking tapes.
Statutory Package
UK Building Control Sign-Off
Structural engineering calculation package, NHBC warranty checklist, and CE certs.
“

SerBuild's panelized steel system saved us 8 weeks on site compared to blockwork. The acoustic test results exceeded UK Building Regulations by a wide margin.

David Thornton
Managing Director • Kentish Urban Homes Ltd

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Frequently Asked Questions

Detailed answers to technical, manufacturing, export, and on-site assembly questions.

SerBuild designs and manufactures light gauge steel (LGSF) and heavy structural steel buildings for residential developments, industrial warehouses, manufacturing factories, aircraft hangars, commercial offices, and agricultural halls.

Yes. All structural engineering is performed strictly according to Eurocodes (EN 1990, EN 1991, EN 1993, EN 1998) including project-specific National Annex parameters for local snow, wind, and seismic loads.

We offer five flexible delivery packages: Engineering Only, Supply Only (containerized flat-pack kit), Supply with On-Site Supervision, Complete Frame Installation, and Turnkey Project Delivery in eligible regions.

Components are precision roll-formed or cut, permanent piece-marked, and packed in dense weather-protected flat-pack bundles optimized for 40ft High Cube containers, accompanied by detailed 3D packing lists and assembly manuals.

Submit your project location, building dimensions (width, length, eave height), intended use, and any available architectural drawings or sketches via our 5-step RFQ form. Our engineering team reviews the submission and responds within 24–48 hours.

Request an Engineered Steel Building Proposal

Submit your project dimensions, drawings or requirements for an engineering review and itemized quote within 24–48 hours.

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