Howlands House, Welwyn Garden City

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Project Sector: Mixed-use

Project Overview

Redevelopment of an existing site to provide new multi-storey temporary housing across three residential blocks, including external parking, a substation, a below-ground sprinkler tank, and landscaped amenity spaces. (All images for this project are artist’s impressions.)

Project Details

Architect: Pellings LLP
Value:£10m
Date: February 2020
Location:Howlands House, Welwyn Garden City AL7 4SD

Our Role (Structural Engineering Services)

We delivered structural engineering services up to RIBA Stage 3+, covering scheme design and key technical assessments:

  • Developed a piled foundation solution and suspended ground floor design per ground investigation findings.
  • Conducted construction form assessments considering robustness Class 2B and necessary tie details.
  • Evaluated height limitations to optimise transfer structures only where essential.
  • Proposed reinforced concrete frame construction with flat slabs at upper levels and transfer structures at first floor as required.
  • Designed cranked frames anchored to the base slab, supporting secondary steel beams, timber roof rafters, and dormer joist assemblies

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