Case Study: Differential Foundation Settlement & Tidal Hydrostatic Water Ingress at 50–52 Ferry Street, E14 Executive Summary Structural Context & Foundations The property sits on a tidal riverside boundary with a hybrid foundation system: Diagnostic Observations & Pathology 1. High-Level Cracking 2. Basement-Level Cracking & Water Ingress Diagnostic Conclusions & Recommendations High Level: Helical stainless … Read more
Case Study: Airspace Extension & Structural Retrofit Project: Mapperley Close, London, E11 2SF (Completed 2025) Scope: Vertical Extension, Thermal Upgrade & Disproportionate Collapse Mitigation 1. Overview & Objectives Completed in 2025, this project delivered a vertical airspace extension and thermal retrofit to a three-storey residential block in London. The scheme unlocked asset value by constructing … Read more
Case Study: Stairwell Restructuring & Roof Support Situated in the historic Woodford Green Conservation Area, this large three storey property is a locally listed building situated near the Grade II listed All Saints’ Church. Originally constructed as a substantial suburban villa during the late 1700’s, the home retains the generous proportions and architectural significance typical … Read more
Case study: 15-17 Blackfriars Lane EC4V Project Overview Situated within the historic Ludgate Hill Conservation Area in the City of London, 15-17 Blackfriars Lane—historically known as Newsclip House—is a striking, detached five-story Grade II listed Victorian building. Encompassing roughly 7,480 square feet of space, the property features a ground and basement level dedicated to commercial … Read more
Case Study: Buckhurst Hill IG9 PSL were commissioned to complete the temporary works design for a two storey rear extension at short notice. Following an initial inspection it was clear that the proposed acrow propping would be insufficient due to the large storey heights. PSL Engineers then agreed and proposed an alternative support system using … Read more
The existing residential property was a two storey five bedroom detached property located on a sloping site close to Loughton Brook. PSL Engineers were commissioned directly by the homeowner to consider options for maximizing proposed additional floor area at the rear. Working closely with the architect and client, proposals for a two storey steel frame … Read more
Extensive remodelling and enlargement of an existing two storey five bedroom detached property. Proposed works included the design and construction of a rear two storey steel sway frame with feature lightwell on to mass concrete pad foundations, and complex reconfiguration of the internal layouts.
A single storey rear extension and internal reconfiguration to an existing six bedroom residential property. Initial investigations were completed in advance of the main contract to ensure the existing structure was fully understood prior to starting the build. This then enabled the structural design to be fully coordinated with the architect and client, and for … Read more