Brentford Hall

SGH evaluated the abutter’s proposed plans and submittals, including demolition means and methods, details for an excavation support system, and plans for underpinning along the property line. Highlights of our work include the following:

• Discussed the demolition and new construction plans with the abutter’s developer and engineer and provided feedback to the abutter prior to the start of any work
• Performed periodic monitoring during demolition to assess if the work was being performed in accordance with the approved submittal
• Reviewed pre-construction condition surveys by others and supplemented them with photo and video documentation
• Requested test pit excavations to confirm existing foundation assumptions and documented the soil and foundation conditions in the pits
• Communicated concerns about potential excavation-induced building movements, leading to modifications to the excavation support design and building movement monitoring during construction
• Identified threshold and limiting movement values and reviewed survey data to evaluate building performance during the excavation work
• Evaluated post-construction photographs of Brentford Hall to compare to pre-construction conditions and opine on whether the damage was a result of the adjacent construction