PROJECT - Insurance Reinstatement

Grade I Listed Mansion House, Westminster

Insurance Reinstatement of Grade 1 Listed Mansion House, Westminster

Reinstatement and improvement work to top-down flood damaged mansion, forming part of a historic Nash-designed terrace overlooking Regent’s Park.

Historic building considerations

Given the importance of Grade I Listed status, ANG utilised the services of our technical consultancy to manage the reinstatement process, all of whom specialise in the restoration and reconstruction of historic buildings.

ANG’s reinstatement programme between November 2022 – July 2023 included:

  • Minimising further loss and damage through with rapid response procedures and drying out strategy to minimise risk and eliminate damp and mould outbreaks.
  • Working closely with Westminster City Council to ensure the protection of historic features and reconstruct the property in a robust compliant nature.
  • Liaising closely with the landlord, The Crown Estate, to approve all designs and works and maintain exemplar operational standards so as to minimise disruption to adjoining stakeholders.
  • Phased operations for disposal and deliveries due to the tight logistical nature of the property.
  • Carefully synchronising procurement, permitting, design and construction works to reduce programme time.
  • Clear, informed communication and reporting across all parties including insurer, loss adjuster, client, landlord and statutory bodies.
  • Rigorous management of cost and programme throughout by our experienced management team.



  • Management contracting

“I highly recommend ANG for their exceptional work in rebuilding my house in London over the past two years following significant damage from a rain flood. Their commitment to quality and attention to detail resulted in an outstanding final product. I am truly impressed with the professionalism and craftsmanship displayed throughout the entire project. ANG exceeded my expectations, and I am grateful for their expertise in restoring my home to its former glory.”

Homeowner, Regent’s Park, 2024