What a structural package covers on a Reigate & Banstead project
The moment a wall comes out or a new floor goes in, something has to carry the load that wall or floor was holding — and building control will not accept "it looks strong enough". The engineer traces the load path: the weight of the roof, floors and walls above is gathered into a beam, the beam is sized in steel or timber to carry it within safe deflection, and that load is passed through padstones into the masonry and down to the ground. On Reigate & Banstead's Victorian and Edwardian streets in Reigate and around Redhill's railway junction, abundant low-density 1930s interwar semis in Banstead, postwar and modern estate housing in Redhill, Horley and Merstham and village vernacular in the rural Green Belt and Surrey Hills settlements, the spans and loads differ house to house, so every calculation is specific to the property.
The deliverable is two things that work together: the calculations, which show the maths an approved inspector can check, and the structural drawings, which turn that maths into something a builder can order and fit — a beam schedule with sizes and lengths, bearing and padstone details, and connection notes. A double landscape constraint applies in the south, combining Metropolitan Green Belt with the Surrey Hills Area of Outstanding Natural Beauty, and the calculations are drawn to sit alongside the architectural set rather than contradict it. Everything is signed by a chartered or incorporated engineer carrying professional indemnity insurance.
Older Reigate & Banstead stock — the kind found across Reigate, Redhill, Banstead Village, Reigate Heath, Nutfield and Merstham — often hides the real structural question: shallow Victorian foundations, timber that has been notched by past work, or a wall that turns out to be load-bearing when the drawings assumed otherwise. An Article 4 direction in force from February 2026 removes the permitted right to change ground-floor commercial units to residential across the borough's town and local centres, protecting retail and services frontages. A survey-based calculation catches this before the wall is opened, not after.
