SDESmith Design Engineering

Surveys and compliance

Building services surveys and compliance

Condition surveys, electrical periodic inspection reporting and statutory compliance audits for existing buildings.

Discipline
Surveys and compliance
An engineer inspecting installed services on site.

WHAT IT IS

Survey and compliance work establishes what is actually installed in an existing building, what condition it is in, and where it does not meet current requirements.

It is the necessary first step on most refurbishment projects, and it is frequently the whole job — a landlord, a fund or an incoming tenant needing to know what they are taking on before they commit to it.

SERVICES

Services in this discipline

  • M&E dilapidations surveys

    Mechanical and electrical input to schedules of dilapidations, for landlords and tenants — what the lease actually requires, costed, and defensible.

WHEN YOU NEED IT

Before acquiring or leasing a building, before committing to a refurbishment scope, when plant is approaching end of life and a replacement programme needs to be planned, or when a periodic inspection has returned unsatisfactory results and the remedial scope needs defining.

DELIVERABLES

What you receive

  • Condition survey report with photographic record
  • Asset register and remaining life assessment
  • Compliance gap analysis
  • Prioritised remedial schedule with budget costs
  • Planned replacement programme

STANDARDS

Standards applied

The editions in force at the time of design. Where a standard is amended mid-project we confirm which edition the appointment is based on.

  • BS 7671:2018+A4:2026Requirements for Electrical InstallationsIET
  • IET Guidance Note 3Inspection and TestingIET
  • HSG274Legionnaires disease — technical guidanceHSE
  • CIBSE Guide MMaintenance engineering and managementCIBSE
  • SFG20Standard maintenance specification for building servicesSFG20

QUESTIONS

Common questions

What does a building services condition survey cover?

A condition survey records the installed mechanical, electrical and public health plant, assesses its condition and remaining life, identifies where it no longer meets current standards, and sets out a prioritised remedial and replacement schedule with budget costs.

How often does an electrical installation need periodic inspection?

IET Guidance Note 3 Table 3.2 gives recommended maximum intervals by premises type — commonly five years for commercial installations, three years for industrial, and three years or less for premises open to the public. BS 7671 requires periodic inspection but does not itself set the interval: it is determined by the person carrying out the previous inspection, on the condition and use found.