4-8 week typical stays
Audit teams and integration consultants typically stay 4-8 weeks at the client site. Long enough for monthly rates to apply, short enough that hotel pricing genuinely hurts.
Concentrated in financial cities
London, Edinburgh, Manchester, Birmingham see the biggest spikes. Smaller cities see them less. Book early in the impacted cities.
Mid-week mostly, weekends home
Most consultants want Mon-Thu accommodation, weekend home. Some hosts offer 'Mon-Fri only' rates that match this pattern. Worth asking.