Utility Trenching · Oxford, Oxfordshire

Conservation Area Cable Diversion & Reinstatement — Oxford

An LV cable diversion through an Oxford conservation area, with original Yorkstone paving lifted, retained and re-laid to within millimetres of where it came from.

LocationOxford, Oxfordshire
DateMarch 2025
VoltageLV
Scale120m / heritage paving
ClientCity council framework

A new building on a sensitive Oxford city-centre site needed an LV supply diverted to clear its footprint. The diversion route ran across an old Yorkstone-paved street within a conservation area, with very tight reinstatement requirements set by the city council.

We tendered for this on the back of similar conservation-area work in St Albans and Welwyn. Won it on our reinstatement track record.

What the job involved

  • 120m of LV cable diverted on a new route between two existing pits.
  • Yorkstone paving lifted whole, individually numbered and palletised on site.
  • Trench excavated, duct laid and cable pulled in a single phased programme.
  • Yorkstone re-laid in original orientation with traditional bedding and pointing.
  • Joints and re-energisation completed under DNO sanction.

Key challenges

  • City council heritage officer attended each lift and re-lay — paving had to match exactly.
  • Limited daytime delivery slots through the conservation area.
  • Pedestrian and cycle traffic continued throughout — multiple TM phases needed.

Outcome

  • Reinstatement passed heritage officer's inspection without comment.
  • Diversion delivered inside the agreed Section 58 window.
  • Council added us to their cable contractor framework for conservation areas.

I've seen contractors butcher Yorkstone reinstatement and it's a year of arguments. None of that here — paving looked like it had never been lifted.

— Conservation Officer, Oxford, Oxfordshire

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