Eternal Design and Build

Designation · Grade I, II* and II

The listed building

The consent is the specification. Everything else follows from it.

In short

About one in fifty buildings in England is listed, and the concentration in central and north-west London is far higher than that. Listing covers the whole building, inside and out, and anything attached to it — not just the elevation. For a contractor, the practical consequence is that the listed building consent, and the conditions attached to it, become the governing document on site.

What is controlled

The whole building, and often the things around it

Listing applies to the interior as much as the exterior: staircases, plasterwork, panelling, joinery, chimneypieces, floor structures and the plan form itself. It extends to curtilage structures — outbuildings, walls, railings and gate piers — that were present before July 1948. Grade tells you the significance, not the extent of control.

Separately, conservation-area designation controls demolition, works to trees and, where an Article 4 direction is in place, alterations that would otherwise be permitted development. A building can be affected by both.

How the process runs

Consent first, then a specification that matches it

Listed building consent is obtained by the design team, usually alongside planning permission and supported by a heritage statement. Conditions commonly require sample panels, method statements for particular operations, approval of specific materials, and a written record of what is removed. Those conditions are contract obligations once the works start.

Building regulations still apply, but with the discretion to depart from a full standard where compliance would harm the building's special interest — for example on window U-values, floor insulation depth or means of escape. That discretion is exercised by the building control body against a case that has to be made, not assumed by the contractor.

What a contractor must get right

Record, protect, sequence, and refer

Record: a photographic and written condition survey of everything retained, before any protection is fixed. Protect: boarding, casing and covering of staircases, chimneypieces, joinery and floors as the first operation on site, not a later one. Sequence: agreed in advance with the engineer and the temporary works designer, because on a historic building the order of work is the safety case.

Refer: when something is uncovered that is not on the drawings, or when the consented detail cannot be built as drawn, the work stops at that point and the design team and local authority decide. Unauthorised alteration to a listed building is a criminal offence and can attract an enforcement notice requiring reinstatement. No programme saving is worth that exposure.

Boundaries

What Eternal does and does not do

Eternal carries out the construction works and manages the site. Heritage and conservation advice, listed building applications, structural design, temporary works design, waterproofing design and geotechnical work are by the appointed specialists and consultants for each project.

Chartered status is held by the company's director, Prakash Choudhary, as a Chartered Builder and Member of the Chartered Institute of Building. It reflects assessed professional competence and a code of conduct. It is not an endorsement, approval, warranty or guarantee of any project, and no accreditation or membership of itself provides a warranty or insurance unless a specific product has been purchased and issued in writing.

Our work on this type

Projects delivered by Eternal on comparable buildings

Where this stock is

Knightsbridge · Chelsea · Belgravia · Mayfair · Hampstead · Islington · Marylebone

Area pages state the areas we serve. They do not state that a project has been completed in that area.

Enquiries

Working on one of these?

Send the drawings, the survey or simply the address and we will tell you what we think the job actually involves.