Case studyKensington · W8

Kensington mansion flat, a mezzanine added

A Kensington mansion flat with a new mezzanine. Designed and built by NU Projects.

Where
Kensington, W8
The home
A mansion flat
The work
A mezzanine, kitchen and joinery
On site
Autumn 2025
Status
Completed
Designed and built
NU Projects
Drawing room shown as designed, a book matched marble media wall in the bay windowed room. A visualisation.
Kensington · The drawing room, shown as designedVisualisation

i The brief

A floor added inside a room.

Use the height of the room.

The ceilings in this flat are very tall.

We designed a mezzanine above the kitchen.

Open oak steps and a glass balustrade lead up to it.

A marble media wall, new wardrobes and air conditioning complete it.

ii Before

The flat as we found it.

Taken in July 2025, before the work began.

The bay window of the drawing room before the work, grey carpet and long curtains.
Kensington · The drawing room bayBefore the work, photograph
The old galley kitchen under a very tall ceiling.
Kensington · The old kitchenBefore the work, photograph
The arched dining recess before the work.
Kensington · The dining recessBefore the work, photograph
A bedroom with painted fitted cupboards and ornate cornicing.
Kensington · A bedroomBefore the work, photograph
A bedroom before the work, an iron bed under a tall window.
Kensington · A second bedroomBefore the work, photograph
The old shower room, a glass enclosure and timber effect floor.
Kensington · The old shower roomBefore the work, photograph

iii The drawings

Every room drawn first.

The existing layout, the new layout and the mezzanine section.

The media wall and wardrobes drawn to the millimetre.

The existing layout of the flat.
Kensington · The existing layoutInterior design drawings
The proposed layout, furnished room by room.
Kensington · The proposed layoutInterior design drawings
Section through the kitchen and the new mezzanine, with the stair and glass balustrade.
Kensington · The mezzanine sectionInterior design drawings
Elevation of the media wall, a book matched slab between lit shelving.
Kensington · The media wallInterior design drawings
Elevation of the principal bedroom wardrobes, with hanging and shoe storage.
Kensington · The principal wardrobesInterior design drawings

We did not photograph the finished flat. So here it is as designed.

iv The rooms

Shown as designed.

Made from the design drawings and the room as it stands.

Visualisations, never photographs of the finished flat.

Drawing room shown as designed, a book matched marble media wall in the bay windowed room. A visualisation.
Kensington · The drawing roomVisualisation
Kitchen shown as designed, lit oak steps to a mezzanine behind a glass balustrade. A visualisation.
Kensington · The kitchen and mezzanineVisualisation
Principal bedroom shown as designed, a full wall of lit lacquered wardrobes. A visualisation.
Kensington · The principal bedroomVisualisation

v The team

Who built it.

Led the project
Nick Jeffries, founder
Design, cost and construction
NU Projects, under one contract

The scope Mezzanine Kitchen Media wall Bespoke wardrobes Air conditioning Electrics and lighting Project management

Services on this jobConstruction

More workPrime London

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Main bathroom shown as designed, warm onyx marble and a freestanding bath. A visualisation.

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Visualisation
Kitchen with a dark marble island, bronze units and integrated ovens.

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Completed work, photograph

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