Mansard loft master bedroom with oak joinery, stone fireplace, timber bed platform and large sash windows, London — architect-designed loft conversion

*Project completed while working at Cooke Fawcett Architects.

Thorpedale Road

A three-bedroom Victorian terraced house extended with a mansard loft, creating a master suite with carefully considered interiors, abundant natural light, and a contextual yet contemporary feel.

Sculpted clay plaster landing with arched doorway and curved wall, mansard loft conversion London — Alec Crisp Architect at Cooke Fawcett
View from loft level towards pocket door stair access with Dinessen Douglas fir flooring and low parapet, London mansard loft conversion

Behind a large pocket door, the new staircase leads to a level that feels private and tranquil, entirely separate from the house below. The bedroom spans the full footprint of the main house, offering front-to-back views through generous windows. Sculptural elements subtly soften the room, and earthy tones and timber textures in the flooring and cabinetry introduce natural warmth. Period-inspired details, like a new fireplace and large sash windows, anchor the addition within its historic context.

Positioning the bedroom door at the bottom of the stair, rather than the top, allows the space to unfold as a single, continuous volume. The bathroom is defined by a sculpted wall that doesn’t intrude in the space, while a circular skylight above the shower follows the curve of the wall, bringing light into the space.

Mansard loft bedroom with stone fireplace surround, full-height oak cabinetry and bespoke sash windows with timber shutters, London architect-designed loft conversion
Minimal oak staircase with pendant light leading to loft level, architect-designed loft conversion London
Oak stair treads with slim steel handrail rising to mansard loft bedroom, London architect loft conversion

Generously sized windows bring abundant natural light into the space. Front-facing windows maintain a traditional character, while rear-facing glazing adopts a more contemporary expression. A skylight above the stairwell directs light down through the pocket door, connecting the levels.


A restrained palette of carefully selected materials defines the interiors. Clay plaster walls follow the natural curves of the space, while Dinesen Douglas flooring introduces warmth and tactility. Bespoke shutters, joinery, architraves, and the stone fireplace introduce refinement and thoughtful detail.

Loft conversion bathroom with circular round skylight above shower, curved clay plaster wall and natural light, London architect
Architect-designed bathroom with stone tiles, wall-mounted basin, WC and bespoke timber shutters, mansard loft conversion London

© 2026

All Rights Reserved

© 2026

All Rights Reserved