
Cuffley Residential Renovation
From structural alteration and renovation through to refined interiors and a renewed exterior, this project documents the journey from construction site to completed home.

CASE STUDY · Crouch End, North London (N8)
A rear dormer loft conversion creating a principal bedroom, en-suite and built-in eaves storage, with a new staircase designed to sit within the existing landing.
01. OVERVIEW & BRIEF
The family needed a quiet principal bedroom and en-suite bathroom on a new second floor, with generous built-in storage in the front eaves and a staircase that looked and felt like part of the original Edwardian house.
02. PROPERTY CHALLENGE
Head height at the existing ridge was tight and the first-floor landing was narrow. We had to position the new structural floor steels carefully to maximise ceiling height while designing a winder staircase that met Building Regulations headroom rules without encroaching on the box room.
03. ORAMA SCOPE
Working from external scaffolding under a temporary weatherproof roof, we installed steel floor beams between the party walls, framed a full-width rear dormer, insulated to current Part L standards, built a matching timber staircase, and fitted out the bedroom and en-suite.
04. PLANNING & COORDINATION
Secured a Lawful Development Certificate under Permitted Development rights, Party Wall agreements with both adjoining neighbours, and full Building Control approval including fire door and escape route upgrades.
EXECUTION STAGES
Sequenced by Costas Joannides to ensure structural integrity, tidy site coordination, and seamless transitions between trades.
Erecting tin-hat scaffolding, hoisting RSJ steel beams into party wall pockets, and laying new independent floor joists.
Constructing the rear dormer timber shell, fitting high-performance PIR insulation, rooflights, and weatherproof cladding.
Opening the landing trimmer, fitting the bespoke flight, and routing first-fix plumbing and electrics for the en-suite.
Plasterboarding, en-suite tiling and sanitaryware, bespoke eaves storage joinery, fire doors, and Building Control sign-off.
IMAGE GALLERY
Select any photograph to view it enlarged.
PROJECT PHOTOGRAPHY
Photography documenting the project from existing condition through to completion.
PROJECT OUTCOME
A calm, light-filled top floor suite that adds a generous double bedroom, shower room and full-width eaves storage while preserving every room on the floor below.
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DISCUSS A SIMILAR PROJECT
Book a free initial home visit in Potters Bar, Hertfordshire or North London. Direct consultation with founder Costas Joannides.