Islington Loft Conversion

A four-bedroom Victorian terrace in Islington had one thing missing: space to grow. The family loved the street, the school run and the garden — but the house had run out of rooms. Rather than move, they asked us to look up.

The Brief

The brief was specific from the first meeting. Turn a cramped, cobwebbed roof void into a full master suite — a bedroom, a proper en-suite and a study nook — without losing the period character of the house, and without losing a single week to planning surprises. The budget was fixed. The clients were living in the house throughout, with two children and a dog, so the build had to be sealed off from the floors below and the mess kept out of the family’s week.

There was one more constraint, and it was the important one: the street sits inside a conservation area. Whatever we designed at roof level had to be invisible from the pavement.

The Design

We began with a full measured survey, then tested three dormer options against head height, daylight and the conservation officer’s known preferences. A hip-to-gable conversion gave the most floor area on paper but changed the roofline the street sees. A mansard gave the cleanest external form but ate into the budget. The winning scheme was the quietest one: a wide flat-roof dormer to the rear, holding the original butterfly roofline at the front so that from the street, nothing appears to have happened at all.

Inside, the staircase decided everything. Rather than steal a bedroom to land a new flight, we continued the existing stair in the same style over the hallway, which cost nothing in rooms and put the new floor exactly where the family already walks. The bedroom faces the garden through the full-width dormer glazing; the en-suite tucks under the ridge where head height matters least; and the study nook borrows the last metre beside the stair, lit by a conservation rooflight at the front.

Planning & Party Walls

Because the dormer never shows itself to the street, the conservation officer’s main concerns were answered before they were raised. We submitted with full drawings, a daylight study and a materials schedule matching the existing slate and brick. Full planning permission was granted first time, in eight weeks, with no amendments.

Both neighbours shared a party wall with the works. Notices, schedules of condition and the awards were handled in-house alongside the structural package — one team, one point of contact — so the neighbours knew what was happening before the scaffold went up, and stayed friendly for the twelve weeks it stood.

On Site

The build ran to a simple rhythm: scaffold and roof opening in week one, steels in by week three, the dormer weathertight by week five. From there the work moved indoors — first fix, insulation to current standards, then the staircase, which arrived as a kit and went in over two days. The family stayed in the house for all of it, behind a sealed door at the head of the old stairs.

The Project, In Pictures

They told us in week one exactly what the council would say — and that is exactly what the council said. The whole thing felt calm from start to finish.

The owners, Islington

The Result

A light-filled master suite with full head height across the whole new floor: a garden-facing bedroom behind the dormer glazing, a walk-in shower where the old water tank sat, and a study nook that has quietly become the most fought-over spot in the house. Twenty-eight square metres of new living space — and a valuation uplift comfortably above the build cost.