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orangeries — bespoke installation by South East Windows & Doors across London and the Home Counties
Extensions

Orangeries — London & the Home Counties

Signature detail

The roof lantern

The central glazed lantern is what makes an orangery an orangery. A raised structural aluminium frame carries a slim-sightline glazed pyramid above a deep flat perimeter roof — the overhead light drops straight onto a dining table, while the perimeter stays low, plaster-lined and lit by downlights. It's a room that behaves like a room, with the sky right where you want it.

Overview

An orangery is a conservatory that has decided to be a room. Brick piers at the corners, a deep flat perimeter roof with downlights and cornicing, and a central glazed lantern — the light comes from above, the walls carry the same feel as the main house, and the room reads as architecture.

01

Structural Brick Piers

Load-bearing corner piers built in a brick or stone matched to the host elevation — the orangery reads as an extension of the house, not a bolted-on room.

02

Central Roof Lantern

A raised glazed lantern above a flat perimeter roof floods the room with overhead light while keeping the ceiling low and intimate around the walls.

03

Full Building Regs Room

Because there's no external-quality separating door, an orangery is a heated habitable room under Building Regs — usable as an open-plan kitchen, living or dining space.

04

Cornicing & Downlights

The flat perimeter roof lets us run plaster cornicing, downlights and even pendant fittings — details a fully-glazed conservatory can't accommodate.

05

Bifolds or Sliders as Standard

Full-width bifolds or slim-frame sliders along the garden face turn the orangery into a seamless indoor-outdoor room in summer.

Orangeries — where we install

Orangeries across London
and the Home Counties.

We install orangeries across six counties — every project surveyed, made and fitted by our in-house team. Choose your county to read local knowledge, planning notes and recent work.

See all areas covered
Recent work

Orangeries — installed.

A selection of recent installations across London and the Home Counties, photographed on site.

Luxury orangery interior with load-bearing brick piers, deep flat perimeter roof and central glazed roof lantern, elegant dining table with brass pendant lights, marble floor, attached to a substantial British country home at warm evening light with a landscaped garden visible through open patio doors
Roof lantern orangery · country home interior01
Anthracite grey lean-to glass extension with a pitched glazed roof on a white rendered home and bright garden lawn
Pitched glass extension · garden elevation02
Contemporary black-framed glass extension on a brick British home at dusk with warm interior light
Contemporary glass extension · dusk03
Common questions

Practical answers.

Everything homeowners ask us about orangeries — survey, lead times, guarantees and coverage.

Orangery or conservatory — what's the practical difference?+

An orangery has substantial masonry walls or piers and a flat perimeter roof with a glazed lantern; a conservatory is predominantly glazed with a fully-glazed pitched roof. An orangery feels like a room; a conservatory feels like a light-filled garden building.

Does an orangery need Building Regs approval?+

Yes — because it's typically open to the main house without a separating door, it counts as a habitable room and needs Building Regs sign-off. We handle the submission.

How does an orangery differ from an Edwardian conservatory?+

An orangery uses substantial brickwork, deeper foundations and a Building Regulations specification, creating a more room-like interior with a central roof lantern. An Edwardian is more fully glazed with a hipped roof.

How long does an orangery take to build?+

10–14 weeks from signed order, with 3–5 weeks on site. Planning, if required, adds 6–8 weeks upfront.

Can I have an orangery on a small footprint?+

Yes — from 3m × 3m upwards. The proportions work best when the depth roughly matches the height, so a small orangery with a proud lantern often reads better than a stretched-out low one.

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