Conservation Dormer Windows in Northumberland
From the first measured survey to the completion certificate, we run conservation dormer windows projects in Northumberland as a single, managed piece of work.
Conservation Dormer Windows — indicative geometry
Conservation Dormer Windows for Northumberland homes
Roofs across Northumberland are dominated by Victorian and Edwardian terraces, interwar semi-detached houses and post-war bungalows, and that mix decides almost everything about what a dormer here needs to look like and how it has to be built.
In a conservation area or on a listed building the dormer is judged on proportion, material and detail before anything else. We work from what is already on the street: matching sightlines, glazing bar widths, cill projections and cladding to the surviving original dormers, and preparing the elevations and sections your planning or listed building consent application needs.
Key specification
| Materials | Timber, lead, natural slate, clay tile |
|---|---|
| Glazing | Slim heritage or single-glazed secondary |
| Detail matching | Sightlines, bars, cills, cheek finish |
| Documentation | Elevations and sections for consent |
Planning and building control in Northumberland
If the property is in a conservation area or the dormer faces the road, a full planning application is needed. We prepare the drawings and handle the submission either way.
Building regulations approval is separate and always required. We submit the application, book the inspections around the programme and hand you the completion certificate at the end — the document a buyer's surveyor will ask to see.
Why homeowners in Northumberland use us
Everything is priced from a measured survey, not a phone call — which is why our quotations tend to be the ones that still hold at the end of the job.
The quickest route is a photograph of the rear elevation over WhatsApp — we can usually tell you what is feasible before anyone visits.
Other dormer work in Northumberland
FAQs
Conservation Dormer Windows in Northumberland — FAQs
What happens to my existing loft insulation?
It comes out. Insulation at ceiling-joist level is in the wrong place once the loft is a room — the thermal line moves up to the new roof and dormer build-up. We remove and dispose of the old quilt and insulate the new envelope, which is also what makes the room comfortable to use in August.
How long does a dormer take to build?
A single box or flat roof dormer is typically three to five weeks on site. A full-width rear dormer runs five to eight weeks, and an L-shaped dormer on a terrace with an outrigger is closer to seven to ten. A complete dormer loft conversion including the staircase, services and finishes is usually eight to twelve weeks from scaffold up to sign-off.
Can you build a dormer on a bungalow?
Usually yes, and bungalows often give the best results because the spans are wide and there are no party walls. The deciding factor is ridge height: you generally want at least 2.6m from the top of the ceiling joists to the underside of the ridge. We measure this at survey before committing to anything.
Can I put a dormer on the front of my house?
Front-facing dormers are not covered by permitted development and always need a full planning application. Approval depends heavily on the street scene — planners look at whether other dormers already exist on the road, and at proportion, position and materials. Hipped and pitched forms are approved far more often than flat boxes on a front elevation.
Do you handle the planning application?
Yes. We prepare measured drawings, elevations and sections, submit the application or the lawful development certificate, and deal with the case officer's queries. On conservation and listed work we also put together the heritage justification the application needs.
Find out what your roof will take
A free measured survey in Northumberland tells you what is achievable, what it needs, and what it costs — before you commit to anything.