Listed Building Window Replacement & Restoration Edinburgh

Cat A/B/C · LBC Paperwork Handled · From Quoted per project

Listed buildings in Edinburgh (Cat A, B and C) need Listed Building Consent for any external window alteration, including like-for-like timber replacement. Heatscape's heritage joiners handle Cat A, B and C listed properties across the city — Georgian New Town, Old Town High Street, Victorian villas in Merchiston and The Grange, arts-and-crafts cottages in Colinton — with full LBC paperwork, heritage statements and approved methodologies.

What counts as a listed building

Scotland has three listing grades. Cat A buildings (about 8% of listings) are of national or international importance — Edinburgh has hundreds, including most of the New Town and Old Town. Cat B (about 50%) are of regional importance. Cat C (the rest) are of local importance. The legal protection is identical across all three grades: any external alteration needs Listed Building Consent from the City of Edinburgh Council, granted by the planning department after a 12-week public consultation.

What needs Listed Building Consent

External alterations: window replacement (even like-for-like timber), slim-line double glazing, paint colour change, profile change, addition of vents or trickle vents, removal or addition of astragals, cill replacement. Internal alterations to listed features: original shutters, panelling, sash hardware. Anything that's not maintenance. What doesn't need consent: sash cord renewal, brush-pile draught-proofing, re-glazing in matching glass, re-painting in the existing colour with a like-for-like paint system.

The LBC application process

We complete the Listed Building Consent application as part of every listed-property project. The application bundle includes: heritage statement (history of the property and the proposed change), photographic survey (existing condition of every affected window), method statement (how we'll execute the work), drawings to scale (existing and proposed), and proof of competence (CV of the lead heritage joiner). Submission to the council is electronic; decision in 12 weeks unless the council calls for public consultation, which adds 4–6 weeks.

Approved methodologies on listed buildings

The council planners have a recognised list of approved methodologies for listed-building window work: like-for-like timber repair with scarfed-in matched-grain softwood splices, sash cord renewal in waxed cotton (or 8mm braided polyester with planner's discretion), Histoglass or restoration-grade Slimlite slim-line double glazing with hand-blown outer pane on principal elevations, breathable linseed-oil paint (Allbäck, Holkham), traditional putty pointing (linseed putty, no acrylic-modified putty). Anything outside this list needs case-by-case justification.

Common Edinburgh listed-building projects we deliver

Restoration of Georgian 6-over-6 sash and case windows in New Town townhouses (Heriot Row, Moray Place, Ainslie Place). Slim-line double glazing retrofit in Victorian villas in The Grange and Merchiston with planner approval. Like-for-like timber casement replacement in Colinton and Cramond. Full restoration of Old Town tenement sashes on the Royal Mile, Cowgate and Grassmarket. Heritage shutter restoration and re-instatement.

What it costs and how long it takes

Listed Building Consent paperwork is £750 per application (included in any project over £4,000). Project lead time is typically 16–20 weeks from contract signing: 12 weeks for LBC, 3–4 weeks for manufacture, 1–2 weeks for install. We give you a fixed price after the survey and the LBC route is clear; project pricing is per listed building, with no day-rate work. 10-year workmanship guarantee.

Frequently asked questions

Can I do window work on my Edinburgh listed building without consent?
Only true maintenance is exempt — sash cord renewal, brush-pile draught-proofing, re-glazing in matching glass, re-painting in the existing colour with a like-for-like paint system. Any replacement, profile change, paint colour change or addition needs Listed Building Consent.
How long does Listed Building Consent take in Edinburgh?
12 weeks for a standard application. Add 4–6 weeks if the council calls for public consultation, which happens on Cat A buildings and on any application that proposes a significant change.
Can I install slim-line double glazing in my listed sash windows?
Yes, on most Cat B and C listed buildings. Cat A is case-by-case. Approval requires hand-blown outer pane (Histoglass or restoration-grade Slimlite), colour-matched spacer bar, and retention of any salvageable original glass for use elsewhere in the building.
What happens if I do unauthorised work on a listed building?
Unauthorised work is a criminal offence under the Listed Buildings Act. The council can require you to reverse the work at your cost (Enforcement Notice), and the property's listing record will show the breach permanently, affecting resale value.
Do you handle the Listed Building Consent paperwork?
Yes — heritage statement, photographic survey, method statement, drawings and competence proof. £750 LBC paperwork charge is included in any project over £4,000, billed separately on smaller projects.
Can I replace my listed sash windows with uPVC?
No — the council will refuse. uPVC is not an approved methodology on any Cat A, B or C listed building, regardless of elevation.

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