How To Insulate A Period London Home

Prebend Street, Islington — a Victorian home after insulation and retrofit improvements. Warmer, brighter and more comfortable, without losing its original character.

Natural insulation materials such as wood fibre, cork and hemp — breathable and low-carbon alternatives to synthetic foams.

Crouch End, London — breathable internal wall insulation to a flat in a semi-detached Victorian home.

Lower Clapton, Hackney — continuous insulation detailing at wall-to-ceiling junction.

Lower Clapton, Hackney — finished mansard loft insulated with natural wood fibre.

St Paul Street, Arlington Square Conservation Area, Islington — quiet, warm Victorian home after insulation upgrade.

Little Venice, London W9 — CGI of a Victorian home redesigned for comfort, daylight and energy efficiency.

Greg and Daniela Mathers, founders of Studio CMA, specialise in considered retrofits and low-energy renovations for period homes across London.

• Can I insulate solid walls in a conservation area?

  Yes, usually on the inside. External insulation may need consent. Always use breathable materials.

• What’s the best insulation for a Victorian terrace?

  Wood fibre or cork boards combined with lime plaster provide breathability, warmth and moisture control.

• Do I need planning permission for insulation?

  Internal works do not normally need it, but external insulation or roof changes may. Check with your local authority.

• How much does insulation cost in London?

  Costs vary widely, but expect around £90–£150 /m² for internal wall insulation and £70–£120 /m² for lofts, excluding finishes.