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Mansard Loft Conversion

  • 30 years experience
  • 10-year structural guarantee
  • Fixed fee quotation
  • 5% Scheduling discount
  • 500+ Successful projects

Full-width loft transformation for a Victorian terrace in Wimbledon

This Wimbledon terrace needed a major space upgrade without compromising the existing layout. The homeowners wanted a proper master suite rather than a tight loft room, with strong storage, good daylight and a calm finish. We delivered a mansard loft conversion to maximise usable floor area and create a genuinely spacious new storey.

With neighbouring properties close by, we supported the client through party wall requirements and coordinated approvals via planning permission. The build included structural works, a new staircase, upgraded insulation and careful fire safety detailing, with sign-off managed through Building Regulations.

  • Location :SW19 (Wimbledon)
  • Project Type :Mansard Loft Conversion
  • Duration :5 Months
  • Completion :18/10/2024
Mansard loft conversion in Wimbledon SW19 creating a master suite Roof works and mansard formation stage in Wimbledon SW19 Completed loft master bedroom in Wimbledon SW19 mansard conversion

What we did

Mansards require careful sequencing and strong site management. We agreed key dates early and maintained high standards across structure and finishing.

  • Design development for a full-width new storey and storage plan.
  • Planning coordination and neighbour considerations.
  • Party wall support and programme planning around close boundaries.
  • Structural works, new stairs, insulation and fire safety measures.
  • Second fix, bespoke storage, ensuite and final decoration.

"The team were organised and respectful throughout, which mattered a lot on a terrace. The final suite feels like a boutique hotel room and has made the whole house work better."

The Morgan Family - Wimbledon

Conclusion

This mansard conversion delivered a full master suite with comfortable headroom, excellent storage and a refined finish. By handling approvals, party wall considerations and programme management in one place, the homeowners achieved a smooth build and a standout result.

Ensuite finish and storage joinery in Wimbledon SW19 mansard loft conversion
Staircase and landing detail in Wimbledon SW19 loft conversion

Key Points

  • Mansard design maximised full-width usable loft space.
  • Party wall and neighbour considerations managed early.
  • Planning, structure and compliance coordinated in one programme.
  • High-quality finishes with integrated storage and ensuite.

Value Added

  • Major increase in floor area without sacrificing garden space.
  • Improved resale appeal with a true master suite.
  • Reduced homeowner stress through single-team accountability.
  • Better comfort through upgraded insulation and detailing.

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Mansard Loft FAQ's

In most cases, yes. Mansards involve significant roof alterations. We manage the process from drawings through submission. See: /services/planning-permission/.

If works affect a shared wall or boundary with neighbours, a party wall process may be required. We support homeowners through this stage. See: /services/party-wall-support/.

We plan deliveries, manage site rules, keep the frontage tidy and communicate key milestones to reduce friction and disruption.

Mansard conversions are more involved than many loft types, typically around 5 months depending on scope and access.

Yes. We manage structure, insulation, escape routes and inspections through to sign-off. See: /services/building-regulations/.

Yes. We provide a full design & build service with clear programme management. See: /services/design-and-build/.