Replacement of an existing worn out bungalow in the Lake District with a new build Passivhaus holiday home.

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Existing:

• Stunning location on north shore of Ullswater with view across lake to Hallin Fell.

• Existing bungalow built in late 1950s as staff accommodation for Outward Bound Centre; no architectural merit, modular build, no insulation, cold and damp.

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Brief:

• New home to have three bedrooms, oriented to take advantage of views.

• Simple form, highly energy efficient, low maintenance, robust.

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Planning:

• Located in World Heritage Site of National Park.​

• Replacement build to have similar footprint form and materials as existing property.

• Full permission granted August 2020.

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Proposals:

• New home to have three bedrooms, oriented to take advantage of views.

• Exceptional location and lake views have driven design concept.

• Simple rectangular, pitched roof form sits comfortably in the context.

• Improved accessibility by lowering internal floor level has allowed sufficient height for additional mezzanine floor at one end.

• Designed to certifiable Passivhaus Classic standard.

• Triple glazed windows and doors; quad glazed rooflights; larger windows on south and west elevations to maximise winter heat gain.

• Entirely timber frame, built as pre-fabricated and insulated panels in local factory.

• Roof and wall U-value 0.090W/m2K.

• Isoquick insulated raft and 60/40 concrete slab U-value 0.10W/m2K.

• Integrated in-roof PV panels powering Givergy battery storage, Mixergy dhw cylinder, radiant heating panels, Myenergi EV charge point.

• Full mechanical ventilation with heat recovery (MVHR).

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Progress:

• Demolition and site clearance started in January 2021.

• Isoquick insulation installed in half a day.

• Concrete poured February 2021.

• Timber frame panels erected, windows installed, first fix started March 2021.

• Intermediate airtightness test achieved n50 of 0.14 ach/h in April 2021 with all penetrations complete.

• First fix and plasterboard completed by mid May.  External render carrier boards, roof slating and PV panels mostly complete by mid May.

• June: plastering, decorations, tiling and kitchen installed.

• July: Final airtightness test confirmed n50 of 0.14 ach/h.

• August: 95% complete internally, external works in progress.

• January: 98% complete internally and external works remain in progress!

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Timber cladding in progress (now complete)

For now it's about the interior, but looking forward to having some greenery outside come the spring.