From the team behind Hampstead Renovations · Est. 2009 · Learn more
Case StudyFrognal, NW3May 2024

Garden Studio & Landscaping, Frognal

Construction of a timber-clad garden studio for use as a home office and occasional guest suite, combined with a full garden redesign including natural stone terrace, raised beds, and lawn restoration. The studio sits in the garden of a Victorian villa in Frognal Conservation Area.

Project Type

Garden Studio + Landscaping

Duration

6 weeks

Project Value

£48,000

The Challenge

The garden is south-west facing but shaded by a large mature oak (subject to Tree Preservation Order) which significantly constrained the studio position. Planning required careful navigation — the conservation area meant Permitted Development limits were tighter than standard. The studio had to be positioned to avoid the oak's root protection area and canopy drip line as required by Camden's tree officer.

Our Solution

We worked with an arborist to produce a root protection area survey and tree impact assessment satisfying Camden's tree officer. The studio position was optimised to maximise light while remaining outside the protected zones. A lightweight foundation system (Techno Metal Post screw piles) was specified to avoid any excavation near the oak roots. The landscaping design incorporated the oak as a central feature.

Results

  • Camden tree officer approval obtained within 2 weeks
  • Studio built without a single root protection area violation
  • 25m² insulated garden studio with underfloor heating
  • Full electrics (sockets, lighting, EV point) and Cat6 internet
  • Natural stone terrace (Indian sandstone) 40m²
  • Raised kitchen garden beds in reclaimed brick
  • Lawn restoration with new topsoil and turf

Key Features

  • Screw-pile foundation system — no excavation near oak
  • Timber-clad exterior, anthracite grey — conservation area approved
  • Triple-glazed floor-to-ceiling glazing, south-facing
  • Underfloor heating, MVHR ventilation
  • Cat6 cabling and high-speed internet connection
  • Natural sandstone terrace with reclaimed brick edging

Specification

ItemSpecification
Studio structureSIPS (structural insulated panels) with cedar cladding, pre-stained
FoundationTechno Metal Post screw piles — no excavation required
GlazingTriple-glazed aluminium-framed doors and fixed panes, anthracite grey
TerraceIndian sandstone, Raj blend, 600×900mm — 40m²
Raised bedsReclaimed London stock brick, lime mortar, deep-fill with imported topsoil
LawnRotavated and levelled, 150mm imported topsoil, Rolawn medallion turf

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