- +44 7392 202194
- info@casaframe.co.uk
CasaSteel
Light Steel Framed Buildings
LSF Garden Studios (Office / Gym / Hobby)
Fast, insulated work‑from‑home or leisure space with residential‑grade comfort.
Line‑up & pricing:
- 3×4 m (12 m²) — Kit supply‑only from £8,990 / Installed shell from £12,990 / Turnkey from £17,990
- 3×6 m (18 m²) — Kit supply‑only from £11,990 / Installed shell from £16,990 / Turnkey from £22,990
Notes:
- Shell = structure, exterior cladding, doors/windows, breathable wrap.
- Turnkey adds interior plasterboard/paint, flooring, sockets/lighting and basic heating.
LSF Microhome – 1 Bed
All‑season living pod with bathroom and kitchenette; ideal for annex/Airbnb.
Line‑up & pricing:
- 4×8 m (32 m²) — Kit supply‑only from £19,990 / Installed shell from £29,990 / Turnkey from £44,990
- 4×10 m (40 m²) — Kit supply‑only from £23,990 / Installed shell from £34,990 / Turnkey from £49,990
Notes:
- Turnkey pricing excludes appliances/furniture. Services, foundations and permissions are survey‑based
LSF Compact Home – 2 Bed
Efficient family layout with two bedrooms in a compact footprint.
Line‑up & pricing:
- 6×9 m (54 m²) — Kit supply‑only from £32,990 / Installed shell from £46,990 / Turnkey from £69,990
- 6×10 m (60 m²) — Kit supply‑only from £36,990 / Installed shell from £51,990 / Turnkey from £75,990
Notes:
- Turnkey includes internal partitions, insulation, electrics/plumbing first fix & finishes; final fit of sanitary/kitchen as an option pack.
LSF Workshop / Small Commercial Unit
Robust insulated shell for studios, trades and micro‑retail; configurable shutters/doors.
Line‑up & pricing:
- 5×8 m (40 m²) — Kit supply‑only from £24,990 / Installed shell from £36,990 / Turnkey from £49,990
- 6×10 m (60 m²) — Kit supply‑only from £34,990 / Installed shell from £48,990 / Turnkey from £66,990
Notes:
- Commercial M&E, catering extraction or fire strategy items are quoted to spec
Custom Units
Bespoke residential annexes, education/health micro‑units and site‑specific designs.
Line‑up & pricing:
- Contact us for an estimate.
Notes:
- Engineered to order with partner factories; full drawings, calcs and specification provided.
Specs, Options and Planning
Technical:
- Galvanised light gauge steel frame (e.g. S350GD Z275), CNC‑formed C/U sections.
- Typical wall build‑up: 89–140 mm studs, mineral wool insulation, OSB sheathing, vapour control and external cladding (composite, render board, fibre‑cement or metal).
- Roof: warm flat roof with EPDM/TPO or trapezoidal metal; insulated to target U‑values.
- Openings: Double‑glazed uPVC or aluminium windows/doors; low‑E glass.
- Services: Electrical first/second fix to BS 7671; plumbing packs available (PEX, insulated).
- Fire/Acoustics: Non‑combustible external claddings and mineral wool options; details to project spec.
- Design: Structural calcs, panel drawings and MEP routes supplied for approvals.
Popular Options:
- Kitchenette pack, bathroom pack (toilet, basin, shower, extractor).
- Heating/cooling: electric panel, IR heater or mini‑split heat‑pump.
- Exterior claddings: wood‑effect composite, metal, fibre‑cement, render finish.
- Roof skylight, canopies, decking and access ramps.
- Solar‑ready wiring and EV spur (on request).
Planning & notes:
Outbuildings under ~30 m² used as non‑habitable garden rooms may fall under Permitted Development (local rules vary). Habitable use (sleeping/bathroom/kitchen) typically requires Planning/Building Regulations approval. Foundations, drainage and utility connections are assessed during survey and quoted separately. Lead‑time guide: 4–10 weeks (scope & factory load dependent). Installation 2–10 days. Installed prices include VAT (20%). Supply‑only prices are ex VAT (ex‑works). Pricing is indicative and subject to site survey, access, foundations and service connections.