Precision hybrid construction — off-site manufacturing, on-site assembly
Full turnkey service — planning, building control, all consents managed
Minimal disruption — cleaner, faster build for you and your neighbours
Built to full building regulations — approved by independent building control inspectors
Any shape, size or layout — studio through to multi-bedroom configurations
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Your details
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2
Annexe details
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Not sure which to choose? Visit the Build Types section of the annexe page for more information on Caravan Act and Building Regulations compliant builds.
🧱 Standard finishes included. Composite, timber, cement fibre cladding or render is included as standard. Alternative finishes available on request. Brick slip? Select Masonry brick slip finish from the Ancillary Services & Works section below to include the uplift in your quotation.
Vita Modular
6 weeks
From commencement on site
63% faster
than traditional
vs
Traditional build
16 weeks
Typical on site duration
Guaranteed lead time — 4 weeks from contract
If you are targeting a specific start date please let us know above and we can advise on availability.
3
Annexe area (m²)
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Enter length and depth (external dimensions) to auto-calculate, or drag the slider.
Pricing is pro-rata per m² — typical sizes: 1 Bedroom Annexe 25–40m², 2 Bedroom Annexe 40–60m², 3 Bedroom Annexe 60–100m²+
Calculated area:24 m²
or use slider
24 m²
£1,950/m²
Fixed price (inc. 0% VAT)
£46,800
24m² x £1,950/m²
✓ Included
Foundations
Structurally engineered timber frame construction
External walls — composite or cement fibre cladding
Insulated warm flat EPDM roof
Fully painted walls and ceilings
Electrical installation and lighting
LVT or laminate flooring
UPVC or Aluminium windows and doors
10-year structural warranty
VAT at 0% (annexe build qualifies under the Caravan Act)
Building Regulations approval & inspection
✗ Excluded
Internal partitions and doors
Kitchen or bathroom installations
Planning application fees
Building control approval (not required — Caravan Act build)
Pitched tiled roof (flat EPDM included)
Loose or fitted furniture
External decking, terraces or canopies
Service and drainage connections
Many of these can be added in the Ancillary Works section below.
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Ancillary services and works
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We provide the essential accompanying works needed to deliver a complete modular building solution — all carried out as part of our full-package turnkey service.
Select any additional services or works required. All prices are indicative and inclusive of VAT.
Build type
Professional fees
Design fee — survey, design consultation and planning application
On-site survey, concept design and preparation / submission of 1 standard householder planning application (excludes application fees).
£2,000
Additional design fee for building control approval
Required if your annexe needs full building control approval.
£750
Independent building inspector fees
Inspection, certification and completion sign-off — budgeted figure, only required if building control approval applies.
£1,500
Internal fit-out
Internal partitions and doors
Stud partition walls and internal doors to form bedroom(s), bathroom and living areas.
£1,950
Bathroom installation (1st and 2nd fix)
Includes LVT floor, basin, toilet and shower tray with floor-to-ceiling bathroom wall panels and electric hot water outlet for sink. Client supplies 2nd fix fixtures (or Vita can supply at cost + 20% OHP). Tiling priced separately if required.
£3,995
Kitchen installation (1st and 2nd fix)
Includes plumbing and electrical first / second fix. Client supplies 2nd fix fixtures (or Vita can supply at cost + 20% OHP).
£4,495
Service connections
New mains water connection
New cold water mains supply connection to the annexe.
£750
Foul drainage connections
Assumes connections within 3m to existing manhole — longer runs or diversions priced bespoke.
£950
New armoured cable mains electrical connection
New SWA mains supply from main consumer unit to the annexe with new annexe consumer unit.
£1,500
Roof upgrade
Pitched tiled roof (upgrade from flat EPDM)
Subject to design — pitched tiled roof system in place of standard flat roof. Priced at 5% of base build cost (varies with annexe size).
£2,340
Exterior finish upgrade
Masonry brick slip finish
Full brick slip cladding to external elevations — priced at 7.5% of base build cost (varies with annexe size). Matches existing brickwork or a contemporary alternative.
£3,510
Optional extras
Quoted on request: solar panels, green roofs, air conditioning, underfloor heating, accessible features (hoists, emergency pull cords), external decking, terraces and canopies. Note any requirements in the additional notes below.
Ancillary services and works subtotal
£0
Total (inc. 0% VAT)
£46,800
Additional notes
5
Your quotation and next steps
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Quotation summary
Name—
Address—
Annexe type—
Area—
Fixed base price—
Ancillary works—
Total (inc. 0% VAT)£46,800
Next steps — how to progress your enquiry
Email us to get started
Send us your quotation to sales@vita-modular.co.uk, attach any existing plans if you have them and photos of the works area. We will organise a telephone consultation and / or site survey.
Arrange on site consultation
Following our on site consultation we can instruct our designer to prepare your drawings for planning and/or building control. Once approved, we will issue our complete fixed-price contract pack including detailed quotation, technical drawings and a confirmed installation date with fixed completion date.
Build starts within 4 weeks of contract
Our guaranteed lead time to start works on site is 4 weeks from contract. Most projects complete within 6 weeks on site.
One last thing
All prices are indicative and subject to site survey and final contract quotation. Ancillary works are budget figures — final costs confirmed on instruction. Base rate: £1,950/m² pro-rata. Annexe build qualifies for 0% VAT under the Caravan Act.