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Garage/Outbuilding/Annex Conversion

PLANNING DRAWINGS WITHIN 72 HOURS - APPROVAL RATES 99% Trusted by 5,000+ homeowners ⭐⭐⭐⭐⭐

Outbuilding & Garden Room Plans & Drawings from £595

Planning Permission • Permitted Development • Building Regulations

Planning Drawings
from £595

Planning drawings, application submission and full planning agent service included.

  • Garden Rooms . Garages . Outbuilding . Conservatory

Building Regs Drawings from £595

Detailed Building Regulations drawings and specifications for builder quotes and Building Control submission, with application management available.

  • Garden Rooms . Garages . Outbuilding . Conservatory

Planning + Building Regs from £995
SAVE £195

Complete Planning and Building Regulations drawing packages, including application submission and management.

  • Garden Rooms . Garages . Outbuilding . Conservatory

Professional drawings for outbuildings, garden rooms, studios, gyms and home offices. Permitted Development Class E specialists. Fast turnaround, fixed pricing, and full council submission for planning or lawful development.

  • • Fast turnaround
  • • Clear pricing
  • • Planning‑officer‑friendly

Outbuilding Conversions

Professional drawings for outbuildings, garden rooms, studios, gyms and home offices. Specialists in Permitted Development Class E and full planning applications where required.

SMARTePLANS® Outbuildings

Outbuilding & Garden Room Drawings

Why Choose SMARTePLANS® for Your Outbuilding or Garden Room?

  • Fast, accurate architectural drawings

  • Permitted Development Class E specialists

  • Planning permission or PD compliance guaranteed

  • Fixed pricing with no hidden extras

  • Full application management with your local council

  • Building Regulations packs available

  • 100% digital workflow — no site visit needed

OUTBUILDINGS SMARTePLANS®

Types of Outbuildings We Cover

  • Garden rooms

  • Home offices

  • Studios

  • Gyms

  • Workshops

  • Hobby rooms

  • Detached annexes (planning required)

  • Timber outbuildings

  • Composite garden rooms

  • Concrete raft slab foundations

Permitted Development (Class E) Compliance

We assess your outbuilding against:

  • Height limits (2.5m max within 2m of boundary)

  • Total area limits

  • Use restrictions (incidental vs primary living)

  • Conservation area rules

  • Green belt constraints

  • Listed building curtilage rules

  • Placement within the garden

  • Roof design and materials

If your outbuilding qualifies under Permitted Development, we prepare a Lawful Development Certificate. If it requires planning permission, we manage the full application.

What You Get

  • Existing site plan

  • Proposed site plan

  • Floor plans

  • Elevations

  • Roof plan

  • Section drawings

  • PD compliance check

  • Planning statement (if required)

  • Full council submission

Our Process

  1. Upload photos + measurements

  2. We produce your drawings

  3. You approve the draft

  4. We submit to your council

  5. We manage the entire application

Start your outbuilding or garden room drawings today — fixed price, fast turnaround.Trusted by 5,000+ homeowners ⭐⭐⭐⭐⭐

GET A FREE QUOTE

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99% PLANNING APPROVAL & 100% ALL OTHER APPLICATIONS

Most extension projects require Building Regulations approval in addition to planning or permitted development considerations.

Our approval success rates speak for themselves, don't leave it to chance, contact us today!

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