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Loft Conversion & Rear Dormer Drawings & Prices
For loft conversions and rear-dormer projects across Milton Keynes, London and the surrounding counties.
Price from
£1395
Planning permission
A complete set ready for your planning submission:
- Measured survey of your existing roof space and property
- Proposed plans, sections and elevations, including dormer design
- Permitted-development check — many lofts don't need full planning, and we'll tell you upfront
- All documents prepared and submitted; we liaise with the council through to decision
Price from
£895
Structural calculations and drawings
Prepared and signed by a qualified structural engineer:
- New floor joists, steel beams, ridge/dormer support and load paths designed properly
- Steel sizing, padstones and connection details
- Builder-ready and accepted by Building Control
Price from
£695
Building regulation drawings
The technical drawings your builder and Building Control actually build from:
- Technical drawings for floor structure, staircase, headroom, insulation and fire escape
- Roof, dormer and construction detailing to Building Control standards
- Coordinated with your structural calculations
Price from
£150
Milton Keynes
Site Survey
- Full measured survey of your existing property using laser/point-cloud tools
- Accurate to the millimetre, the foundation every good drawing is built on
- Outside Milton Keynes: from £275 (covers travel and time on site)
Planning submission fees
(paid to the local authority, not to us)
These are statutory fees set by your council, separate from our drawing fees:
- Permitted Development application: £349 (not included)
- Full householder planning application: £548 (not included)
- We handle the submission and correspondence on your behalf.
A well-designed loft conversion is one of the highest returns per pound you can spend on a home, but headroom, staircases and roof structure leave no room for guesswork. Our pricing is competitive and matched to the quality of the work: enough to do it properly, never inflated.
Planning drawings from £1,395
Fixed price. No hourly surprises. Quote confirmed before we start.
What each service costs
The Complete Approval Pack: from £2695
Everything you need from idea to approved-and-buildable, bundled and discounted:
Planning drawings + Building Regulation drawings + Structural calculations + Measured survey, bundled and discounted.
Lofts live or die on the details. Staircase position, headroom, dormer structure. One coordinated team gets those right the first time, at one fixed price, from idea to approved and buildable.
Why homeowners choose AL-Haitham
- 15+ years and 300+ completed projects: you're not paying for someone's learning curve [CONFIRM figures]
- Autodesk-Certified Revit & point-cloud technology: faster, more accurate drawings, fewer errors
- Fixed, transparent pricing: you know the full cost before we lift a pencil
- One team, start to finish: planning, building regs and structural, all coordinated so nothing falls through the cracks
Ready to unlock your loft?
Start free: Try our 60-second extension cost calculator.
Then: Book your £195 Feasibility Blueprint:
planning-risk check, concept direction and costs, 100% credited to your project if you go ahead.
Prefer to talk? WhatsApp us on +44 7404 086195.
Get a free quote
WhatsApp: +44 74040 86195
E-mail: contact@al-haitham.co.uk
Address: Office F7, Gloucester House, 399 Silbury Blvd, Milton Keynes MK9 2AH