PLANIT

Professional planning drawings.
Without the professional fees.

£297 Complete drawing package
1hr From start to download
10 Professional sheets
📐 Planning compliant
🗺️ OS MasterMap data
🏠 PD rules built in
📄 PDF + DXF output
🗺️
Your house, pre-drawn We pull your building footprint from OS MasterMap + Google Maps. Your property appears on screen before you measure a single wall.
📏
Measure with a tape measure No specialist tools. Just a £5 tape from B&Q. Input your room dimensions using our simple push-pull interface.
✅
Compliance built in 20 years of architectural expertise encoded as rules. Roof pitch, window heights, boundary setbacks — checked automatically.
📦
Download your package 10 professional sheets — plans, elevations, sections, site plan. Scaled, titled, ready to submit to your local planning authority.

Currently covering: single storey rear extensions, permitted development only. Conservation area detection included.

PLANIT Step 1 of 5
Your Property

Find your property

Enter your postcode and we'll pull your building footprint from Ordnance Survey data — no measuring required for the outline.

OS MasterMap + Google Maps
Footprint Width
7.2m
via OS MasterMap
Footprint Depth
9.4m
via OS MasterMap
Property Type
3-bed Semi
via AI analysis
Built
~1960s
via Street View AI
✅ Not in a conservation area. Permitted development rules apply.
PLANIT Step 2 of 5
House Type

Which is your house?

Pick the closest match. Don't worry about being exact — you'll adjust the dimensions in the next step.

🏘️
Victorian Terrace
Through hallway, front lounge, rear kitchen, outrigger
🏠
2-Bed Semi
Hallway, lounge, kitchen, 2 beds + bathroom
🏡
3-Bed Semi
Most common UK house type. Hallway, lounge, dining, kitchen
🏰
Detached
Detached house, any layout
🏚️
Bungalow
Single storey, all rooms on ground floor
🏗️
End Terrace
End of terrace, exposed side elevation
PLANIT Step 3 of 5
Dimensions

Measure your house

Take your tape measure and fill in what you can see. We've pre-filled estimates from your OS footprint data — just check and correct.

💡 Tip: Measure to the outside face of walls
🏠 Existing House
metres
metres
metres
metres
metres
metres from floor
📐 Proposed Extension
metres (max 3m semi)
metres
Roof Type
🔺
Mono Pitch
🏔️
Duo Pitch
⬛
Flat Roof
📐
Cat Slide
PLANIT Step 4 of 5
Compliance Check

Compliance Check

We've checked your proposed extension against permitted development rules. Here's what we found.

✓
Extension depth — 3.0m ✓
Within the 3m maximum for semi-detached properties under permitted development.
✓
Maximum height — 3.4m ✓
Single storey extension eaves height within the 4m maximum permitted development limit.
✓
Roof pitch vs windowsill — Clear ✓
Mono pitch at 15° does not conflict with first floor rear windowsill at 1.05m. No adjustment needed.
✓
Conservation area — Not applicable ✓
Your property is not in a designated conservation area. Standard permitted development rules apply.
!
Check your title deeds
Some properties have covenants or Article 4 directions that remove permitted development rights. Please check your title deeds before submitting.
✓
Extension width — Within boundary ✓
Extension width of 5.5m is within the overall house width of 7.2m. Side boundary setbacks appear adequate.
🎉
Looking good!
5 checks passed, 1 advisory note. Your extension is within permitted development rules.
PLANIT Step 5 of 5
Your Package

Your drawing package

10 professional sheets, ready to submit to your local planning authority.

£297
+ VAT — one-time payment, instant download
  • Site / block plan (1:1250 + 1:500)
  • Existing floor plans — ground + first floor
  • Existing elevations — front, rear, sides
  • Proposed floor plan + roof plan
  • Proposed elevations — rear + sides
  • Proposed section through extension
  • Title blocks, scale bars, north points on every sheet
  • Saved to your account for 12 months
➕ Add Building Control Package
Foundation spec, insulation, electrics, ventilation, fire detection — ready for your building regs application
+£297

Your Order

Planning drawings package £297
VAT (20%) £59.40
Total £356.40

By purchasing you confirm measurements are your own and you have checked for any covenants or Article 4 directions. PLANIT provides drawings only — planning approval is not guaranteed. Need help? 81 North Architecture can handle your full application.

PLANIT Complete
🎉
Drawings ready!
Your professional planning package is ready to download. Good luck with the application!

Download Your Package

📄
Planning Drawings — PDF
10 sheets · A3 · 1:50 & 1:500 scale · 4.2MB
→
📐
CAD File — DXF
Import into AutoCAD, Revit, ArchiCAD
→
🏗️
Building Control Package
Not included in this order — add for £297
+
📋 Next steps
1. Submit via Planning Portal (www.planningportal.co.uk)
2. Pay the council's application fee (~£206)
3. Allow 8 weeks for a decision
4. In a conservation area? Call 81 North Architecture