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Your Interactive Planning Approved Guide

Home » Your Interactive Planning Approved Guide

PLANNING APPROVED?

Your Interactive Build Roadmap

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Part 1 — The 5 Essential Steps

Step 1 — Read Your Planning Decision Notice word-for-word. List every condition (pre-commencement, during-works, post-completion). Tick which must be discharged before a single brick is laid.

Step 2 — Apply for Building Regulations Full Plans approval. Separate from planning. Never use Building Notice for lofts or extensions.

Step 3 — Serve Party Wall notices (if terraced/semi). 2 months before start, under the Party Wall etc. Act 1996.

Step 4 — Appoint professionals in order: Structural Engineer, Building Control, Main Contractor, Party Wall Surveyor, NICEIC electrician and Gas Safe engineer.

Step 5 — Lock down scope, budget and timeline in writing. Fixed-price quote broken down by trade, payment schedule tied to milestones (max 20–30% upfront).

Part 2 — The 7 Costly Mistakes to Avoid

1All pre-commencement conditions are discharged.

2I did not choose the cheapest quote — I checked insurance, references, VAT status.

3I have a written contract (JCT Minor Works or FMB).

4I am not paying a large upfront deposit.

5Party Wall obligations resolved in writing.

6Building Control sign-off pathway booked.

7Any variations will be in writing only.

Part 3 — Preparation Checklist

Documents

Planning decision notice + stamped approved plans

List of planning conditions + status

Building Regulations Full Plans approval

Structural engineer calculations and drawings

Party Wall Award(s) if applicable

Signed contract + payment schedule

Public Liability insurance (£2m+) certificate

Employers’ Liability insurance (£10m) certificate

10-year structural warranty terms

Neighbour notification letters

Parking / skip / scaffolding council licences

Site readiness

Utilities located (CAT scan)

Site access and material storage cleared

Protection for existing finishes

Asbestos survey (pre-2000 property)

Temporary kitchen / bathroom arrangements

Part 4 — Typical London Timelines

Single-storey extension

3.5–5.5 months total

Double-storey extension

5–7.5 months total

Loft — Dormer

3–4.5 months total

Loft — L-shape / Mansard

4.5–6 months total

Garage conversion

1.5–2.5 months total

Full-house renovation

6.5–12 months total

Ready for your free quote?

We will review your planning decision, flag missed conditions, and give you a written fixed-price quote within 72 hours.

Book My Free Consultation →

☎ 020 7971 1318 · WhatsApp · info@fixiz.co.uk

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Mon to Fri: 8am to 6pm
Saturday: 8am to 1pm
Sunday: Closed

Areas we Cover

Greater London & all areas within and around the M25.

Fixiz LTD

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Registered Address: 36 Royal Drive.
London
N11 3FL

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Expert loft conversions, house extensions, and garage conversions in London and the M25 area.

Chocolate Factory 2, 4 Coburg Road, London, N22 6UJ

020 7971 1318

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