What does completion on notice mean for some new builds?
Long stop dates, notice periods, and mortgage implications when developers require completion shortly after practical completion in England and Wales.
Published: 18 Apr 2026 · Updated: 18 Apr 2026 · 10 min read
Property Passport UK
See this information for your own home
Free address search across England and Wales. No account needed.
19.4 million searchable properties. EPC, flood risk, sold prices, planning, and more in one structured record per home.
Why this matters
Completion on notice is a contractual route where the developer gives notice to complete within a stated window; diaries, lending, and snagging plans must align tightly.
England and Wales
Rules and practice differ elsewhere in the UK; use this guide as orientation before professional advice.
Documents
Prefer primary paperwork over screenshots where lenders or insurers may ask again later.
Using Property Passport UK
Start from the address on [Property Search](/search). When you own or manage the home, [claim your Property Passport](/claim/start) and upload Documents with clear dates and sources. Browse more explainers in the [Property Guides library](/guides). This article is general information, not legal, tax, mortgage, or survey advice.
Essential Buying a Property guides
Related guides
What is completion on notice on new builds?
9 min readWhat Is a Memorandum of Sale and What Does It Mean for Your Purchase
6 min readWhat does surface water flood risk mean for buyers?
9 min readWhat does river and sea flood risk mean for buyers?
9 min readWhat does listed building status mean for buyers?
9 min readWhat does a low EPC rating mean for buyers?
9 min readRelated calculators
Search any property in England & Wales
EPC ratings, flood risk, sold prices, and planning data — free, instant, no login required.