Completion Certificate For Extension Template for England and Wales

Create a bespoke document in minutes,  or upload and review your own.

4.6 / 5
4.8 / 5

Let's create your Completion Certificate For Extension

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

Get your first 2 documents free

Your data doesn't train Genie's AI

You keep IP ownership of your information

Key Requirements PROMPT example:

Completion Certificate For Extension

"I need a Completion Certificate For Extension for a two-storey residential extension in Manchester that was completed in March 2025, including specific references to energy efficiency compliance and new electrical installations."

Document background
The Completion Certificate For Extension is a vital document in the English and Welsh construction sector, required when any significant extension work has been completed on a property. It provides formal verification that the works have been carried out in accordance with current building regulations, planning permissions, and approved designs. The certificate is typically issued following final inspection by building control authorities and includes crucial details such as property information, work specifications, compliance statements, and relevant approval references. This document is essential for maintaining property records, ensuring legal compliance, and may be required during future property sales or refinancing.
Suggested Sections

1. Property Details: Full address and description of the property where extension was built

2. Works Description: Detailed description of the extension works completed

3. Compliance Statement: Declaration that works comply with approved plans and building regulations

4. Completion Date: Date when works were substantially completed

5. Building Control Reference: Reference numbers for building control applications and approvals

Optional Sections

1. Planning Permission Details: Reference to planning permission when required for works requiring planning approval

2. Party Wall Agreement Reference: Details of party wall agreements when works affected shared walls or boundaries

3. Conservation Area Compliance: Confirmation of compliance with conservation area requirements for properties in conservation areas

Suggested Schedules

1. Photographs: Photographic evidence of completed works

2. As-Built Drawings: Final drawings showing the completed extension as built

3. Building Control Certificates: Copies of building control certificates and approvals

4. Test Certificates: Relevant test certificates for electrical, gas, or other installations

Authors

Alex Denne

Head of Growth (Open Source Law) @ Genie AI | 3 x UCL-Certified in Contract Law & Drafting | 4+ Years Managing 1M+ Legal Documents | Serial Founder & Legal AI Author

Relevant legal definitions
Clauses
Industries

Building Regulations 2010: Primary legislation ensuring the extension meets current building standards including structural safety, fire safety, ventilation, and energy efficiency requirements

Building Act 1984: Framework legislation that provides the basis for building regulations and defines requirements for building control approval

Party Wall Act 1996: Legislation governing works affecting shared walls or boundaries, particularly relevant for attached properties or work near property boundaries

Town and Country Planning Act 1990: Ensures compliance with planning permission requirements and confirms the extension meets approved plans

Construction (Design and Management) Regulations 2015: Regulations covering health and safety requirements during construction and defining responsibilities of different parties involved in the project

Building (Approved Inspectors etc.) Regulations 2010: Legislation relevant when private building control inspectors are used, defining requirements for inspection and certification

Local Authority Building Control Requirements: Specific requirements set by the local authority for building control and inspection in their jurisdiction

Planning Conditions: Property-specific conditions attached to planning permissions that must be satisfied

Conservation Area Restrictions: Additional requirements and restrictions that apply if the property is located within a conservation area

Listed Building Considerations: Special requirements and restrictions that apply if the property is a listed building or affects the setting of listed buildings

Teams

Employer, Employee, Start Date, Job Title, Department, Location, Probationary Period, Notice Period, Salary, Overtime, Vacation Pay, Statutory Holidays, Benefits, Bonus, Expenses, Working Hours, Rest Breaks,  Leaves of Absence, Confidentiality, Intellectual Property, Non-Solicitation, Non-Competition, Code of Conduct, Termination,  Severance Pay, Governing Law, Entire Agreemen

Find the exact document you need

Site Completion Certificate

find out more

Service Completion Certificate

find out more

Roofer Certificate Of Completion

find out more

Project Completion Certificate

find out more

Partial Completion Certificate Building Control

find out more

Eyelash Certificate Of Completion

find out more

Elementary Completion Certificate

find out more

Electrical Completion Certificate

find out more

Course Completion Certificate

find out more

Contractor Completion Of Work Form

find out more

Completion Certificate Online

find out more

Completion Certificate For Extension

find out more

Completion Certificate Contractor

find out more

Civil Work Completion Certificate

find out more

Certificate Of Counseling Completion

find out more

Certificate Of Completion Online

find out more

Certificate Of Completion Of Specialist Training

find out more

Certificate Of Completion Marriage Counseling

find out more

Certificate Of Completion And Satisfaction

find out more

Certificate Of Appreciation For Project Completion

find out more

Certificate Of Acceptance And Completion

find out more

Certificate Of Academic Completion

find out more

Certificate Of Training Completion

find out more

Certificate Of Successful Completion Of Training

find out more

Certificate Of Successful Completion

find out more

Certificate Of Substantial Performance

find out more

Certificate Of Substantial Completion Form

find out more

Certificate Of Substantial Completion

find out more

Certificate Of Service Completion

find out more

Certificate Of Practical Completion

find out more

Architect Certificate Of Completion

find out more

Acceptance Certificate

find out more

Certificate Of Completion Anger Management

An official document under English law certifying successful completion of an anger management program.

find out more

Security Awareness Training Certificate Of Completion

An official document under English and Welsh law certifying completion of security awareness training.

find out more

Kindergarten Completion Certificate Printable

An official document under English and Welsh law certifying a child's completion of kindergarten education.

find out more

Elementary Certificate Of Completion

A legal document under English and Welsh law certifying the satisfactory completion of specified work or projects.

find out more

Printable Anger Management Certificate Of Completion

An official certificate under English and Welsh law verifying completion of an anger management program.

find out more

Certificate Of Partial Course Completion

An official document under English law certifying partial completion of an educational course or program.

find out more

Certificate Of Completion For Work Immersion

An official document under English and Welsh law certifying successful completion of a structured work experience program.

find out more

Certification Of Course Completion

A legal document under English and Welsh law confirming successful completion of a course or training program.

find out more

University Certificate Of Completion

An official document issued under English and Welsh law certifying successful completion of university studies.

find out more

Intern Completion Certificate

A formal document under English and Welsh law certifying the successful completion of an internship program, including duration, responsibilities, and achievements.

find out more

Interior Work Completion Certificate

A legal document under English and Welsh law certifying the completion of interior construction or renovation works to agreed specifications.

find out more

Certificate Of Completion Form

A formal document under English and Welsh law certifying the practical completion of construction works and triggering related contractual mechanisms.

find out more

Virtual Completion Certificate

A formal certificate under English and Welsh law confirming practical completion of construction works through remote inspection.

find out more

Certificate Of Completion Language

A formal document under English and Welsh law certifying the substantial completion of contracted works to the required standards.

find out more

Certificate Of Completion Nails

A formal document under English and Welsh law confirming the completion of professional nail services and treatments.

find out more

Continuing Education Certificate Of Completion

An official document under English and Welsh law certifying completion of continuing education or professional development coursework.

find out more

Student Certificate Of Completion

An official document under English and Welsh law certifying a student's successful completion of an educational program or course.

find out more

Substitute Teacher Training Certificate Of Completion

An official certification document under English and Welsh law confirming successful completion of substitute teacher training requirements.

find out more

Food Handler Certificate Of Completion

An official certification document under England and Wales law confirming successful completion of required food safety and handling training.

find out more

Solar Installation Completion Certificate

A formal document under English and Welsh law certifying the compliant completion of a solar power system installation.

find out more

Software Project Completion Certificate

A legal document under English and Welsh law certifying the successful completion and acceptance of a software development project.

find out more

Software Completion Certificate

A formal document under English and Welsh law certifying the successful completion and delivery of software development projects according to specified requirements.

find out more

Licensing Education Completion Certificate

An official document under England and Wales law certifying completion of professional licensing education requirements.

find out more

Engineer Certificate Of Completion

A formal document under English and Welsh law certifying the satisfactory completion of construction works by a qualified engineer.

find out more

Certificate Of Project Completion And Acceptance

A formal document under English and Welsh law certifying the successful completion and acceptance of project works by the client.

find out more

Certificate Of Completion Of Orientation

A formal document under English and Welsh law certifying an employee's successful completion of organizational orientation and required training.

find out more

Restoration Certificate Of Completion

A formal document under English and Welsh law certifying the successful completion of property restoration works to required standards and specifications.

find out more

Rehab Certificate Of Completion

An official document under English and Welsh law certifying successful completion of a rehabilitation program.

find out more

Community Service Certificate Of Completion

An official document under English and Welsh law confirming completion of court-ordered community service hours.

find out more

Certificate Of Completion Makeup

A formal document under English and Welsh law certifying the completion of construction or project works to the required standard.

find out more

Residency Completion Certificate

A legal document under English and Welsh law confirming the successful completion of a residential tenancy period and fulfillment of associated obligations.

find out more

Camp Completion Certificate

A formal document under English and Welsh law certifying the completion and compliance of camp facilities with all relevant regulations and specifications.

find out more

Building Construction Completion Certificate

A legal document under English and Welsh law certifying that building works have been completed in compliance with all relevant regulations and standards.

find out more

Installation Completion Certificate

A formal document under English and Welsh law certifying the successful completion and compliance of installation works.

find out more

Certificate Of Completion Of Service

A formal document under English and Welsh law that confirms the successful completion of contracted services and fulfillment of contractual obligations.

find out more

Roofing Certificate Of Completion

A legal document used in England and Wales certifying the successful completion of roofing works in compliance with building regulations and industry standards.

find out more

Work Acceptance Certificate

A formal document under English and Welsh law certifying the acceptance of completed work or services by the client.

find out more

Engineering Completion Certificate

A formal certificate under English and Welsh law confirming the completion of engineering works to specified standards and requirements.

find out more

Apprentice Completion Certificate

An official document under English and Welsh law certifying the successful completion of an apprenticeship program and associated qualifications.

find out more

Certificate Of Completion On The Job Training

A formal document under English and Welsh law certifying successful completion of workplace-based training programs.

find out more

Certificate Of Mechanical Completion

A formal document under English and Welsh law certifying that mechanical installations in a construction project meet specified requirements and are fully operational.

find out more

Certificate Of Apprenticeship

An official document under English and Welsh law certifying successful completion of an approved apprenticeship program.

find out more

Certificate Of Satisfactory Completion

A formal document under English and Welsh law confirming that contracted works have been completed satisfactorily.

find out more

Certificate Of Final Completion

A formal document under English and Welsh law certifying the complete and satisfactory completion of construction works.

find out more

Certificate Of Final Acceptance

A formal document under English and Welsh law confirming the final acceptance of completed works and fulfillment of all contractual obligations.

find out more

Certificate Of Completion Of Work

A formal document under English and Welsh law certifying that contracted works have been completed satisfactorily.

find out more

Certificate Of Partial Completion

A formal document under English and Welsh law certifying that a specified portion of construction works has achieved practical completion.

find out more

Download our whitepaper on the future of AI in Legal

By providing your email address you are consenting to our Privacy Notice.
Thank you for downloading our whitepaper. This should arrive in your inbox shortly. In the meantime, why not jump straight to a section that interests you here: https://www.genieai.co/our-research
Oops! Something went wrong while submitting the form.

Genie’s Security Promise

Genie is the safest place to draft. Here’s how we prioritise your privacy and security.

Your documents are private:

We do not train on your data; Genie’s AI improves independently

All data stored on Genie is private to your organisation

Your documents are protected:

Your documents are protected by ultra-secure 256-bit encryption

Our bank-grade security infrastructure undergoes regular external audits

We are ISO27001 certified, so your data is secure

Organizational security

You retain IP ownership of your documents

You have full control over your data and who gets to see it

Innovation in privacy:

Genie partnered with the Computational Privacy Department at Imperial College London

Together, we ran a £1 million research project on privacy and anonymity in legal contracts

Want to know more?

Visit our Trust Centre for more details and real-time security updates.