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Frequently Asked Questions
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Frequently Asked Questions

General

a

Can a conservatory be erected on top of a first floor extension?

It is possible to build a conservatory on top of an extension provided: -Local Authority Planning Permission has been granted – Local Authority Building Control are content with respect to all the relevant parts of the Building Regulations. Conservatories at first-floor level are not exempt from the Building Regulations.

a

Timber sizes for floor joists – Where can I obtain the timber sizes for floor joists and roofing members that are no longer directly contained in the current version of Approved Document A?

This information is contained in the guidance document published by the Timber Research and Development Association (TRADA) titled: – ‘Span tables for solid timber members in floors, ceilings and roofs (excluding trussed rafter roofs) for dwellings’, obtainable from:

TRADA Technology Ltd,
Chiltern House
Stocking Lane
Hughenden Valley
High Wycombe
Buckinghamshire
HP14 4ND

Or alternatively technical guidance is given in British Standard BS 8103 Part 3 2009 ‘Structural design of low-rise buildings – Code of practice for timber floors and roofs for housing’, obtainable from:

British Standards Institution
389 Chiswick High Road
London
W4 4AL

a

What needs to be done to create a basement in an existing or new house?

Basements require both Planning Permission and Building Regulations approval whether constructed as part of a new property or as a retrofit to an existing property. You will need to consult your Local Authority Planning and Building Control offices
The Basement Information Centre publishes a useful industry guide ‘Basements for dwellings’ on basement design and construction and they can be contacted at the following address:
The Basement Information Centre
Riverside House
4. Meadows Business Park
Station Approach
Blackwater
Camberley
Surrey
GU17 9AB
www.basements.org.uk

Technical

Part A - Structure

a

Can a conservatory be erected on top of a first floor extension?

It is possible to build a conservatory on top of an extension provided: -Local Authority Planning Permission has been granted – Local Authority Building Control are content with respect to all the relevant parts of the Building Regulations. Conservatories at first-floor level are not exempt from the Building Regulations.

a

Timber sizes for floor joists – Where can I obtain the timber sizes for floor joists and roofing members that are no longer directly contained in the current version of Approved Document A?

This information is contained in the guidance document published by the Timber Research and Development Association (TRADA) titled: – ‘Span tables for solid timber members in floors, ceilings and roofs (excluding trussed rafter roofs) for dwellings’, obtainable from:

TRADA Technology Ltd,
Chiltern House
Stocking Lane
Hughenden Valley
High Wycombe
Buckinghamshire
HP14 4ND

Or alternatively technical guidance is given in British Standard BS 8103 Part 3 2009 ‘Structural design of low-rise buildings – Code of practice for timber floors and roofs for housing’, obtainable from:

British Standards Institution
389 Chiswick High Road
London
W4 4AL

a

What needs to be done to create a basement in an existing or new house?

Basements require both Planning Permission and Building Regulations approval whether constructed as part of a new property or as a retrofit to an existing property. You will need to consult your Local Authority Planning and Building Control offices
The Basement Information Centre publishes a useful industry guide ‘Basements for dwellings’ on basement design and construction and they can be contacted at the following address:
The Basement Information Centre
Riverside House
4. Meadows Business Park
Station Approach
Blackwater
Camberley
Surrey
GU17 9AB
www.basements.org.uk

Part B - Fire Safety

a

Can a conservatory be erected on top of a first floor extension?

It is possible to build a conservatory on top of an extension provided: -Local Authority Planning Permission has been granted – Local Authority Building Control are content with respect to all the relevant parts of the Building Regulations. Conservatories at first-floor level are not exempt from the Building Regulations.

a

Timber sizes for floor joists – Where can I obtain the timber sizes for floor joists and roofing members that are no longer directly contained in the current version of Approved Document A?

This information is contained in the guidance document published by the Timber Research and Development Association (TRADA) titled: – ‘Span tables for solid timber members in floors, ceilings and roofs (excluding trussed rafter roofs) for dwellings’, obtainable from:

TRADA Technology Ltd,
Chiltern House
Stocking Lane
Hughenden Valley
High Wycombe
Buckinghamshire
HP14 4ND

Or alternatively technical guidance is given in British Standard BS 8103 Part 3 2009 ‘Structural design of low-rise buildings – Code of practice for timber floors and roofs for housing’, obtainable from:

British Standards Institution
389 Chiswick High Road
London
W4 4AL

a

What needs to be done to create a basement in an existing or new house?

Basements require both Planning Permission and Building Regulations approval whether constructed as part of a new property or as a retrofit to an existing property. You will need to consult your Local Authority Planning and Building Control offices
The Basement Information Centre publishes a useful industry guide ‘Basements for dwellings’ on basement design and construction and they can be contacted at the following address:
The Basement Information Centre
Riverside House
4. Meadows Business Park
Station Approach
Blackwater
Camberley
Surrey
GU17 9AB
www.basements.org.uk

Part C - Site preparation and resistance to contaminates and moisture

a

Can a conservatory be erected on top of a first floor extension?

It is possible to build a conservatory on top of an extension provided: -Local Authority Planning Permission has been granted – Local Authority Building Control are content with respect to all the relevant parts of the Building Regulations. Conservatories at first-floor level are not exempt from the Building Regulations.

a

Timber sizes for floor joists – Where can I obtain the timber sizes for floor joists and roofing members that are no longer directly contained in the current version of Approved Document A?

This information is contained in the guidance document published by the Timber Research and Development Association (TRADA) titled: – ‘Span tables for solid timber members in floors, ceilings and roofs (excluding trussed rafter roofs) for dwellings’, obtainable from:

TRADA Technology Ltd,
Chiltern House
Stocking Lane
Hughenden Valley
High Wycombe
Buckinghamshire
HP14 4ND

Or alternatively technical guidance is given in British Standard BS 8103 Part 3 2009 ‘Structural design of low-rise buildings – Code of practice for timber floors and roofs for housing’, obtainable from:

British Standards Institution
389 Chiswick High Road
London
W4 4AL

a

What needs to be done to create a basement in an existing or new house?

Basements require both Planning Permission and Building Regulations approval whether constructed as part of a new property or as a retrofit to an existing property. You will need to consult your Local Authority Planning and Building Control offices
The Basement Information Centre publishes a useful industry guide ‘Basements for dwellings’ on basement design and construction and they can be contacted at the following address:
The Basement Information Centre
Riverside House
4. Meadows Business Park
Station Approach
Blackwater
Camberley
Surrey
GU17 9AB
www.basements.org.uk

Part E - Resistance to the passage of sound

a

Can a conservatory be erected on top of a first floor extension?

It is possible to build a conservatory on top of an extension provided: -Local Authority Planning Permission has been granted – Local Authority Building Control are content with respect to all the relevant parts of the Building Regulations. Conservatories at first-floor level are not exempt from the Building Regulations.

a

Timber sizes for floor joists – Where can I obtain the timber sizes for floor joists and roofing members that are no longer directly contained in the current version of Approved Document A?

This information is contained in the guidance document published by the Timber Research and Development Association (TRADA) titled: – ‘Span tables for solid timber members in floors, ceilings and roofs (excluding trussed rafter roofs) for dwellings’, obtainable from:

TRADA Technology Ltd,
Chiltern House
Stocking Lane
Hughenden Valley
High Wycombe
Buckinghamshire
HP14 4ND

Or alternatively technical guidance is given in British Standard BS 8103 Part 3 2009 ‘Structural design of low-rise buildings – Code of practice for timber floors and roofs for housing’, obtainable from:

British Standards Institution
389 Chiswick High Road
London
W4 4AL

a

What needs to be done to create a basement in an existing or new house?

Basements require both Planning Permission and Building Regulations approval whether constructed as part of a new property or as a retrofit to an existing property. You will need to consult your Local Authority Planning and Building Control offices
The Basement Information Centre publishes a useful industry guide ‘Basements for dwellings’ on basement design and construction and they can be contacted at the following address:
The Basement Information Centre
Riverside House
4. Meadows Business Park
Station Approach
Blackwater
Camberley
Surrey
GU17 9AB
www.basements.org.uk

Part G - Sanitation, hot water safety and water efficiency

a

Can a conservatory be erected on top of a first floor extension?

It is possible to build a conservatory on top of an extension provided: -Local Authority Planning Permission has been granted – Local Authority Building Control are content with respect to all the relevant parts of the Building Regulations. Conservatories at first-floor level are not exempt from the Building Regulations.

a

Timber sizes for floor joists – Where can I obtain the timber sizes for floor joists and roofing members that are no longer directly contained in the current version of Approved Document A?

This information is contained in the guidance document published by the Timber Research and Development Association (TRADA) titled: – ‘Span tables for solid timber members in floors, ceilings and roofs (excluding trussed rafter roofs) for dwellings’, obtainable from:

TRADA Technology Ltd,
Chiltern House
Stocking Lane
Hughenden Valley
High Wycombe
Buckinghamshire
HP14 4ND

Or alternatively technical guidance is given in British Standard BS 8103 Part 3 2009 ‘Structural design of low-rise buildings – Code of practice for timber floors and roofs for housing’, obtainable from:

British Standards Institution
389 Chiswick High Road
London
W4 4AL

a

What needs to be done to create a basement in an existing or new house?

Basements require both Planning Permission and Building Regulations approval whether constructed as part of a new property or as a retrofit to an existing property. You will need to consult your Local Authority Planning and Building Control offices
The Basement Information Centre publishes a useful industry guide ‘Basements for dwellings’ on basement design and construction and they can be contacted at the following address:
The Basement Information Centre
Riverside House
4. Meadows Business Park
Station Approach
Blackwater
Camberley
Surrey
GU17 9AB
www.basements.org.uk

Part M - Access to and use of buildings

a

Can a conservatory be erected on top of a first floor extension?

It is possible to build a conservatory on top of an extension provided: -Local Authority Planning Permission has been granted – Local Authority Building Control are content with respect to all the relevant parts of the Building Regulations. Conservatories at first-floor level are not exempt from the Building Regulations.

a

Timber sizes for floor joists – Where can I obtain the timber sizes for floor joists and roofing members that are no longer directly contained in the current version of Approved Document A?

This information is contained in the guidance document published by the Timber Research and Development Association (TRADA) titled: – ‘Span tables for solid timber members in floors, ceilings and roofs (excluding trussed rafter roofs) for dwellings’, obtainable from:

TRADA Technology Ltd,
Chiltern House
Stocking Lane
Hughenden Valley
High Wycombe
Buckinghamshire
HP14 4ND

Or alternatively technical guidance is given in British Standard BS 8103 Part 3 2009 ‘Structural design of low-rise buildings – Code of practice for timber floors and roofs for housing’, obtainable from:

British Standards Institution
389 Chiswick High Road
London
W4 4AL

a

What needs to be done to create a basement in an existing or new house?

Basements require both Planning Permission and Building Regulations approval whether constructed as part of a new property or as a retrofit to an existing property. You will need to consult your Local Authority Planning and Building Control offices
The Basement Information Centre publishes a useful industry guide ‘Basements for dwellings’ on basement design and construction and they can be contacted at the following address:
The Basement Information Centre
Riverside House
4. Meadows Business Park
Station Approach
Blackwater
Camberley
Surrey
GU17 9AB
www.basements.org.uk

Case Studies

Bakery-Fit-Out
Bakery Fit-Out, Victoria SW1W
All Building Control has been involved on a full fit-out from an old shop to create a ground and second floor famous American Bakery in the heart of London.
Change-of-Use-Commercial
Retail Fit-Out, St Paul's EC4M
This full fit-out has been carried out for All Building Control for a British retailer specialising in women's activewear.
Retail-Fit-Out
Shop Fit-Out, Mayfair W1S
This fit-out in a famous Mayfair area creates the new showroom for the firm in London.
Shop-Fitout
Change of Use Commercial, Hayes UB3
All Building Control has been involved in this change of use scheme, including the extension of an outside car park and create a car service workshop within the existing industrial warehouse.
Shop-Fitout-Clifford-St
Shop Fit-Out, Mayfair W1
In the heart of Mayfair this project includes the refurbishment of a maisonette and a retail unit.
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All Building Control is London based and nationwide, some of our areas include...

  • London
  • City Of London
  • Kensington
  • South Kensington
  • Chelsea
  • Soho
  • Knightsbridge
  • Westminster

All Building Control is London based and nationwide, some of our areas include...

  • London
  • City Of London
  • Kensington
  • South Kensington
  • Chelsea
  • Soho
  • Knightsbridge
  • Westminster

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Declaration and Request for Final Certificate by Client, Principal Designer, and Principal Contractor

1) I/we confirm that I/we have fulfilled our obligations in respect of Principal Designer / Principal Contractor as defined in Regulation 16E of The Building (Approved Inspector etc.) Regulations 2010 and Part 2A (duty holders and competence) of the Building Regulations 2010 (as amended). As far as I/we are reasonably and practicably able to ascertain, the works, to the best of our knowledge, comply with the Building Regulations. I/we therefore formally request issue of the Final Certificate.

2) I/we confirm that as the person carrying out the work, I/we have passed all pertinent fire safety information to the responsible person (RP) as required by Regulation 38 of the Building Regulations such that they may adequately and reasonably fulfil their ongoing obligation under the RR(FS)O.

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