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Other Consultancy Services that are sometimes required.

other consultants home extensions high wycombeBelow is a list of external consultancy services that can 'sometimes??' be required for a building project depending upon its complexity.

Although CHP handle the Architectural Design and Construction elements, sometimes other consultants are required to assist you in obtaining the required Planning and Building Control Consents. Some are legal requirements that the building owner has to comply with.

All these services (if required) are pulled together and administered by CHP but they will be paid for directly at cost by the engaging client. CHP does not make any margin on the use of external consultants. CHP has access to a wide range of these external consultants whom he has work with over the years.

Should any of these services be required for you particular project they will be identified and costed in right at the start within my 'Initial Site Meeting Service' - hence the value of such an initial assessment of your works. 


Planning stage - Viability report - Only usually required for loss of commercial sites when converted to residential use (eg pubs). Never for home extension work. Read more....

Planning stage - Wildlife impact assessment report - Only usually required when a scheme is within an SSI or there are known protected wildlife that could be affected by the build (eg bats and removal of a roof structure). Most councils will accept a simple 'check list tick box' assessment of the site at no extra consultancy fee. Read more....

Planning stage - Flood risk assessment report - Only usually required when developing within the official flood plain. Not usually required for domestic extension work. Read more....

Planning stage - Historic assets impact assessment report - Only usually required when developing within a conservation area. Only usually required as a separate stand alone report when large schemes are proposed for new or additional housing as an example. For domestic home extension work this can usually be catered for within CHP's Design & Access Statement at no extra fee. Read more....

Planning stage - Highways and new access impact assessment - Only usually required for new housing schemes or where an existing poor access is intensified. Not usually required for domestic home extension schemes. Read more....

Building Regulations stage - Structural Engineers calculations - Usually required for most building works. Very rare for a set of building works not to require the involvement of a structural engineer.  Read more.....

Building Regulations stage - SAP Thermal proving calculations - Commonly known as SAP assessments. Always required for new and additional housing. Also required for home extensions if the new glazing area exceeds 25%. Read more.....

Building Regulations stage and throughout the construction phase - Code level homes - Sometimes new homes are to be built to a code level or some other eco-homes assessment admin. system. Not applicable to domestic home extension works.

Just prior to construction stage - Party Wall Act Awards - If your new building works are within 6M of a party wall or 3M of a neighbours wall or your works affect a party wall or floor then you will need to comply. A formal Party Wall Surveyor is usually required to administer the party wall awards.  This can be applicable to any or all building works.  Read more.....

Just prior to construction stage - Compliance with CDM Regulations - If your scheme is large then you will need to ensure that a Health and Safety person is employed to monitor the works and design.  All building owners have responsibilities with regard to ensuring health and safety during the design and build.  Most home extensions or domestic works not exceeding a certain size are exempt. Read more.....

Construction stage - pre-completion testing - sound - Only required for new housing having a party wall or floor. Not required for domestic home extensions.  Read more..... 

Construction stage - pre-completion testing - air tightness - Air pressure testing only required for new housing. Not required for domestic home extensions.   Read more.....  

 

 

 

 

 

 

 

 

 

 

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Architectural and Building Design Services - for planning permission and building regulations within Marlow, High Wycombe, Maidenhead, Bucks, Berks and Oxon areas.

Residential development for household extensions, conversions and new dwellings.

Measured surveys and roof inspection reports. Drawing plans on cad and specifications for planning permission, planning consent, planning approval, local authority approvals, building surveys and party wall act.

Chartered Architectural Technologists belong to CIAT (the Chartered institute of Architectural Technologists).

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