Marchbanks Architectural Design

I've worked in construction all my life, designing extensions, new houses, loft & garage conversions since leaving college. I give up to 1hr free consultations to homeowners in my immediate area. I am a LABC Partner so building control permissions are guaranteed. Any Structural calculations are carried out by a qualified MIStructE. My design and drawing work is carried out using AutoCAD - 2D unless otherwise specified. I have both public liability and professional indemnity insurance.


  1. Architecture
  2. CAD/Drawings

About Marchbanks Architectural Design

Eric Marchbanks has designed and project managed the building of new houses, new extensions, loft conversions, general refurbishment and re-ordering works and has wide experience in both the design and build of a variety of construction projects he is an LABC (Local area building control) Partner. As well as that he has worked on grade 1 and grade II listed buildings, Churches, Castles and Ancient Monuments including Work on St Nicholas Church where he was involved with working drawings, assisting with the structural integrity as well as project managing the works which were then awarded the King of Prussia Award. He has designed works on a wide range of properties for ordinary people like us to the very rich and famous.
Having been "born" into a family that owned and ran a construction company in Kent he attended Dover College school attaining 9 GCE "0" levels and 2 GCE "A" levels during which time in later school holidays he spent his time working with the tradesmen on his fathers company before going on to take Ond and Hnd in Building studies including design and structures. On finishing college and returning to work with his fathers company he was sent out initially with the carpenters for a year, then the bricklayers and plumbers to get an insight into site working and problems prior to going back into the office. This has given Eric a unique insight into designing with an eye to minimising structural complications with a view to saving the client costs. My good design can save more than the design work in builders costs. My design costs are often less than others.


Eric has 9 GCE "O" levels and 2 GCE "A" levels then Ond; Hnd in Building studies including design and structures, LABC (Local area building control) Partner.
He is a members of the FSB.

We offer full design facilities including submitting the design to planning with Design and Access statements, Flood risk assessments; We can including a statement of significance for listed buildings and an itemised statement of justification.
We are able if required to add additional details to planning application drawings for Building control application including structural calculations as necessary.
We use AutoCAD LT with plotting available to A1 (which is the largest plans size that most builders prefer to work off.).

We design anything from the smallest extension to full houses. We concentrate on making the initial surveys accurate and thus the plans, which we annotate with measurements to simplify for the builders on site to understand. This minimising the chance of costly mistakes by the builder or disagreements.
We are able to specify and compile and send out tender documents including issuing RIBA Domestic contracts.
Sometimes we are asked to be contact supervisors during the on-going building works and to deal with the builder direct to free up the customers time and reduce the stress of having to control items that the client may not be used to. Allowing them to get on with life whilst works proceed.
Our services are tailored to the clients wishes, so we do as much or as little of the above as a client might wish.
Our motto is design with thought, build with care.
We are able to design a "no frills" refurbishment, extension or house or add the necessary features to make the work completely individual to you.

The one thing we always consider is that this is for you and for your house. We will respect both and work to ensure that you are happy with the outcome.

As an extra, we also carry professional indemnity insurance for our work, which My Builder don't require sight of over and above that listed below


Professional Indemnity Insurance

Limit of indemnity: £250,000.00
Valid until: 18th Jul 2023

Public Liability Insurance

Limit of indemnity: £2,500,000.00
Valid until: 30th Jun 2023

Latest reviews

  • Outline plans

    Excellent service to date. Eric has been exceptionally helpful and very approachable. Thank you

  • Application to change of use class

    Mr. Marchbanks has been the most helpful consultant I have come across, he has good overall knowledge of what I wanted to achieve and gave me valuable suggestions that I did not think of before. He makes the process very easy to understand and is very supportive. Thank you.

  • Plans for Listed house conversion into flats

    Mr Marchbanks drew up plans for conversion of the ground floor of my house into a self-contained flat. In doing so, he drew my attention to the fact that the ground floor rooms should not be subject to a separate Council Tax assessment as short of the necessary Listed Building Consent they did not satisfy Fire Regulations. He made the requisite Application on my behalf, which was quickly granted on the above mentioned grounds. I am now in the process of reclaiming the £446.66 seemingly wrongly debited from my account by the Local Council: thank you Eric for an excellent job. (posted by James, Dorchester)

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