Modern Methods of Construction

Chelmer Housing Partnership

1 Highfield Close,

Danbury,

Essex.

CM3 4EG

Tel/Fax 01245-222692

Mobile 07973-835067

[email protected]

Glynn Williams Dip.Arch (Hons) RIBA Chartered Architects

FEASIBILITY STUDY

Using Modern Methods of Construction (MMC) to improvethe balance of CHP Housing Stock providing greater flexibilityand diversity for tenant accommodation.

25th October 2007 Issue C

Glynn William Dip.Arch (Hons) RIBA Chartered Architects


PRINCIPAL REASONS FOR USING MMC:

• Housing Stock imbalance• Economy• Certainty of cost• Certainty of delivery• Skills shortage• Quality of finished product• Revisions to Building Regulations• Government and environmental initiatives• Waste reduction and control




HOW TO ACHIEVE EFFICIENT MMC CONSTRUCTION:

• Minimise variety by standardisation• Ensure robust detailing• Collaborative working• Constantly monitor progress• Feedback




ADDED VALUE ACHIEVED FROM PRE-ASSEMBLY:

• Certainties:• Cost• Time• Quality

• Standard components:• Quicker manufacture• Design consistency

• Procurement:• Reduced site supervision• Simplified inspections• Less movement / shrinkage

• Environmental considerations:• Less wastage• Reduced impact on neighbourhood

• Site Safety• For operatives• For residents and general public




Folio 56 – Typical Unit

a.Standard MMC pod forming bedroom with optional built in wardrobe unit

b.Link section with roof drainage linked to existing guttering

c.Small paved plant area allowing shelter and natural light into existing room

b

a

c

Light tube(natural light)

Existing and proposed plansDESIGN STATEMENTDesign is based on standardised MMC pod size of4.0m x 3.3m bedroom (& poss. cup’d with “link” to existing property to retain daylight to existing rooms and providing small plant courtyard.Drainage from new roofs would run into existing gutter and downpipe.Potential to provide water-butt for garden watering

3D Visualisations

Alternative pod location for end of terrace properties- Access through store from hallway




Folio 57 – Typical Unit

a.Standard MMC pod forming bedroom with optional built in wardrobe unit

b.Link section with roof drainage linked to existing guttering

c.Small paved plant area allowing shelter and natural light into existing room

Existing and proposed plans 3D VisualisationsDESIGN STATEMENTDesign is based on standardised MMC pod size of4.0m x 3.3m bedroom (& poss. cup’d with “link” to existing property to retain daylight to existing rooms and providing small plant courtyard.Drainage from new roofs would run into existing gutter and downpipe.Potential to provide water-butt for garden watering

splay atwindow

c b

a



SPECIFIC CONSIDERATIONS REQUIRED FOR EACH PROJECT:

Whilst these previous examples are typical Folio 56, 57 & 71 types, each specific property being considered will require the followingspecific information:

• Levels:• Site levels• Floor levels• Eaves/roof levels

• Services:• Manholes• Rodding eyes• SWVP’s• RWP’s

• Localised conditions:• Outbuildings• Boundary types – hedges, fences, trees• Ground finish and conditions

• Statutory Approvals:• Planning Permission• Building Regulations Approval



Prepared in conjunction with Adroit Modular Building Systems

TYPICAL BUDGET COSTINGS AND PROCUREMENT:

Based on a typical unit, assuming simple “link” elements:• Architectural Services (following CHP instruction):

• Site Survey• Design• Planning Application• Building Regulations Application• Specification• Production Information

• Off Site Pre-Assembly:• Typical “link” incl. all fittings & services• 4m x 3.3m pod incl. all fittings & services

• On Site Activities:• Ground preparations and outhouse demolitions• Delivery and final positioning of pod• Installation of “link”• Services connections• Inspections / Handover

cost time

• £1,626

• 1d• 2d• 6-8wks• 2d - Building Notice

• £22,747• Following approval

• £2,535• 3d• 1d• 2d• 1d• 2d

£26,908 10 weeksExcl. 17.5% VAT


Modern Methods of Construction

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