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BUILDING PLANS & ESTIMATING€¦ · Roof construction to be concrete tiles to match existing, on 25 x 38mm swd treated tile battens, on layer breathable roofing felt. Rafter are to

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Page 1: BUILDING PLANS & ESTIMATING€¦ · Roof construction to be concrete tiles to match existing, on 25 x 38mm swd treated tile battens, on layer breathable roofing felt. Rafter are to
Page 2: BUILDING PLANS & ESTIMATING€¦ · Roof construction to be concrete tiles to match existing, on 25 x 38mm swd treated tile battens, on layer breathable roofing felt. Rafter are to
Page 3: BUILDING PLANS & ESTIMATING€¦ · Roof construction to be concrete tiles to match existing, on 25 x 38mm swd treated tile battens, on layer breathable roofing felt. Rafter are to

9 The Close

Holbury

Southampton

Hampshire

SO45 2PG

Email [email protected]

Tel 07795 692060

Building Plans & Estimating9 The CloseHolburySouthamptonSO45 2PG

Email [email protected] 07795 692060

BUILDING PLANS & ESTIMATING

EXISTING PLANS AND ELEVATIONS

PROPOSED SINGLE STOREY REAR

EXTENSION AND LOFT CONVERSION

at

30 Ashleigh Close

Butts Ash

Hythe

Southampton

SO45 3QP

Client

Mr & Mrs K Hall

Scale Bar 1:50 0 1 2 3 4 5 m

EXISTING GROUND FLOOR PLAN 1:50

Lounge

Bedroom

Bedroom

Bedroom

Dining Room

Bathroom

Kitchen

cup'd

EXISTING REAR ELEVATION 1:50 EXISTING SIDE ELEVATION 1:50

EXISTING SIDE ELEVATION 1:50

EXISTING FRONT ELEVATION 1:50

Page 4: BUILDING PLANS & ESTIMATING€¦ · Roof construction to be concrete tiles to match existing, on 25 x 38mm swd treated tile battens, on layer breathable roofing felt. Rafter are to

Scale bar 1:100 1 2 3 4 5m

Foundations to be 600mm wide trench fill to a depth

to suit site conditions. Internal walls are to be 450mm

wide. External walls below horizontal damp proof

course to be a 100mm wide external skin in facing

bricks, 100mm wide cavity filled with concrete up to

ground level, and an inner skin of 100mm solid

concrete blocks or common bricks. A horizontal

damp proof course is to be provided a minimum of

150mm above finished ground level.

New windows to be upvc with 28mm thick double

glazed units in low E glass. Trickle vents are to be

provided to window. Window to provide a minimum

of 1/20th area of floor in ventilation (opening areas).

All windows are to have an emergency escape

casement provided, ans is to provide an

unobstructed openable area that is at least 0.33m2

and at least 450mm high and 450mm wide. The

bottom of the openable area should not be more than

1100mm above the finished floor level. New front

door to be standard composite door by specialist

supplier / installer. All glazing in critical areas to be in

toughened glass. New sliding / folding doors to be in

aluminium construction to match window colour. New

feature glazing to 1st floor to be in aluminium to

match bi-fold doors.

Space heating by new gas boiler system. All gas

works ar to be carried out by and approved GAS

SAFE engineer. Copies of all completion certificates

are to be provided to building control upon

completion of the works. The existing radiator in the

hall is to be removed and relocated along the same

wall. A new sized radiator may be required.

All new Electrical works to be carried out by an

approved self-certicating Contractor or individual.

Smoke and heat mains interlinked detectors are to

be provided where shown on the floor plans. These

are to have battery back up.

Copies of completion certificates are to be provided

to building control upon completion of the works. The

existing main electrical fuse board is to be checked

for current regulation compliance. This is to be

changed if required to meet current regulations.

All new drainage to be in 100mm diameter upvc

pipework in a 150mm pea shingle bed and surround.

Where pipework passes through walls a 65 x 100mm

pre-stressed lintel is to be provided over. New

manholes if required to be 450mm diameter

polypropylene.

All new wastes to be 40mm diameter with deep seal

traps extending to 110mm diameter soil and vent pipes.

Soil and vent pipes to extend to a minimum of 900mm

above head of highest window. Air admittance valves

provided to svp's if not at end of run.

1st floor construction to be 47 x 100mm swd treated

joists at 400mm centres with 22mm moisture resistant

tg chipboard screwed and glued to the joists. Floor to

be insulated between perimeter walls with a layer of

150mm thick fibreglass insulation quilt laid between the

joists. Outside roof areas are to have 2No layers of

150mm thick fibreglass insulation quilt laid at 90deg to

each other.

New feature spiral staircase provided within new

ground floor extension extending to new first floor

construction.

Ground floor construction to be 65mm thick

fibre reinforced cement and sand screed, on

1200g polythene membrane, om 100mm thick

Celotex (or similar ) rigid insulation board, on

a layer of 1200g polythene damp proof

membrane which is to be dressed up external

walls to lap horizontal damp proof course, on

150mm beam and block flooring. A 150mm

clear void to be provided below beam and

block flooring for ventilation.

Beam and block flooring to be vented to

outside air with telescopic air vents at 2m

centres.

Roof construction to be concrete tiles to match

existing, on 25 x 38mm swd treated tile

battens, on layer breathable roofing felt. Rafter

are to be 47 x 150mm C16 at 400mm centres.

Note all of existing roof areas are to be

stripped and re-felted and old tiles re-used

wherever possible. 47 x 100mm swd treated

wall plate to be fixed to internal walls with 2.5

x 30mm galvanised mild steel straps at 2m

centres.

Guttering to be 100mm diameter half round

upvc gutter to 63mm diameter rainwater pipes.

External walls

To be 100mm external skin of facing ricks to

match existing, 100mm wide cavity filled with

Dritherm cavity wall insulation (or similar), and

an internal skin of 100mm lightweight

insulation blocks. Catnic (or similar) lintels

provided over new window openings with a

minimum end bearing of 150mm provided at

both ends. Cavities closed at reveals woth

Thermabate insulated cavity closer (or similar)

Where new external face brick walls meet

existing they are to be cut, toothed and

bonded to the existing. Block walls joined to

existing with galvanised wall starters. All

cavities are to remain continuous.Stainless

steel wall ties are to be provided at 4 per m2

with additional ties provided around new

openings.

New internal stud walls to be 47 x 100mm swd

C16 at 400mm centres, faced both sides with

a layer of 12.5mm thick plasterboard finished

with plaster. New stud wall in Utility area to be

clad in a layer of 12mm thick plywood or

11mm thick sterling baord.

Roof to be insulated with 100mm thick Celotex

or similar fixed between the rafters with the

bottom edge flush with the underside of the

rafters and a further layer 50mm thick fixed

across the outside edges of the studwork and

finished with a layer of 12.5mm tick duplex

plasterboard with a plaster setting coat finish.

Outside perimeter walls at 1st floor level to be

47 x 100mm swd treated at 400mm centres

and insulated and finished as main roof.

Internal stud walls to be 47 x 100mm swd

C16 studs at 400mm centres faced both

sides with a layer of 12.5mm thick

plasterboard with a plaster setting coat finish.

All stud walls to be insulated with 100mm

thick fibreglass insulation quilt placed

between the studs.

9 The Close

Holbury

Southampton

Hampshire

SO45 2PG

Email [email protected]

Tel 07795 692060

Building Plans & Estimating9 The CloseHolburySouthamptonSO45 2PG

Email [email protected] 07795 692060

BUILDING PLANS & ESTIMATING

PROPOSED PLANS AND ELEVATIONS

PROPOSED SINGLE STOREY REAR

EXTENSION AND LOFT CONVERSION

at

30 Ashleigh Close

Butts Ash

Hythe

Southampton

SO45 3QP

Client

Mr & Mrs K Hall

Scale Bar 1:50 0 1 2 3 4 5 m

PROPOSED GROUND FLOOR PLAN 1:50

PROPOSED SIDE ELEVATION 1:100

PROPOSED FIRST FLOOR PLAN 1:50

family area

PROPOSED REAR ELEVATION 1:100 PROPOSED SIDE ELEVATION 1:100 PROPOSED FRONT ELEVATION 1:100

Lounge

Bedroom

Bedroom

Bedroom

Utility Bathroom

Kitchen

Family

Boundary

roof tiling to

match existing

new facing to

match existing

Hall

New gable wall construction to be external

man made external boarding on 25 x 38mm

swd treated tile battens, on a layer of

breathable roofing felt. New walls to be 47 x

150mm swd treated at 400mm centres with

100mm thick Celotex provided between studs

and a further layer 50mm thick provided

across the inside face of the studs. This is

then to be covered with a layer of 12,5mm

thick duplex plasterboard with a plaster setting

coat finish.

New double rafters provided to both sides of

Velux rooflights. Velux rooflights to be

installed in accordance with manufacturers

instructions.

All new structural work to be in accordance

with structural engineer's details and

calculations which must be strictly adhered to.

New soakaways to be provided a minimum of

5m from any building with a minimum capacity

of 1m3. They are to be filled with standard

soakaway crates wrapped in geotextile

membrane.

PROPOSED ROOF PLAN 1:100

Page 5: BUILDING PLANS & ESTIMATING€¦ · Roof construction to be concrete tiles to match existing, on 25 x 38mm swd treated tile battens, on layer breathable roofing felt. Rafter are to

30 Ashleigh Close, Hythe, Southampton, SO45 3QP

DESIGN AND ACCESS STATEMENT

The proposal comprises of a single storey rear extension and loft conversion. The new rear extension

will be constructed in materials to match the existing. The current hipped at the front of the building

will be changed to a gable construction which will extend over the small area of the corner recessed

area. This will provide balance to the design when looking form each side. The rear gable will include

a new gable glazed area, which will project light to the new living area and extend into the open loft

area.

Access to the rear extension can be made from the driveway side of the property, and from within a

central entrance hall. The main entrance door position to the property will remain the same. There

are no changes to be made to the current car access and parking as the current areas are adequate

for the client’s requirements.