Home extension case studies

existing property front elevationCase study 1 – Remodelling and extending a semi-detached house

existing front elevationCase study 2 – Remodelling and extending a detached 1930’s house

Existing property rear elevationCase study 3 – Remodelling and extending a 1990’s terraced house

Case study 1 – Remodelling and extending a semi-detached house

Case study 1 shows the construction of a two storey home extension remodelling and extending the downstairs living spacecase studies and also enables the first floor to be remodelled to have four reasonable bedrooms, en-suite bathroom and spacious family bathroom.

The Proposal

existing layout semi detached home
Existing layout for remodelling and extending a semi-detached home


proposed layout semi-detached home
Proposed layout for extension and remodel of semi-detached home



existing property front elevation
Existing semi-detached property front elevation
existing rear elevation semi-detached remodel extension
Existing rear elevation semi-detached remodel and extension

Stage One Groundworks

Stage 2 – Brickworks 

Stage 3 – Roofing through to completion


Case study 2 – Remodelling and extending a detached 1930’s house

Case study 2  shows the construction of a two storey home extension to a detached 1930’s house which expands the downstairs to an open plan living space and kitchen, separate study, utility room, cloakroom and enables the first floor to be remodelled to have four good sized bedrooms, en-suite bathroom and family bathroom. The alterations have transformed a typical small family home to a spacious, modern light-filled house. Enjoy the video showing fabulous before and after shots!

The Proposal


Ground floor existing and proposed layout
Ground floor existing and proposed layout


First floor existing and proposed layout
First floor existing and proposed layout


existing front elevation
Existing house – front elevation


Existing house rear elevation
Existing house rear elevation

Case study 3 – Remodelling and extending a 1990’s terraced house

Case study 3 focuses on a 1990’s terraced home in Winchester and is being built as I write. A small single storey ground floor extension will enlarge the kitchen/dining area of the property, an overlarge ground floor shower room will be converted to a utility/cloakroom and the former dining room will become a playroom.

The Proposal


ground floor existing layout
Ground floor as existing layout
Ground floor proposed floorplan
Ground floor proposed layout
Existing property rear elevation
Existing rear elevation of property

The story so far…This project commenced at the beginning of February 2017 and has a tight build schedule as the owners are expecting their third child in April. Town Planning approval was straightforward with a modest, sympathetic  design. The garden is relatively small so the size of the extension was limited and therefore extends just 2 metres from the rear of the property.

Week commencing 12th March

The bi-fold doors are in, the roof slated and the gas boiler moved to the side wall (from the rear wall of the existing kitchen). It is anticipated that the rear wall of the existing kitchen will be demolished by the end of the week.

Bifold doors
Bi-fold doors installed, slate roof on and Velux windows in place
slate roof
Slate roof









Week commencing 26th March

This week has seen the wall between the extension and existing house demolished, some hefty steel beams put in to support the back wall, the first fix electrics and some additional plumbing. It is now beginning to look like a room! The family are surviving with a minimal kitchen in the playroom, sink in the former shower room, fridge in the garage and a kindly neighbour for freezer space. The only appliance left in the kitchen is the washing machine! With only 3 weeks to go until baby 3 arrives the builders are under pressure to get it finished.

steel beams
Steel beams supporting the existing back wall
bifold doors in place
Bi-fold doors in place
kitchen out
Old kitchen now removed







Week commencing 2nd April

The building inspector called early in the week and was happy with the beam and its supports. The builders have now plaster boarded the room in readiness for the kitchen units and tiled floor. Kitchen units will be fitted next week together with the appliances. 

Extension is now plaster boarded
Velux looking neater








Week commencing 9th April

At last the kitchen is being installed! The weather has been kind to the family who have had lots of picnic lunches which the children have enjoyed. The 2 year old loves having so many builders around the house and would happily help if he could. New baby hasn’t arrived yet but time is getting short. Apart from the extension the house is having a general makeover with many rooms including the hall being decorated and new carpets being laid!

new kitchen
The new kitchen is being installed

Week commencing 16th April

The majority of the kitchen cupboards, worktops, have been fitted together with the ovens, sink and dishwasher. The electrics are ready for the island and the unit surrounding the fridge freezer constructed. A feature orange radiator has been installed and walls painted a contrasting grey. The shower room has been gutted apart from the loo in readiness for the refit to a utility room. The washing machine has a temporary position in the shower room – a relief for the busy Mum.

orange radiator
A bold orange radiator stands out in the grey

Baby is now overdue but Mum is quite happy and would really like a working kitchen before any arrival – let’s hope baby knows that!

Week commencing 23rd April

The striking tiles are laid over the weekend. On Tuesday baby decides it is time to check out progress and calmly arrives at home to the sounds of the Tiler completing the finishing touches to the kitchen floor. By the end of the week the temporary kitchen has been dismantled. Dad is on paternity leave so in between helping with new baby and the other children he helps organise the plentiful cupboards. 


kitchen tiles
Striking tiles complement the kitchen units

Week commencing 30th April

It has been a busy Bank holiday, the kitchen island has been installed, the induction hob and extractor fan fitted  and fridge freezer in place. With the table and chairs in place it is beginning to look a fantastic space!

kitchen extractor
Kitchen extractor over hob
radiator and fridge
Radiator and fridge
kitchen island
Kitchen island and hob










Week commencing 7th May

This week the builders have been focusing on the utility room fitting the units and plumbing in the washing machine. The electrician will be along next week to add some sockets. To save unnecessary wastage they are keeping the original floor and fortunately have found some original tiles to make good where the shower has been removed.  In the extension wall lights have been added together with an original picture by a local artist.

utilty room
Utility room taking shape
Lights in extension
Original art work








Week commencing 14th May

Been rather slow on site this week, the builders have been busy with a close relative’s project which has a very tight deadline. Since the kitchen is useable the delay is manageable but hopefully after the next Bank Holiday work should recommence at a pace. Another new original picture has been hung in the dining area. The light from the Velux window catches the detail in the stunning scene.


original landscape
Original landscape

Week commencing 4th June

Builders are back on site and progress has been made. Inside the utility room is being fitted out, where the shower has been removed floor tiles have been laid (luckily the owners have some original tiles which can be used for patching). The washing machine is in place but not plumbed in (family life has continued at home but Mum would like the washing machine up and running soon!). It is amazing how much space there is in such an important room! In the kitchen skirting has been fitted and painted. Outside the terrace concrete is hardening and awaits the tiler to complete the seamless look from kitchen to garden.

utility room sink
Utility room sink
Terraced concreted
Terrace concreted









Week commencing 11th June

Work has been progressing outside, the airbricks have been laid at the edge of the patio and garden cleared in readiness for the artificial grass. A new loo has been installed in the utility room just in time for Great Granny’s visit! The warm weather has meant the bi-fold doors have already had good use!

patio ready for tiling
Patio ready for tiling
New toilet
New Loo








Week commencing 18th June

Things are drawing to a close, the kitchen splash back tiles have been put up and with bright orange grout! Outside the garden was fully prepared for the artificial grass which was laid just in time for a weekend BBQ. The children love playing outside and the artificial grass will make the small garden useable all year!

garden before grass
Garden before the grass
Artificial grass
Artificial grass laid, BBQ at the ready!
Kitchen splash back
Kitchen splash back with orange grout









July 2017 

It has been a while since we reported progress on this build. Weather has been changeable and although the extension largely complete there are a few final finishing touches required to get the extension signed off by Building Control. The most noticeable change has been the finishing of the outside tiles. Extending the kitchen tiles to the garden makes the overall space look bigger and gives a brilliant entertaining space. The step to the grass is quite low and manageable by the young children in the house.

Tiled patio
Bringing the outside in!



back home
Take me back home!