Rear kitchen extension with downstairs shower room/utility space 

Anthony Fig Thank you, You certainly have the space to build big and enjoy a little privacy out there.

Parts of London have started going downwards. It's incredible the amount of excavation and levels being added below street level. Land values are insanity in London.

Silly Simon

SimpleAs Liam The roof is insulated with 120mm PIR board which is over the top of the joists and the party wall was insulated with 60mm PIR backed plasterboard. The insulation value on this extension is even better than is required for current building regulations. The client decided to forgo the skylights to spend the budget elsewhere but they can easily be retrofitted.

Cheryl Oldford It took 8 weeks for this particular project, including the internal alterations and finishes.

Елена Соляникова Hi, I’m sorry I don’t understand.

@@pkpropertysolutionsltd701 He's delighted (...according to Google translate :)

David McArthur - thanks, I was wondering what that meant. I didn’t want to ignore it incase it was a genuine question or something.

olivia rumflake I would depend on the regulations of your local authorities, here we can usually increase the size of the original building by 30-40%. Thanks

Thomas Francis Not sure what you mean by 450 damp. We had engineering brickwork from footing to Dpc height and then block work with the Dpm tucked in on the internal course. If you mean a cavity tray then no that was not necessary and usually only required if you have something bridging the cavity like a lintle.

@@pkpropertysolutionsltd701 thanks for the reply it's just I've seen a not of extensions where they run a tray from first course blocks down to dpc on the outer bricks and wondered why they do it and when it might not be needed?

Thomas Francis There’s no harm in asking. That’s called a cavity tray, you’d use a tray in conjunction with weep vents if the circumstances required. In this situation the outside wall is rendered and pebble-dashed so you don’t get the transfer of moisture in to the cavity.

@@pkpropertysolutionsltd701 thanks so do all brick extensions have to have a tray with weep vents then?

Thomas Francis No you shouldn’t need them in 90% of extensions, the engineering brickwork runs down to the footing below the floor level so unless building control specify the use of a tray then it wouldn’t be common practice to install one

The steel was calculated to take the required loads and just sits on concrete pad stones and brickwork. There is be need for additional support because everything is in compression and the return wall gives the torsional support

@@pkpropertysolutionsltd701 thank you for your answers

Somewhere in the region of £35,000 to £40,000 would be a good starting point. I here labour is less in other parts of the country but in Greater London this would be about right.

These houses were built during the Victorian era of the industrial revolution so almost all of them have a alleyway to the rear which was used as a coal run. We just measured and cleared the alley then ordered machinery with retractable tracks to fit the access. Sometimes we can get a crane to carry the machinery over the building but only if doing a basement or something that justifies the expense. Thanks for the comment

Brinno construction time lapse camera

The first wall is just an extension of the original party wall which is build from solid 9” construction and the other walls are 4” cavity wall so toothing them in wouldn’t increase the strength at all. They are tied in afterwards with simpsons strong ties which are designed to be used for this reason.

It’s a solid 9” aerated concrete block wall so it’s internally insulated to get the required u value

michaeldibb : inspector clouseau .

@@pkpropertysolutionsltd701 what u value you mean? around 1.8 ? :D

@@Monsieur_Drake At the time this was designed and built to achieve 0.28W/m2k

my mistake, two walls 0.28

Party wall agreement.

@@findbluesky that makes no sense. The wall didnt have anything wrong with it. You cant use the agreement to extend the wall and bill your neighbour for half

@@Ironbuket you may know more than me about this then! We signed a party wall agreement when our neighbours were doing some work involving our adjoining wall. We didn't pay anything, I thought the reason we signed it was to say we were happy for them to have the work done on our shared wall

@@findbluesky Sorry, thought you meant the existing party wall agreement. If they made up a new agreement all well and good. That was the question I asked. As far as Im aware party wall agreement is about the joint ownership and responsibility for that wall. So making the wall bigger means you are equally responsible for the new section of wall when it falls down on someone because it wasnt built correctly. Not sure I would agree to having that wall built if I had a choice, unless I also planned to extend and build off it on my side also. In your case you signed to allow work on the existing wall or agreement to take equal responsibility for the new section or both? Did your deeds have to be changed, probably yes? Did they pay the costs for that?

There was a party wall agreement drawn up to cover both parties legally. Basically whoever needs the wall pays for it and should the neighbour decide to extend at a later date then he has one less wall to build.

Gloria Flores Hi sorry I don’t understand the language

PK Property Solutions LTD Spanish

Gloria Flores I'm English and I don't speak Spanish unfortunately, I had tried to translate using google but the sentence doesn't make any sense to me

PK Property Solutions Hello, my comments is not to look, the strong construction, for tremors and earthquakes ,,, and I hope in your country do not have earthquakes, one hundred my bad comment ..

thanks, It was approximately £38,000 including the internal works.

It’s tied in using Simpson’s strong ties, there not toothed in because one is a solid 9” construction and the other is a 12” cavity wall with two 4” walls and a 4” cavity

@@pkpropertysolutionsltd701 ah, makes sense. Couldn’t see that clearly on the vid (especially after a few beers lol) Cheers. Nice build. Liked the use of fixing foam for the battens before p/b. I’ve started doing that recently. 👍

stanzer That project was in s/east London and came in at around £38,000 with building control inspections and approval.

@@pkpropertysolutionsltd701 Thanks gives me an idea on likely cost for an extenstion for the same area.

That’s a lovely dream and in America and some places in Europe it’s still attainable but in the uk you need a lot of money and then you have to try and get the permission.

That’s what is specified by the architect and there perfectly fine for up to three storeys high and being rendered and having a cavity there a better choice thermally

Erlwin de Gans it’s a warm deck grp roof with 120mm of pir insulation board above the joists

Charley Fig Wool on the inside wouldn’t do anything, the walls and roof are constructed to create a cold side and a warm side with a vapour barrier between. The wool would only decrease the internal space for no increase in insulation value.

Charley Fig Wool is usually used to trap the air within the wool to slow down the transfer of heat from one side to the other. Similar principle to double glazing trapping air between the panes to insulate. In this circumstance putting wool inside the roof joists would only hold warm air up against the warm side of the PIR insulation and so not achieve much insulation value at all. We used 6” of PIR which would equate to many feet of wool.

@@pkpropertysolutionsltd701 thank you for explaining I would have never guessed .technology is great...... in some cases

Sorry I hadn’t seen your message until now, I’d estimate around £40,000 with todays material costs.

@@pkpropertysolutionsltd701 ok Great I shall start planning my bank heist now then 😅

Check with your local authority, should be allowed under permitted development guidelines but you’re responsible for making sure. I’d always advise paying a architect to do the design and drawings even if you don’t require planning, it’ll make the whole process much easier. Budget £40,000.00 with today’s prices

Zak Khan It took 2-3 men around 45 working days spread across 8 weeks. I try not to work Sundays but some Saturdays are unavoidable.

@@pkpropertysolutionsltd701thanks for that mate.

Tom Danger It wasn’t engineered for that so the joist sizes would not be rated for the additional load. If it was pre planned then the structural engineer would make the required allowances.

It also not permitted under standard regulations and require permission as you would over look all the neighbours and their right privacy

At 2.00 you can see the installation of a 1200 gauge damp proof membrane with PIR insulation and screed.

Approximately £38,000

@@infernogamers168 yes, you need to check with your local authority to see what the rules are in your area. Nowadays you can get away with permitted development as long as you are within the rules; building control is required either way to ensure the work meets the latest regulations

thanks, It took 8 weeks including the kitchen installation and internal works.

@Cool Calm Collective This was a customer supplied kitchen so I wouldn’t know the supplier. Your not likely to get this type of cabinet from a mass supplier like howdens or magnets; you need a smaller supplied direct kitchen company like Impress kitchens in Croydon who manufacture everything to order and so will make the cabinets to fit the space rather than standard sizes and colour combinations

It was a while ago now but I think it was around £38,000.

Lawrence Carpenter This is a warm deck grp roof, it uses 120mm of PIR insulation on top of the joists which negates thermal bridging. The underside is therefore the warm side and insulating the warm air against a warm surface wouldn’t achieve anything. Your not the first person to ask, if you need to understand more try to google warm deck grp. Thanks

@@pkpropertysolutionsltd701 thank u for your quick responce and I knew the roof had the insulation on it.Just thought the more the better.More R value.

Lawrence Carpenter The added r value would be negligible because it’s location, the vapour barrier installed as part of the system makes it basically air tight so the added wool would hold warm air against the warm side. With no wool there is warm air trapped against the warm side so very little is achieved.

If you watched the video properly you would have seen the insulation above ye cheeky bastard...how many extensions have you insulated

Mainly in the south east and central London, we do the odd jobs further afield usually for existing customers who have moved. It’s not competitive to have all the travelling costs etc. On top of the labor

PK Property Solutions LTD thanks, yes ca imagine with travel and digs for 8 weeks adds up. Well if I ever move down south, I know who to call now👍

It’s called a cavity wall system, in this case we have two thermalite airated concrete block walls spaced apart by 100mm; which is partially insulated by 50mm of PIR insulation board. It basically incorporates an air gap for insulation and keeps the wetter external wall away from the dry internal wall.

Around £38,000 with the internal work

There is 120mm of PIR insulation board above the ceiling. Our building regulations require the highest energy efficiency standards.

Christopher Lyon The majority of the internal stud walls are carrying the service pipework and cables so it made more sense to use stud work than masonary. The wall isn’t directly under the RSJ it’s stepped back around 2 foot and so is not load bearing at all.

@@pkpropertysolutionsltd701 I hadn't noticed the wall was set back, however, why not use block work and render the walls, mind you I guess stud work is quick and cheap with instant results?

Christopher Lyon If you pause the video around 5.22 you can see there are a lot of pipes and cables within the wall; that would require building a wall and then chasing the pipes in to the masonry before finishing which is a lot more work for no real gain. Also if there develops and fault/leak it can be inspected and fixed much simpler.

@@pkpropertysolutionsltd701 I tend to favour my pipes external to the wall for that very reason.

Christopher Lyon When we do contract work for the local authorities or for some landlords they also prefer the pipes just on the surface for future maintenance reasons but the majority of my personal clients would rather not see anything that’s not necessary. Each are valid for there own reasoning, we just provide a service to give the client what they are looking for

Ramon Sanchez I’m sorry I don’t understand the language.

Ash M Azad at 2.00 is when the floor insulation is installed

Marta Mazzucchi 1.37

Sky light would have helped

I was worried about how well a flat roof would work with the weather, all the other roofs have a pretty steep pitch.

@@kcanded Flat roof will work fine with the weather as long as it was done right and the gutters are kept clear. It's having to repair/replace it every few years that is annoying. Also vulnerable to people that might do future work on your house standing on it and damaging it. Extension flat roofs can be done with asphalt, which should last longer and puts up better to being walked on than felt does. This one looked like felt to me, good if you are improving just to sell it on, not so good if you intend to live there a while.

The flat roof is a very highly insulated warm deck grp roof; a fibreglass gel coated construction just like building a boat. They last on average 30+ years with no maintenance.

@@pkpropertysolutionsltd701 I stand corrected. Thought it could see crease in the felt at the corner seen at 1:52

Air admittance valve

@@pkpropertysolutionsltd701 what happens if you don't install either of those things?

@@depeshrai7290 Depends on the setup you have. Generally the idea is that when you say flush the toilet; the water flowing through the pipe pushes the air out in front of it and creates a vacuum/negative pressure behind it. Without and air vent it can suck out the water from the nearby water traps and then you’ll get the drain smell venting back in to the property

@@pkpropertysolutionsltd701 cheers

joyce cummings hi, yes 38,000 was for the completed project. The client supplied the kitchen cabinets and the tiles. There was a difficult access on this project, all materials had to be brought in by hand down a long alley and concrete had to be pumped from the road over 60m away.

PK Property Solutions LTD how long did it take ?

Paul Sheraton The project took 8 weeks to complete, we installed the steel in to the exterior wall and left it standing whilst we built the shell of the extension. This keeps the property secure and minimises the disruption until week 5-6.

Scyna Suffiotti The exit is at the rear from this view, there are french doors and a side exit door at the far end

That particular roof is a warm deck GRP flat roof. It has 120mm PIR insulation boards on top of the joists sandwiched between the the joists and 40:1 sloping firings as designed by the architect and approved by Croydon building control. The advantages are that there is no break in the insulation layer where usually the joist timbers would be, makes first fixing electrical and plumbing easier too.

@@pkpropertysolutionsltd701 Thanks for the reply. It just goes to show how far building materials have come on today. Back in the day we would struggle with the electrics amongest all the insulation. Thank you for clearing that up.....Kind regards Colin....

It’s a time lapse camera, it takes pictures at regular intervals and pieces them together.

Joseph Hanley We run a professional building service, a architect designed the extension and a structural engineer calculated the materials required. All plans were submitted to Croydon council planning authorities and the surrounding houses was consulted prior to the commencement of works.

steved6472 It’s a 20mm stone dashing to match the existing house, not sure why it’s shocking. Anything else would make it look more like an add on.

PK Property Solutions LTD sorry mate weren’t being a troll it’s a great build .just when The Sun hits that side it looks bad but you’re right you gotta match what’s there tbf 👍

MAND We run a professional building service, the plans were approved by the local authority and the neighbor’s were all given time to appeal or object. A contract was signed between the two households called a party wall agreement.