Markuz

I would start here: https://www.gov.uk/government/publications/permitted-development-rights-for-householders-technical-guidance If its close to boundary, some restrictions will apply. Outbuildings or sheds larger than 30 sq m, will require building regs. If in doubt check with your Building Control.

Hi Claire, As in to enerphit standard which is just below passive house? For the every day person it will be so expensive they will not do it.

Check out https://fenbro.com/ it is Polish. Worth checking German manufacturers if they do export. Many stopped as its too much paperwork. I haven't used them. Tricky to import now that we are a 3rd world country, but not impossible. Either you declare everything yourself or get someone to do it. Things you will be paying on top of the full purchase price including insurance and delivery costs: - UK VAT 20% - import duty 0% (lucky here, depends what you buy) - fees for import agent ( if you use them)

Can you post some pictures and dimension please? Planning a garden room so might be good

I would say external wall insulation is not crazy expensive, its return will be in less heating ( obviously) but also helps with air tight envelope. Its all in the details and how well the not so straightforward areas are sealed. Fair few ways to get air tightness, for example Wraptite External Air Tightness Barrier ( super expensive) , intelligent membranes (https://www.intelligentmembranes.com/products) There is another way which is a blown sealing method to achieve great airtightness https://www.aerobarrieruk.co.uk/ I do agree, a bungalow must stay a bungalow! We are buying one as well.

Looks like the same as the UK https://www.gov.ie/en/publication/3e711-building-control/ 31 Local Authorities are designated as Building Control Authorities under the Building Control Acts 1990 to 2014. https://www.gov.ie/en/collection/d9729-technical-guidance-documents/

Our council is developing a new local plan and are setting targets and is in consultation mode. For example: All developments will be required to contribute to meeting carbon net zero emissions by 2045. To achieve this: i. All applications for residential development must include an Energy Statement which demonstrates the following: a) No on-site use of fossil fuels b) Space heating demand of less than 30kWh/m2/annum c) Overall operational energy use of less than 40 kWh/m2/annum d) How on-site energy generation is maximised, equivalent to at least the onsite energy demand (with a preference for roof mounted solar PV) This aligns with https://irp.cdn-website.com/bdbb2d99/files/uploaded/Task Force Report_STRATEGY_13Aug.pdf I have to check what it will mean for extensions and retrofits, but I would imagine it will push up everything significantly.

Name RIBA Stage House sale and buy Tools Design and planning Mobilisation , Site setup Demolition, strip out Urgent remedy fixes Foundation, trench, concrete Steel work 1st Fix Timber frame, floor, rafter, dwangs, insulation, sheeting inside and out, sealing of building envelope, breather membrane Drainage 1st fix, clip pipes 40mm and 100mm to uside of joists and connect into main stacks per drainage dwg Electrical 1st fix Hot Water Cald Water 1st fix, Heating 1st fix Facing brick and pointing to extension and to garage door infill, outer leaf only, include for all wall ties, cavity closers and inserting DPMs/DPCs Roofing - pantiles, battens, verges, soffit and rainwater Windows and screens, reveals and cills, dpcs and mastic, take delivery of and install windows and screens, price includes price for manufacture (see linked schedule spreadsheet for order) Plastering, excluding work described above Boiler, Radiators, testing see linked schedule spreadsheet for order) Doors (see linked schedule spreadsheet for order) 2nd fix Elect and Elct cert 2nd fix, skirtings, architraves (see linked schedule spreadsheet for order) Kitchen and utility, worktops, appliances incl labour New flooring to kitchen and living/dining, Decoration / client move in Garden Deck, redwood decking and softwood treated frame on concrete pads per section BB and steps around perimeter Fixings and snags Hope this helps a bit with stages. RIBA stages has a complex spreadsheet RIBAPlanofWorktoolbox_Jul2022.xlsx

We have a bungalow project like this and will be doing EWI. We have a filled cavity but no clue how that was done. I would not bother with internal wall insulation. Our approach is to have a wrap around with Continous insulation (probably around 200mm) to minimise cold bridging and work on our air tightness. Further more we will be looking at XPS at foundation level which is going to help as well. Did you check your cavity wall ties? Given the age of house they might not be the best. Reason I am saying is that you will be adding weight with Ewi so want to make sure it can take it.

Just did. We are in this phase and having spoken to some architechts, they have ruled themselves out saying things like: oh it will be around 20k or reading articles saying it is £4000 per square meter! So when we are looking at a simple design, why would i want an expensive architect plus a structural engineer and someone else drawing all the required drawings .

Most, if not all of us are dreaming of your site: remote island Guess a lot of decisions will be driven by how materials will get to you and what is available to you. Look forward to see some pictures

I love giant open spaces, so would move things around living room/diner/kitchen so that the stairs are not there. You have a lot of stairs

Thanks Marvin, we will have a retrofit strategy designed /created by architect. Yes, insulation is high on my list, having seen how much it can improve a house in cold and hot. My mom and my brother both had their houses done recently with 200mm graphite ewi and they barely need to heat or cool their house. Handy when outside temp reaches 40 degrees sometimes.

We don’t have anything is the best way to summarise. Just some outdated water tank and heating system.

We have started on our journey of Enerphit retrofit as we are in progress with purchasing a bungalow built in 1995 and extending/ changing rooms to meet our needs and desires. Our goal is to reach the EnerPHit standard with a retrofit plus utilise every single grant we can get and ideally get off the gas grid and bring an old house into the low energy world. Very early days but have been reading a lot already around the forum.