Extension Architecture

Nobody thinks about the boiler when planning an extension. You think about the kitchen layout. The worktop material. The bifold doors. The rooflight. The connection to the garden. The boiler is in a cupboard in the hallway doing its job quietly and you assume it will keep doing its job after the extension is built. Our architects putney practice checked the boiler during the first visit. Not because we asked them to. Because they check it on every project. What they found explained why so many Putney extensions feel cold in winter even with underfloor heating installed. Our boiler was too small for the extended house. And nobody would have noticed until the first cold snap in November. What Too Small Means Our boiler was a 24kW combi. Adequate for our three bedroom Victorian terrace in its original configuration. Three radiators downstairs. Four upstairs. One bathroom. The boiler coped fine. Hot water on demand. Radiators warm within twenty minutes. No complaints. Add a thirty sq...

Most people don't call an architect because everything is fine. They call because something about their home has stopped working. Maybe the layout feels awkward now that both of you work from home. Maybe the kids have outgrown their shared bedroom. Or maybe you've just spent another Sunday morning in a kitchen that's too dark and too small, and you've finally had enough. In Enfield, this happens a lot. People buy homes they love in a neighbourhood they don't want to leave, and then spend years putting up with spaces that don't quite fit. The house looked perfect on the estate agent's photos, but living in it every day tells a different story. The good news is that most of these problems are fixable without moving. You just need someone who can look at your home with fresh eyes and figure out how to make it work properly. At Extension Architecture, we've helped homeowners throughout the borough do exactly that. If you're ready to make changes, our te...

Every architect we consulted wanted to remove it. The chimney breast in our rear reception room. A brick column projecting 350mm into the room taking up valuable floor space. Dead space. An obstacle. Something that belonged to the Victorian era and had no place in a modern open plan kitchen diner. Our architect in ealing said something different. "Dont remove it. Use it." We thought she was joking. The chimney breast was the reason the room felt cramped. Removing it was the obvious first step. Every renovation on our street had removed theirs. It was practically a rite of passage for Ealing homeowners. She wasnt joking. And what she did with that chimney breast is now the favourite feature in our entire house. Why Everyone Removes Chimney Breasts Because it seems logical. The breast projects into the room. Remove it and you gain 350mm of width across the full depth of the room. On a room thats only 3.5 metres wide that 350mm feels significant. But removing a chimney br...

Our neighbours didnt know we were having a loft conversion until the scaffold came down. Eight weeks of construction above their heads and neither of them realised what was happening until they saw the finished dormer from their gardens. We told them beforehand obviously. Served party wall notices. Explained the timeline. But both said afterwards the build was so quiet they forgot it was happening. Our architect walthamstow practice designed the conversion specifically to minimise disruption. In Walthamstow where terraces are tightly packed, how you build matters almost as much as what you build. Why Loft Conversions Are Quieter Than Extensions A rear extension involves heavy groundwork. Excavation. Concrete. Drainage trenches. Steel craned over the house. Bricklaying. Weeks of noise and vibration at ground level travelling through party walls. A loft conversion happens above everything. Lighter structural work. Smaller steel beams. Timber dormer construction which is quieter tha...

Six weeks. Not eight. Not ten. Six weeks from submission to approval. In a borough where most applications take the full eight week determination period and some stretch to twelve. Our runnymede planning application was fast tracked. Not because we paid extra. Not because we knew someone at the council. Because our architect submitted one document that most applications dont include. A flood risk assessment. Our property sits near the Thames in Egham. Parts of Runnymede fall within flood risk zones. Our house is in Flood Zone 2. Not the highest risk category but high enough that the council needs to see evidence that you have considered flood risk before they approve any extension. Most architects submit standard drawings and let the council raise flood risk as a query during the assessment. That query adds weeks. Our architect addressed it upfront. The officer had everything they needed from day one. No queries. No delays. Six weeks to approval. Why Flood Risk Matters in Runnymed...

The closest architect to our house was four hundred metres away. Literally around the corner. We could see their office from our bedroom window. They had a nice sign. A professional website. Five star reviews. We hired them. Because they were close. Because walking to meetings felt convenient. Because supporting a local business felt right. It was the wrong decision. Not because they were bad architects. Because being close to our house didnt mean they understood our house. Searching architect for extension near me gave us proximity. What we actually needed was expertise. What Proximity Gave Us Quick meetings. We could walk to their office in five minutes. Drop in to check on drawings. Pop round with a question. The convenience was genuine. But convenience doesnt design a good extension. Our architect was primarily a commercial practice. Offices. Retail fit outs. The occasional new build house. Residential extensions were a side activity. Maybe three or four a year alongside their...

We walked into the first meeting with a clear plan. A four metre rear extension for a bigger kitchen. We had the sketch. We had the budget. We had been planning it for two years. Our Hounslow architects practice listened to the whole pitch. Then asked one question. "Where do your kids do homework right now." At the kitchen table. Obviously. Where else. The kitchen table is the only flat surface in the house that isnt covered in something else. They do homework there every evening while we try to cook dinner around them. Its chaos. But thats just how it works in a three bed semi in Hounslow. Every family we know does the same thing. "What if the kitchen isnt the problem. What if the problem is that your house has nowhere else for your kids to work." That question scrapped our entire plan. And replaced it with something better. The Original Plan Four metre rear extension. Open plan kitchen diner. Island with seating. Bifold doors. Budget. Fifty five thousand t...

Our extension cost forty two thousand. Our neighbour three doors down built almost the same thing for sixty one thousand. Same street. Same type of house. Same approximate size. Nineteen thousand pounds difference. The reason for that gap comes down to one thing our architects dalston practice knew about Hackney Council that our neighbours architect didnt. The pre application advice service and exactly how to use it. Our neighbour submitted a full planning application without pre application advice. It was refused. Redesigned. Resubmitted. Approved on the second attempt. The failed first attempt cost four months, a redesign fee, two application fees, and a builder who increased his quote because material costs had risen during the delay. We spent three hundred pounds on pre application advice. Got the officers feedback. Designed accordingly. Submitted once. Approved in seven weeks. What Pre Application Advice Told Us Hackney Council has specific views about rear extensions in con...

We had the garden for it. A proper Dorking garden. Deep enough for a five metre extension with room left over for the kids to play, the trampoline to stay, and the dog to run laps. We had the budget. Seventy thousand. Enough for a large single storey rear extension with a premium kitchen and all the trimmings. And we had the desire. Three years of living with a kitchen that was too dark, too narrow, and too far from the garden. Three years of saying "next year we will do it." Our architect listened to all of this during the first meeting. Then he asked a question that nobody else had. "If I could give you the kitchen you want for forty thousand instead of seventy, what would you do with the other thirty." We didnt have an answer. Because nobody had ever suggested we didnt need to spend the full budget. Every other conversation had been about spending all of it. Our architect was the first person to ask whether we needed to. If you are planning a project in Dork...

Two architects told us our Camden extension would probably get approved. Our third architect said probably isnt good enough in this borough and did something neither of the others suggested. She applied for pre application advice before designing anything. For three hundred pounds the council gave us informal feedback on the principle of extending. The officer confirmed a single storey rear extension was acceptable but flagged two concerns. The proposed depth was at the upper limit. And they wanted a pitched roof element where the extension met the original house. Three hundred pounds. Two specific pieces of feedback that shaped the entire design before we committed to a full set of drawings. The first two architects would have designed what we asked for. Submitted it. Waited eight weeks. And probably received a refusal letter listing the exact concerns the pre application process revealed for a fraction of the cost. If you are planning an extension in Camden and looking for architect...

We spent sixty two thousand on our extension. The house is now worth ninety five thousand more than it was before we started. Thats not a guess. Thats based on two independent estate agent valuations we got six months after the project was finished. Thirty three thousand pounds of value created out of thin air. Or more accurately, created out of good design decisions made by an architect who understood what adds value in Elmbridge and what doesnt. Not every extension adds more than it costs. We know neighbours who spent similar money and barely broke even on the value uplift. Same borough. Same type of house. Different architect. Different decisions. Different result. If you are planning an extension in Elmbridge and looking for Elmbridge architects who think about value as well as design, heres what made the difference on our project. The Decisions That Created Value Our architect made three recommendations that we initially resisted. All three turned out to be the reason our extens...

  Our extension went well. Genuinely well. On budget. On time. No major surprises. No arguments. No sleepless nights wondering whether we had made a terrible decision. I know that sounds boring. Every extension story online is about disasters. Budgets that doubled. Builders who disappeared. Planning applications that got refused. Marriages that nearly ended. Ours is not that story. And the reason it is not that story is because of three things we did before the builder arrived on site. Three decisions that took a total of about six hours of our time and cost less than a thousand pounds combined. But those three things prevented every single problem that turns extension projects into horror stories. If you are planning an extension in Guildford and looking for architects guildford who will set your project up to go smoothly rather than spectacularly wrong, heres what we did and why it worked. Thing One: We Checked Every Constraint Before Designing Anything This took about an hour....