I take it the boiler swap out is for ASHP or similar and you have to ensure the network is sized large enough to cope with low grade heat? This is my worry with the current "No new gas boilers from 2030 (I think that's the date) " The politicians think it's wonderful but who will tell Joe Public it's not a straight swop? Bigger radiators will be needed and possibly bigger pipework in addition to probable thermal insulation upgrades to the property structure.
Looking ahead, are our street electrical infrastructures man enough to suddenly cope with the extra load from ASHP? It obviously won't happen over night but.... Also how would the additional loading impact the phase sharing in the street?
My other big concern, whenever I see big new housing developments announced, is..... I hope you've checked the local drainage / water / utility services for capacity. They didn't do that once in my area to a big development and we had months of roadworks while they upgraded the gas mains. No-one admitted it but you didn't need to be a rocket scientist (just a services engineer!) to figure it out!