Improving our existing housing stock

tony
Posts: 19
Joined: Sat Dec 30, 2023 9:11 am
Location: Thames Valley
Contact:

Improving our existing housing stock

#1

Post by tony »

Should we tackle this problem on a home by home basis or could we tackle the mor serious shortcomings first, ie proceed on a task by task basis.
tony
Hobbies, energy use reduction
Lives in a very low energy house he designed and built
http://tonyshouse.readinguk.org/
Helps with DraughtBusters
https://readinguk.org/draughtbusters/
User avatar
Stinsy
Posts: 2640
Joined: Wed Jun 02, 2021 1:09 pm

Re: Improving our existing housing stock

#2

Post by Stinsy »

tony wrote: Thu Jan 04, 2024 6:33 pm Should we tackle this problem on a home by home basis or could we tackle the mor serious shortcomings first, ie proceed on a task by task basis.
Mix and match!

A lot of Victorian terraces have few redeeming features and are better off bulldozed. Round my way they’ve done this and improved some pretty scabby areas.

It’d have been nice if the new properties had heat pumps rather than gas boilers, came with air-tightness reports, and had solar. It’d also be nice if they weren't identikit, cramped, shit boxes. But there you go…

On the other hand a lot of our housing stock has value even if it isn’t well-insulated. I’d like to see some innovation WRT improving air-tightness and insulation.
12x 340W JA Solar panels (4.08kWp)
3x 380W JA Solar panels (1.14kWp)
5x 2.4kWh Pylontech batteries (12kWh)
LuxPower inverter/charger

(Artist formally known as ******, well it should be obvious enough to those for whom such things are important.)
ecogeorge
Posts: 337
Joined: Sun Oct 31, 2021 7:23 pm
Location: Gloucestershire

Re: Improving our existing housing stock

#3

Post by ecogeorge »

Compolsory solar roofs -not just a token panel.
Better insulation standards .
Compulsory parking space.
Minimum sized garden
Rainwater harvesting
George
1600w Vertical PV micro inverters
2000w almost horizontal/south
Aarrow Becton 7 Woodburner
Dream 3kw ASHP only connected to summer Pool.
Allotment heavy clay.
1.784kw Kirk Hill
0.875kw Derril Water
0.2kwWhitelaw Brae
1kw Harlow Hydro.
John_S
Posts: 334
Joined: Wed Jun 02, 2021 10:03 am
Location: West London

Re: Improving our existing housing stock

#4

Post by John_S »

ecogeorge wrote: Thu Jan 04, 2024 10:56 pm Compolsory solar roofs -not just a token panel.
Better insulation standards .
Compulsory parking space.
Minimum sized garden
Rainwater harvesting
George
I am not sure if compulsory parking spaces are required.

In cities, at least, a lot of younger people don’t bother with car ownership an d I don’t see the point of them having to buy or rent a useless asset.

In addition, in parts of London, flats are developed and sold on the basis that owners/occupies will never have the right to buy resident parking permits for the surrounding streets.
User avatar
Stinsy
Posts: 2640
Joined: Wed Jun 02, 2021 1:09 pm

Re: Improving our existing housing stock

#5

Post by Stinsy »

ecogeorge wrote: Thu Jan 04, 2024 10:56 pm Compolsory solar roofs -not just a token panel.
Better insulation standards .
Compulsory parking space.
Minimum sized garden
Rainwater harvesting
George
I totally agree we need specified building standards. I’ve suggested previously 1kWp of solar per bedroom would be a suitable minimum. Maybe it could be expressed as “designed to produce 1,000kWh per bedroom per year.

I’d like to see specified bedroom sizes too. Looked around a show home a few years ago and the saleswoman showed us a “double bedroom”. Sure there was a double bed in there but there wasn’t room for bedside tables let alone wardrobe or chest of drawers.
12x 340W JA Solar panels (4.08kWp)
3x 380W JA Solar panels (1.14kWp)
5x 2.4kWh Pylontech batteries (12kWh)
LuxPower inverter/charger

(Artist formally known as ******, well it should be obvious enough to those for whom such things are important.)
AGT
Posts: 659
Joined: Sat Jan 29, 2022 11:26 am

Re: Improving our existing housing stock

#6

Post by AGT »

I would like builders and subcontractors to follow approved standards, regulations etc and stop trying to build too quickly which in turn cuts corners.
I think councils need to get back to visiting sites, employing clerk of works and inspecting at various stages of builds.

Also insisting on witnessing door blower tests for every property.
GarethC
Posts: 204
Joined: Mon May 31, 2021 8:32 pm

Re: Improving our existing housing stock

#7

Post by GarethC »

Stinsy wrote: Thu Jan 04, 2024 8:01 pm
A lot of Victorian terraces have few redeeming features and are better off bulldozed. Round my way they’ve done this and improved some pretty scabby areas.
Hmm..Bulldozing and rebuilding has got to be more expensive, and with a far greater carbon debt, than even expensive, extensive refurbing surely?
John_S
Posts: 334
Joined: Wed Jun 02, 2021 10:03 am
Location: West London

Re: Improving our existing housing stock

#8

Post by John_S »

GarethC wrote: Fri Jan 05, 2024 1:02 pm
Stinsy wrote: Thu Jan 04, 2024 8:01 pm
A lot of Victorian terraces have few redeeming features and are better off bulldozed. Round my way they’ve done this and improved some pretty scabby areas.
Hmm..Bulldozing and rebuilding has got to be more expensive, and with a far greater carbon debt, than even expensive, extensive refurbing surely?
But bulldozing and rebuilding has the advantage of being VAT free and the extra 20% helps a lot.
Countrypaul
Posts: 473
Joined: Sun Jul 18, 2021 11:50 am

Re: Improving our existing housing stock

#9

Post by Countrypaul »

GarethC wrote: Fri Jan 05, 2024 1:02 pm
Stinsy wrote: Thu Jan 04, 2024 8:01 pm
A lot of Victorian terraces have few redeeming features and are better off bulldozed. Round my way they’ve done this and improved some pretty scabby areas.
Hmm..Bulldozing and rebuilding has got to be more expensive, and with a far greater carbon debt, than even expensive, extensive refurbing surely?
I feel sure that will depend on how much needs doing to the premises in question - as usual not a one solution for everywhere. On older premises with perhaps shallow foundations, solid walls, open fireplaces suspended wooden floors or even flagstones direct to ground, old glazing & doors, sagging roof it may well be less expensive to emolish and rebuild rather than retrofit lots on different parts such as insulated floor, external CWI, sealing air leaks, new roof, reming chimneys (or more sealing - without tar stains/damp), central heating, new DG/TG windows & doors many of which may require fitting new kitchen/bathrooms, completely rewiring etc. On the other hand a slightly more recent premiss might only need injected CWI, more insulation in the attic, updated windows and doors and replacing the gas boiler with a HP.

Clearly not black and white as whether to renovate or replace.
Marcus
Posts: 241
Joined: Mon Nov 08, 2021 6:25 pm

Re: Improving our existing housing stock

#10

Post by Marcus »

There's such a wide diversity of building design / quality, from pre-fabs and chalets, to solid dressed stone builds that there's no one size answer, but if you want a house to be airtight, watertight and vermintight (if there is such a word), then a lot of the time it is cheaper to demolish and rebuild, simply because retrofitting an existing structure takes a lot of (expensive) manhours.

If a structure was essentially well made to start with and/or has a lot of character/architectural merit then that may justify the extra expense or upgrading.

Edit: oops, i should probably have put heat-tight in the list of questionable words too.
450W hydro-electric
5110W pv
1.3kw Wt2 - not yet producing
6kWh lead acid - maybe 1kwh useable
LiMnCo battery made from 2nd hand hybrid car modules 3.6kwh nominal 24v.
300lt hot water tank and two storage heaters
ASHP Grant Aerona 3 10.5kw and UFH
Post Reply