Manchester's newer homes
A big slice of Manchester is recent. Of the 257,700 properties the Valuation Office counted in 2026, 28.1% went up from 2000 onwards, and 16.6% from 2009 onwards (VOA, stock of properties 2026). Much of that growth has been flats in and around the city centre.
The ward figures show it. Deansgate leads, with 86.2% of households in a flat; Piccadilly has 76.5%, Hulme 68.3% and Ancoats & Beswick 61.2% (ONS Census 2021). Outside the centre, newer houses sit on infill sites and estates across the city.
Newer homes already rate well for energy. Across Manchester, band C or above already covers 78.6% of flats that have a certificate (ONS). Solar on a new home is less about rescuing a poor rating and more about what the household gets from the roof for decades to come.
The Future Homes and Buildings Standards
New rules for homes built in England take effect on 24 March 2027. The government confirmed the Future Homes and Buildings Standards in a written ministerial statement on 24 March 2026 (written statement). For most new homes they make on-site renewable generation a requirement, and in practice that usually means solar panels on the roof (pv magazine).
There is a transition. Homes already in the pipeline can still be built to the current rules for a period, which runs to 24 March 2028. So for a few years Manchester will have new homes with panels and new homes without them, depending on when each development got under way.
What this means for a buyer:
- A home completed before the standard applies may have panels, because some developers already fit them, or it may not. Ask; do not assume.
- A home built under the new standard will normally have some on-site generation, but the size of the system is the developer's design choice within the rules. Ask for it in kW.
- The standard sets a minimum for the building. It does not settle the paperwork, the export meter or the warranties, which are where buyers most often lose out.
The change matters locally. Manchester City Council has set 2038 as the city's zero-carbon year, and its plan counts on almost 400 megawatts of solar by 2030 (Manchester City Council). Every new home that goes up with panels already fitted is one roof that never needs a retrofit, a second scaffold or a later grid application.
New-build and retrofit costs compared
Fitting panels while a house is being built is cheaper per kW than adding them afterwards. The government's 2025/26 cost data for Great Britain gives a mean of £1,599 per kW for new-build domestic solar. Panels added to existing homes averaged £2,022 per kW (DESNZ solar PV cost data). That is about 21% less per kW, by our arithmetic.
| Measure | New build | Retrofit |
|---|---|---|
| Mean cost per kW | £1,599 | £2,022 |
| Domestic installations counted | 24,992 in total | 150,600 in total |
| Share of domestic installations | 14.2% | 85.8% |
From the DESNZ new build costs table. The new-build share is our arithmetic from the retrofit share.
The reasons are practical. On a building site the scaffolding is already up, the roof is open, and cables can run through the walls before they are plastered. A developer buying for a whole estate also buys in bulk.
Two cautions. These are Great Britain figures, not North West ones. For adding panels to an existing Manchester home, the North West mean for systems up to 4 kW was £2,021 per kW in the same year, and the cost guide covers that market. And on a new home you rarely see the panels priced separately: they are part of the purchase price, so the useful questions are about what you are getting.
What to ask the developer
Ask these before you exchange contracts, and get the answers in writing.
- How big is the system, in kW? And how many panels, on which roof faces? The roof yield explorer turns that into kWh a year.
- Will I get the MCS certificate? Export payments depend on it for systems of this size (Ofgem), and you will need it when you sell.
- Is the meter set up to record exports? Without that, no supplier can pay for what the panels send to the grid.
- What warranties come with the panels and the inverter, and in whose name? Ask for the documents themselves, not a summary.
- Who do I contact if it stops working? In the early years that may be the developer's customer care team; later it will be the installer or the maker.
- Has the grid operator been notified? Ask for a copy of the G98 notification for your home.
- Are the panels fitted on top of the tiles or set into the roof? It affects how repairs and replacements are done later.
- Is there space and wiring for a battery? Adding one later is simpler if the installer planned for it.
If the developer cannot answer, ask who installed the system and check the firm on the MCS register. The installer checklist lists the same points from a homeowner's side.
Vague answers are a warning, not a dead end. Your solicitor can raise the same questions as formal enquiries during conveyancing, and the replies then form part of the sale record. That matters later: when you come to sell, your own buyer's solicitor will ask you for the MCS certificate, the warranties and the grid paperwork.
Adding panels to a newer home later
A home built from 2000 onwards is often the simplest kind to add solar to. The roof is likely to be in good condition, the wiring is modern, and there are no old slates or chimney stacks to work round. A few checks are specific to newer homes, though.
Start with the kWh case. Estate layouts put roofs facing every direction, so check what yours would make in the roof yield explorer before asking for quotes.
- The new-home warranty. If the home is still within its warranty period, ask the warranty provider whether fixing panels to the roof affects cover.
- Estate rules and the title. Some estates have covenants or management company rules about changes to the outside of homes. Read them before booking quotes.
- Planning. Panels on a house roof usually fall under permitted development, but a planning permission for an estate can sometimes remove those rights. If in doubt, ask the council's planning service; the planning guide explains the normal rules.
- The grid limit. If the home already has panels, more of them, or a battery, can push the inverter total over 3.68 kW on a single-phase supply and into a G99 application. The grid connection guide explains the difference.
City-centre flats and new blocks
In a new block the roof belongs to the building's owner, not to the people in the flats. Any panels on it are a communal system. The power usually goes to shared supplies such as lifts, corridor lighting and the entrance, and only sometimes to individual flats.
If you are buying a flat in a new development in Deansgate, Ancoats or Hulme, ask the developer or managing agent three things. Is there a system on the roof, and how big is it? Where does its power go? And how are its maintenance and eventual replacement paid for through the service charge? The answers belong in the sales pack, and a solicitor can ask for them if they are missing.
Flat owners who want generation of their own have one more option. Plug-in balcony panels count as permitted development from 27 August 2026, though not on timber, and the lease may still need the building owner's consent. The guide for flats covers shared roofs and balconies in more detail.