An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. Landlords in Plymstock (PL9) usually come to us with a council letter, a fire risk assessment or a house they have just bought. We price from whichever you have.
- Area
- Devon, England
- Postcodes
- PL9
- Location
- 2 miles east of Plymouth
- Pricing region
- South West
What do extensions for extra rooms in Plymstock involve?
- Ensuite drainage and extraction
- Foundations, structure and roof
- Heating, insulation and glazing
- Planning route check and drawings
- Party wall coordination where needed
Which rules apply in Plymstock?
Extensions for extra rooms in Plymstock must satisfy national law for England, the council’s written HMO standards and, where walls, drainage or fire separation change, the building rules. In short:
- 3–6 unrelated sharers is use class C4; changing from a family house is usually permitted development unless an Article 4 direction applies.
- Building regulations cover structural changes, new partitions, ensuite drainage, fire-resisting construction and notifiable electrical work.
- The Fire Safety Order 2005 applies to the common parts of HMOs, enforced by the fire and rescue authority.
- Council standards often step up at 5 and 6 sharers, for example a separate WC at 5 and a second bathroom from 6.
How much do extensions for extra rooms cost in Plymstock?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Single-storey extension, about 15 m² | £35,000 – £60,000 | £36,400 – £62,400 | project |
| Single-storey extension per m² | £1,800 – £4,000 | £1,850 – £4,150 | m² |
Prices in Plymstock are shown with our regional adjustment for South West (above the UK average). Your quote is itemised and fixed in writing once the scope and specification are agreed.
How long does it take?
Typical time on site: 8–14 weeks. We agree the programme with you before starting and send photo updates as the work progresses.
When do Plymstock landlords need it?
Landlords in Plymstock most often ask us for this when:
- Adding a ground-floor room
- A kitchen too small for the number of sharers
Questions about extensions for extra rooms in Plymstock
Do you handle building control?
Yes, from application to completion certificate.
Do you cover all of Plymstock?
Yes. We work across Plymstock and the PL9 postcode areas, plus the rest of Devon. Nearby places we also cover include Plymouth, Paignton, Newton Abbot.
Where do I check the HMO rules for an address in Plymstock?
With the local council for the address. Councils in England can add additional licensing and Article 4 directions on top of the national rules. Check the council’s website for the exact address before you buy or start work.
How much do extensions for extra rooms cost in Plymstock?
Our guide ranges for South West are in the table on this page, and the guide-price tool gives a figure for your house. A fixed written quote follows a free site visit.
Extensions for extra rooms near Plymstock
- Plymouth · 2 mi
- Paignton · 24 mi
- Newton Abbot · 24 mi
- Torquay · 26 mi
- St Austell · 30 mi
- Exmouth · 35 mi
- All of Devon
Other HMO services in Plymstock
- Loft conversions for extra rooms in Plymstock
- Communal kitchen refits in Plymstock
- Layout changes and room reconfiguration in Plymstock
- Large HMO conversions (7+ sharers) in Plymstock
- Ensuite installation in Plymstock
- House to HMO conversion in Plymstock
- Shared bathroom and shower room refits in Plymstock
- Fire alarm and detection systems in Plymstock