When to Start the Remortgage Process
For an RTB remortgage, start the process three to six months before your current deal ends. This allows time for the extra conveyancing checks and for any council or housing association liaison. A typical timeline:
| Timing | Action |
|---|---|
| 6 months before deal ends | Gather documents: Section 125 notice, current mortgage statement, last 3 payslips |
| 4-5 months before | Contact a whole-of-market broker, compare product transfer vs external remortgage |
| 3 months before | Submit application; application in principle issued; formal offer within 2-4 weeks |
| 2 months before | Conveyancing begins; solicitor obtains council reply on Section 156 restriction if needed |
| 1 month before | Completion scheduled to align with existing deal end date |
Inside Clawback vs Outside Clawback
The single biggest variable in the RTB remortgage process is whether you are inside or outside the clawback window. For standard Right-to-Buy in England that window is 5 years from purchase; for preserved Right-to-Buy (where the property was transferred from council to housing association before you bought) it is 10 years.
Inside clawback
- Section 156 restriction remains on the title register
- Council or HA may need to be notified of new mortgage
- Capital raising often restricted to home improvements
- Sale during this window would trigger repayment of a proportion of the discount
- Lender panel narrower — Halifax, Leeds BS, Nationwide are among the most active
Outside clawback
- Section 156 restriction may still be on title but is no longer triggering
- Remortgage treated much like a standard residential remortgage
- Full panel of lenders accessible depending on property type
- Capital raising for any lawful purpose generally allowed at standard LTV
Always check your title register at the Land Registry before remortgaging. A copy of the title register costs £3 from gov.uk and shows any restrictions clearly.
Lender Panel and Criteria
RTB remortgage lenders in the UK 2026 market break into three tiers:
Tier 1 — Mainstream, RTB-friendly
Halifax, Nationwide, Leeds Building Society, Skipton Building Society. These lenders have established RTB policies, broker-trained underwriters, and well-understood criteria.
Tier 2 — Case-by-case
Barclays, Santander, NatWest. Will consider RTB but may decline ex-LA flats in certain blocks, or apply tighter LTV limits.
Tier 3 — Specialist
Kensington Mortgages, Pepper Money, Vida Homeloans. Useful for RTB borrowers with complex profiles: self-employed, adverse credit, unusual property construction.
Typical criteria across all tiers:
- Maximum LTV usually 75-90% depending on lender and property type
- Minimum loan usually £25,000-£50,000
- Maximum loan usually £500,000-£1m (wide variation)
- Property must be of standard construction; non-standard (concrete, steel-framed) often excluded
- High-rise blocks (typically 4+ storeys) may need additional checks on cladding, EWS1
- Deck access flats often excluded by some lenders
How the Process Works Step by Step
A worked example: Mr and Mrs A bought their ex-council flat in March 2022 for £120,000 with a 2-year fix. The flat was valued at £180,000 in the Section 125 notice, giving a £60,000 discount. In March 2024 they refixed for 2 years with the same lender. Now, in early 2026, they want to remortgage to a better rate and raise £10,000 for a new kitchen.
- Pre-application — They obtain title register showing the Section 156 restriction (still in place, expires March 2027). Gather income documents, Section 125 notice, current statement.
- Broker consultation — Broker confirms that inside clawback, they can capital-raise for home improvements only, and identifies three lenders likely to accept.
- Decision in principle — One lender (Leeds BS) issues DIP for £95,000 at 75% LTV of current £195,000 valuation. Rate offered: 4.49% 5-year fix.
- Full application — Application submitted with improvement quotes and kitchen receipts plan. Valuation carried out — returns at £198,000.
- Offer — Mortgage offer issued 3 weeks after application.
- Conveyancing — Solicitor confirms Section 156 restriction, notifies council. No council objection received within 20 working days.
- Completion — New mortgage completes on date of existing deal expiry. Old loan redeemed same day. Kitchen funds released.
Total elapsed time: around 10 weeks. Total extra cost versus a standard remortgage: around £150 extra conveyancing.