I retired very early and would definitely recommend it.
Here's what I would suggest you think about:
Top up your NI contributions to max state pension entitlement.
Your current private pension provider - look at it's performance record and fees. Can you transfer to one with lower fees; better growth record; easier to manage funds yourself. I found Vanguard Life Strategy funds and Aviva are both very easy to manage online with low fees, but undertake your own research. Trustnet is an easy way to investigate fund performance.
This can make a big difference to your final pension pot and it's worth spending time doing well - you don't need a financial adviser for that. Look into it yourself and keep a close eye on it - review it at least every quarter. You may need to wait until you leave work, if your employer currently contributes, before moving it.
You can invest your entire year's salary in a pension, and receive a 20% tax relief top up.. If you are planning to leave work next year and manage without an income - why not invest your whole salary now, for the year ahead, into your pension to give it a big boost before you leave? It will also give you a trial run of how you will manage without that income.
If you have spare funds from your house sale, you could invest in another private pension to make use of the tax relief uplift. If you are not working you can invest £2880 per year which will be topped up to £3600 by the government. You could access this smaller pension first for the initial few years when you reach qualifying age (likely to be 57), leaving your main private pension to grow and minimise tax liability.
Take time to consider before leaving the property market or downsizing. Property values can and do rise very quickly - often more quickly than pension investments - though that is by no means guaranteed. In general terms a house is usually an appreciating asset, whereas a houseboat will lose value year by year. Also, in years to come you could consider an income from equity release. Schemes are very much better now, and often very flexible and well regulated.
If your DH's pension income is below the threshold for income tax, it might be worth looking into putting some savings into an immediate vesting pension for him (pays out straight away in a lump sum but still attracts tax relief of 20%). There is an annual limit on this as he is already retired.
As interest rates are rising, keep an eye on pension annuity rates for your DH, (and yourself as you approach retirement age). They have been very much out of favour for years as payouts have been very low, but they are creeping up as linked to interest rates. They may become an attractive option if rates increase further. They provide a guaranteed rate, which can be index linked, and provide for a spouse. They can also be time limited to bridge the gap years between claiming a private and state pension.
If you will be asset rich but income poor, don't forget to check if you or your DH are entitled to any benefits - pension credit, winter fuel discount, council tax discount. Your savings may not allow it but worth checking.
Pensionwise is the free impartial advice service provided by the government to advise on those with a defined contribution pension pot, so worth using if you need to for pension advice - you don't have to be retired to do so.
Sorry it's long - hope it helps, and good luck!